refactor(dnn/arm): refactor direct algo in algo selection

GitOrigin-RevId: d195f44decb45847fa46e0e90d6e64368c07539c

dnn/src/aarch64/conv_bias/fp16/algos.cpp

@@ -22,26 +22,19 @@ using namespace aarch64;
 /* ===================== stride-2 algo ===================== */
 MIDOUT_DECL(megdnn_aarch64_conv_bias_stride2_conv2357_fp16)
 
-bool ConvBiasImpl::AlgoF16DirectStride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoF16DirectStride2::usable(const NCBKernSizeParam& param,
+                                                AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_aarch64_conv_bias_stride2_conv2357_fp16, 0, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
-        bool aviliable =
-                param.filter_meta.format == param::Convolution::Format::NCHW &&
-                param.src_type.enumv() == DTypeEnum::Float16 &&
-                param.filter_type.enumv() == DTypeEnum::Float16 &&
-                param.dst_type.enumv() == DTypeEnum::Float16 &&
-                !fm.should_flip && fm.spatial_ndim == 2 &&
-                fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
-                fm.stride[0] == 2 && fm.stride[1] == 2 && FH == fm.spatial[1] &&
-                (FH == 2 || FH == 3 || FH == 5 || FH == 7);
-        if (algo_selection_strategy == AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return param.filter_meta.format == param::Convolution::Format::NCHW &&
+               param.src_type.enumv() == DTypeEnum::Float16 &&
+               param.filter_type.enumv() == DTypeEnum::Float16 &&
+               param.dst_type.enumv() == DTypeEnum::Float16 &&
+               !fm.should_flip && fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && fm.stride[0] == 2 && fm.stride[1] == 2 &&
+               FH == fm.spatial[1] &&
+               (FH == 2 || FH == 3 || FH == 5 || FH == 7);
     }
     MIDOUT_END();
     return false;
@@ -50,8 +43,9 @@ bool ConvBiasImpl::AlgoF16DirectStride2::usable(
 size_t ConvBiasImpl::AlgoF16DirectStride2::get_workspace(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_aarch64_conv_bias_stride2_conv2357_fp16, 0, 1) {
+        bool large_group = param.filter_meta.group >= param.nr_threads;
         auto wbundle = arm_common::MultithreadDirectConvCommon<
-                dt_float16, __fp16>::get_bundle_stride(param, m_large_group);
+                dt_float16, __fp16>::get_bundle_stride(param, large_group);
         return wbundle.total_size_in_bytes();
     }
     MIDOUT_END();
@@ -77,6 +71,7 @@ ConvBiasImpl::AlgoF16DirectStride2::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     using Func = std::function<void(const __fp16*, const __fp16*, __fp16*,
                                     size_t, size_t, size_t, size_t, size_t)>;
     Func conv = nullptr;
@@ -91,11 +86,11 @@ ConvBiasImpl::AlgoF16DirectStride2::get_kimpls(
     }
 
     WorkspaceBundle bundle = arm_common::MultithreadDirectConvCommon<
-            dt_float16, __fp16>::get_bundle_stride(param, m_large_group);
+            dt_float16, __fp16>::get_bundle_stride(param, large_group);
     SmallVector<NCBKern> ret_kerns;
 
     //! Dense conv and small group
-    if (m_large_group) {
+    if (large_group) {
         //! Channel wise conv and big groups
         auto exec_one_group = [bundle, conv](
                                       const NCBKernParam& kern_param,

dnn/src/aarch64/conv_bias/fp16/algos.h

@@ -18,15 +18,9 @@ namespace aarch64 {
 /* ===================== stride-2 algo ===================== */
 class ConvBiasImpl::AlgoF16DirectStride2 final : public AlgoBase {
     SmallVector<NCBKern> get_kimpls(const NCBKernSizeParam& param) const;
-    bool m_large_group;
-
 public:
-    AlgoF16DirectStride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "ARMV8F16STRD2_LARGE_GROUP"
-                             : "ARMV8F16STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "ARMV8F16STRD2"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 

dnn/src/aarch64/conv_bias/fp32/algos.cpp

@@ -21,26 +21,19 @@ using namespace megdnn;
 using namespace aarch64;
 
 MIDOUT_DECL(megdnn_aarch64_conv_bias_stride2_conv2357_fp32)
-bool ConvBiasImpl::AlgoF32DirectStride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoF32DirectStride2::usable(const NCBKernSizeParam& param,
+                                                AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_aarch64_conv_bias_stride2_conv2357_fp32, 0, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
-        bool aviliable =
-                param.filter_meta.format == param::ConvBias::Format::NCHW &&
-                param.src_type.enumv() == DTypeEnum::Float32 &&
-                param.filter_type.enumv() == DTypeEnum::Float32 &&
-                param.dst_type.enumv() == DTypeEnum::Float32 &&
-                !fm.should_flip && fm.spatial_ndim == 2 &&
-                fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
-                fm.stride[0] == 2 && fm.stride[1] == 2 && FH == fm.spatial[1] &&
-                (FH == 2 || FH == 3 || FH == 5 || FH == 7);
-        if (algo_selection_strategy == AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return param.filter_meta.format == param::ConvBias::Format::NCHW &&
+               param.src_type.enumv() == DTypeEnum::Float32 &&
+               param.filter_type.enumv() == DTypeEnum::Float32 &&
+               param.dst_type.enumv() == DTypeEnum::Float32 &&
+               !fm.should_flip && fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && fm.stride[0] == 2 && fm.stride[1] == 2 &&
+               FH == fm.spatial[1] &&
+               (FH == 2 || FH == 3 || FH == 5 || FH == 7);
     }
     MIDOUT_END();
     return false;
@@ -49,8 +42,9 @@ bool ConvBiasImpl::AlgoF32DirectStride2::usable(
 size_t ConvBiasImpl::AlgoF32DirectStride2::get_workspace(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_aarch64_conv_bias_stride2_conv2357_fp32, 0, 1) {
+        bool large_group = param.filter_meta.group >= param.nr_threads;
         auto wbundle = arm_common::MultithreadDirectConvCommon<
-                float, float>::get_bundle_stride(param, m_large_group);
+                float, float>::get_bundle_stride(param, large_group);
         return wbundle.total_size_in_bytes();
     }
     MIDOUT_END();
@@ -75,6 +69,7 @@ ConvBiasImpl::AlgoF32DirectStride2::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     using Func = std::function<void(const float*, const float*, float*, size_t,
                                     size_t, size_t, size_t, size_t)>;
     Func conv = nullptr;
@@ -89,11 +84,11 @@ ConvBiasImpl::AlgoF32DirectStride2::get_kimpls(
     }
 
     WorkspaceBundle bundle = arm_common::MultithreadDirectConvCommon<
-            float, float>::get_bundle_stride(param, m_large_group);
+            float, float>::get_bundle_stride(param, large_group);
     SmallVector<NCBKern> ret_kerns;
 
     //! Dense conv and small group
-    if (m_large_group) {
+    if (large_group) {
         //! Channel wise conv and big groups
         auto exec_one_group = [bundle, conv](
                                       const NCBKernParam& kern_param,

dnn/src/aarch64/conv_bias/fp32/algos.h

@@ -22,15 +22,9 @@ using FallbackConvBiasImpl = fallback::ConvBiasImpl;
 
 class ConvBiasImpl::AlgoF32DirectStride2 final : public AlgoBase {
     SmallVector<NCBKern> get_kimpls(const NCBKernSizeParam& param) const;
-    bool m_large_group;
-
 public:
-    AlgoF32DirectStride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "ARMV8F32STRD2_LARGE_GROUP"
-                             : "ARMV8F32STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "ARMV8F32STRD2"; }
 
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;

dnn/src/aarch64/conv_bias/opr_impl.cpp

@@ -25,13 +25,11 @@ using namespace megdnn;
 using namespace aarch64;
 
 class ConvBiasImpl::AlgoPack : NonCopyableObj {
-    AlgoF32DirectStride2 f32_direct_stride2_large_group{true};
-    AlgoF32DirectStride2 f32_direct_stride2_small_group{false};
+    AlgoF32DirectStride2 f32_direct_stride2;
     AlgoS8MatrixMul s8_matrix_mul;
     AlgoQU8MatrixMul qu8_matrix_mul;
 #if __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
-    AlgoF16DirectStride2 f16_direct_stride2_large_group{true};
-    AlgoF16DirectStride2 f16_direct_stride2_small_group{false};
+    AlgoF16DirectStride2 f16_direct_stride2;
 #endif
 
 public:
@@ -39,11 +37,9 @@ public:
         matmul_algos.emplace_back(&qu8_matrix_mul);
         matmul_algos.emplace_back(&s8_matrix_mul);
 #if __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
-        direct_algos.emplace_back(&f16_direct_stride2_large_group);
-        direct_algos.emplace_back(&f16_direct_stride2_small_group);
+        direct_algos.emplace_back(&f16_direct_stride2);
 #endif
-        direct_algos.emplace_back(&f32_direct_stride2_large_group);
-        direct_algos.emplace_back(&f32_direct_stride2_small_group);
+        direct_algos.emplace_back(&f32_direct_stride2);
     }
     SmallVector<AlgoBase*> direct_algos;
     SmallVector<AlgoBase*> matmul_algos;

dnn/src/arm_common/conv_bias/f16/algos.cpp

@@ -192,9 +192,8 @@ MEGDNN_WINOGRAD_ALGO_FUN_DEFINE_ALL(AlgoFP16WinogradF23_8x8,
 
 MIDOUT_DECL(megdnn_arm_common_conv_bias_fp16_kimpl)
 
-bool ConvBiasImpl::AlgoF16Direct::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoF16Direct::usable(const NCBKernSizeParam& param,
+                                         AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_fp16_kimpl, 0, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
@@ -203,20 +202,14 @@ bool ConvBiasImpl::AlgoF16Direct::usable(
         // ``param.osz[0]*param.osz[1] >= 8'' comes from the fact that the
         // kernel may have access to up to 8 fp16 after the end of the memory
         // chunk.
-        bool aviliable = fm.format == param::ConvBias::Format::NCHW &&
-                         param.src_type.enumv() == DTypeEnum::Float16 &&
-                         param.filter_type.enumv() == DTypeEnum::Float16 &&
-                         param.dst_type.enumv() == DTypeEnum::Float16 &&
-                         fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
-                         fm.dilation[1] == 1 &&
-                         param.isz[0] * param.isz[1] >= 8 &&
-                         param.osz[0] * param.osz[1] >= 8 && FH <= 7 &&
-                         SH == 1 && SW == 1;
-        if (algo_selection_strategy == AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return fm.format == param::ConvBias::Format::NCHW &&
+               param.src_type.enumv() == DTypeEnum::Float16 &&
+               param.filter_type.enumv() == DTypeEnum::Float16 &&
+               param.dst_type.enumv() == DTypeEnum::Float16 &&
+               fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && param.isz[0] * param.isz[1] >= 8 &&
+               param.osz[0] * param.osz[1] >= 8 && FH <= 7 && SH == 1 &&
+               SW == 1;
     }
     MIDOUT_END();
     return false;
@@ -225,9 +218,10 @@ bool ConvBiasImpl::AlgoF16Direct::usable(
 size_t ConvBiasImpl::AlgoF16Direct::get_workspace(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_fp16_kimpl, 0, 1) {
+        bool large_group = param.filter_meta.group >= param.nr_threads;
         auto wbundle =
                 MultithreadDirectConvCommon<dt_float16, __fp16>::get_bundle(
-                        param, m_large_group);
+                        param, large_group);
         return wbundle.total_size_in_bytes();
     }
     MIDOUT_END();
@@ -241,13 +235,14 @@ SmallVector<ConvBiasImpl::NCBKern> ConvBiasImpl::AlgoF16Direct::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     WorkspaceBundle bundle =
             MultithreadDirectConvCommon<dt_float16, __fp16>::get_bundle(
-                    param, m_large_group);
+                    param, large_group);
     SmallVector<NCBKern> ret_kerns;
     //! When group >= nr_threads, treat it as large_group, each thread process
     //! one group for better performance
-    if (m_large_group) {
+    if (large_group) {
         //! Channel wise conv and big groups
         auto exec_one_group = [bundle](const NCBKernParam& kern_param,
                                         const NCBKernIndex& ncb_index) mutable {
@@ -316,27 +311,18 @@ SmallVector<ConvBiasImpl::NCBKern> ConvBiasImpl::AlgoF16Direct::dispatch_kerns(
 
 /* ===================== stride-1 algo ===================== */
 
-bool ConvBiasImpl::AlgoF16DirectStride1::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoF16DirectStride1::usable(const NCBKernSizeParam& param,
+                                                AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_fp16_kimpl, 1, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
-        bool aviliable =
-                param.filter_meta.format == param::ConvBias::Format::NCHW &&
-                param.src_type.enumv() == DTypeEnum::Float16 &&
-                param.filter_type.enumv() == DTypeEnum::Float16 &&
-                param.dst_type.enumv() == DTypeEnum::Float16 &&
-                !fm.should_flip && fm.spatial_ndim == 2 &&
-                fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
-                fm.stride[0] == 1 && fm.stride[1] == 1 && FH == fm.spatial[1] &&
-                (FH == 2 || FH == 3 || FH == 5);
-        if (algo_selection_strategy ==
-            ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return param.filter_meta.format == param::ConvBias::Format::NCHW &&
+               param.src_type.enumv() == DTypeEnum::Float16 &&
+               param.filter_type.enumv() == DTypeEnum::Float16 &&
+               param.dst_type.enumv() == DTypeEnum::Float16 &&
+               !fm.should_flip && fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && fm.stride[0] == 1 && fm.stride[1] == 1 &&
+               FH == fm.spatial[1] && (FH == 2 || FH == 3 || FH == 5);
     }
     MIDOUT_END();
     return false;
@@ -351,6 +337,7 @@ ConvBiasImpl::AlgoF16DirectStride1::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     using Func = std::function<void(const __fp16*, const __fp16*, __fp16*,
                                     size_t, size_t, size_t, size_t, size_t)>;
     Func conv_kern_function = nullptr;
@@ -371,11 +358,11 @@ ConvBiasImpl::AlgoF16DirectStride1::get_kimpls(
 
     WorkspaceBundle bundle =
             MultithreadDirectConvCommon<dt_float16, __fp16>::get_bundle_stride(
-                    param, m_large_group);
+                    param, large_group);
     SmallVector<NCBKern> ret_kerns;
     //! When group >= nr_threads, treat it as large_group, each thread process
     //! one group for better performance
-    if (m_large_group) {
+    if (large_group) {
         //! Channel wise conv and big groups
         auto exec_one_group = [bundle, conv_kern_function](
                                       const NCBKernParam& kern_param,
@@ -423,8 +410,9 @@ ConvBiasImpl::AlgoF16DirectStride1::get_kimpls(
 size_t ConvBiasImpl::AlgoF16DirectStride1::get_workspace(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_fp16_kimpl, 1, 1) {
+        bool large_group = param.filter_meta.group >= param.nr_threads;
         auto bundle = MultithreadDirectConvCommon<
-                dt_float16, __fp16>::get_bundle_stride(param, m_large_group);
+                dt_float16, __fp16>::get_bundle_stride(param, large_group);
         return bundle.total_size_in_bytes();
     }
     MIDOUT_END();

dnn/src/arm_common/conv_bias/f16/algos.h

@@ -79,15 +79,10 @@ public:
 
 class ConvBiasImpl::AlgoF16Direct final : public AlgoBase {
     SmallVector<NCBKern> get_kimpls(const NCBKernSizeParam& param) const;
-    bool m_large_group;
 
 public:
-    AlgoF16Direct(bool is_large_group) : m_large_group{is_large_group} {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "F16DIRECT_LARGE_GROUP"
-                             : "F16DIRECT_SMALL_GROUP";
-    }
+    const char* name() const override { return "F16DIRECT"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 
@@ -99,14 +94,10 @@ public:
 
 class ConvBiasImpl::AlgoF16DirectStride1 final : public AlgoBase {
     SmallVector<NCBKern> get_kimpls(const NCBKernSizeParam& param) const;
-    bool m_large_group;
 
 public:
-    AlgoF16DirectStride1(bool is_large_group) : m_large_group{is_large_group} {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "F16STRD1_LARGE_GROUP" : "F16STRD1_SMALL_GROUP";
-    }
+    const char* name() const override { return "F16STRD1"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
     size_t get_workspace(const NCBKernSizeParam& param) const override;

dnn/src/arm_common/conv_bias/fp32/algos.cpp

@@ -334,9 +334,8 @@ MEGDNN_WINOGRAD_ALGO_FUN_DEFINE_ALL(AlgoFP32WinogradF63_4x4_NCHW44,
 /* ===================== direct algo ===================== */
 MIDOUT_DECL(megdnn_arm_common_conv_bias_f32_kimpl);
 
-bool ConvBiasImpl::AlgoF32Direct::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoF32Direct::usable(const NCBKernSizeParam& param,
+                                         AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_f32_kimpl, 0, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
@@ -345,20 +344,14 @@ bool ConvBiasImpl::AlgoF32Direct::usable(
         // ``param.osz[0]*param.osz[1] >= 4'' comes from the fact that the
         // kernel may have access to up to 4 floats after the end of the memory
         // chunk.
-        bool aviliable = fm.format == param::ConvBias::Format::NCHW &&
-                         param.src_type.enumv() == DTypeEnum::Float32 &&
-                         param.filter_type.enumv() == DTypeEnum::Float32 &&
-                         param.dst_type.enumv() == DTypeEnum::Float32 &&
-                         fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
-                         fm.dilation[1] == 1 &&
-                         param.isz[0] * param.isz[1] >= 4 &&
-                         param.osz[0] * param.osz[1] >= 4 && FH <= 7 &&
-                         SH == 1 && SW == 1;
-        if (algo_selection_strategy == AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return fm.format == param::ConvBias::Format::NCHW &&
+               param.src_type.enumv() == DTypeEnum::Float32 &&
+               param.filter_type.enumv() == DTypeEnum::Float32 &&
+               param.dst_type.enumv() == DTypeEnum::Float32 &&
+               fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && param.isz[0] * param.isz[1] >= 4 &&
+               param.osz[0] * param.osz[1] >= 4 && FH <= 7 && SH == 1 &&
+               SW == 1;
     }
     MIDOUT_END();
     return false;
@@ -366,8 +359,9 @@ bool ConvBiasImpl::AlgoF32Direct::usable(
 size_t ConvBiasImpl::AlgoF32Direct::get_workspace(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_f32_kimpl, 0, 1) {
+        bool large_group = param.filter_meta.group >= param.nr_threads;
         auto wbundle = MultithreadDirectConvCommon<float, float>::get_bundle(
-                param, m_large_group);
+                param, large_group);
         return wbundle.total_size_in_bytes();
     }
     MIDOUT_END();
@@ -380,13 +374,14 @@ SmallVector<ConvBiasImpl::NCBKern> ConvBiasImpl::AlgoF32Direct::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     WorkspaceBundle bundle =
             MultithreadDirectConvCommon<float, float>::get_bundle(
-                    param, m_large_group);
+                    param, large_group);
     SmallVector<NCBKern> ret_kerns;
     //! When group >= nr_threads, treat it as large_group, each thread process
     //! one group for better performance
-    if (m_large_group) {
+    if (large_group) {
         //! Channel wise conv and big groups
         auto exec_one_group = [bundle](const NCBKernParam& kern_param,
                                        const NCBKernIndex& ncb_index) mutable {
@@ -452,27 +447,19 @@ SmallVector<ConvBiasImpl::NCBKern> ConvBiasImpl::AlgoF32Direct::dispatch_kerns(
     return {};
 }
 /* ===================== stride-1 algo ===================== */
-bool ConvBiasImpl::AlgoF32DirectStride1::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoF32DirectStride1::usable(const NCBKernSizeParam& param,
+                                                AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_f32_kimpl, 1, 1) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
-        bool aviliable =
-                param.filter_meta.format == param::ConvBias::Format::NCHW &&
-                param.src_type.enumv() == DTypeEnum::Float32 &&
-                param.filter_type.enumv() == DTypeEnum::Float32 &&
-                param.dst_type.enumv() == DTypeEnum::Float32 &&
-                !fm.should_flip && fm.spatial_ndim == 2 &&
-                fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
-                fm.stride[0] == 1 && fm.stride[1] == 1 && FH == fm.spatial[1] &&
-                (FH == 2 || FH == 3 || FH == 5 || FH == 7);
-        if (algo_selection_strategy ==
-            ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return param.filter_meta.format == param::ConvBias::Format::NCHW &&
+               param.src_type.enumv() == DTypeEnum::Float32 &&
+               param.filter_type.enumv() == DTypeEnum::Float32 &&
+               param.dst_type.enumv() == DTypeEnum::Float32 &&
+               !fm.should_flip && fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && fm.stride[0] == 1 && fm.stride[1] == 1 &&
+               FH == fm.spatial[1] &&
+               (FH == 2 || FH == 3 || FH == 5 || FH == 7);
     }
     MIDOUT_END();
     return false;
@@ -481,9 +468,10 @@ bool ConvBiasImpl::AlgoF32DirectStride1::usable(
 size_t ConvBiasImpl::AlgoF32DirectStride1::get_workspace(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_f32_kimpl, 1, 1) {
+        bool large_group = param.filter_meta.group >= param.nr_threads;
         auto bundle =
                 MultithreadDirectConvCommon<float, float>::get_bundle_stride(
-                        param, m_large_group);
+                        param, large_group);
         return bundle.total_size_in_bytes();
     }
     MIDOUT_END();
@@ -499,6 +487,7 @@ ConvBiasImpl::AlgoF32DirectStride1::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     using Func = std::function<void(const float*, const float*, float*, size_t,
                                     size_t, size_t, size_t, size_t)>;
     Func conv_kern_function = nullptr;
@@ -522,11 +511,11 @@ ConvBiasImpl::AlgoF32DirectStride1::get_kimpls(
 
     WorkspaceBundle bundle =
             MultithreadDirectConvCommon<float, float>::get_bundle_stride(
-                    param, m_large_group);
+                    param, large_group);
     SmallVector<NCBKern> ret_kerns;
     //! When group >= nr_threads, treat it as large_group, each thread process
     //! one group for better performance
-    if (m_large_group) {
+    if (large_group) {
         //! Channel wise conv and big groups
         auto exec_one_group = [bundle, conv_kern_function](
                                       const NCBKernParam& kern_param,
@@ -580,27 +569,19 @@ ConvBiasImpl::AlgoF32DirectStride1::dispatch_kerns(
 
 /* ===================== stride-2 algo ===================== */
 
-bool ConvBiasImpl::AlgoF32DirectStride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoF32DirectStride2::usable(const NCBKernSizeParam& param,
+                                                AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_f32_kimpl, 2, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
-        bool aviliable =
-                param.filter_meta.format == param::ConvBias::Format::NCHW &&
-                param.src_type.enumv() == DTypeEnum::Float32 &&
-                param.filter_type.enumv() == DTypeEnum::Float32 &&
-                param.dst_type.enumv() == DTypeEnum::Float32 &&
-                !fm.should_flip && fm.spatial_ndim == 2 &&
-                fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
-                fm.stride[0] == 2 && fm.stride[1] == 2 && FH == fm.spatial[1] &&
-                (FH == 2 || FH == 3 || FH == 5 || FH == 7);
-        if (algo_selection_strategy ==
-            ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return param.filter_meta.format == param::ConvBias::Format::NCHW &&
+               param.src_type.enumv() == DTypeEnum::Float32 &&
+               param.filter_type.enumv() == DTypeEnum::Float32 &&
+               param.dst_type.enumv() == DTypeEnum::Float32 &&
+               !fm.should_flip && fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && fm.stride[0] == 2 && fm.stride[1] == 2 &&
+               FH == fm.spatial[1] &&
+               (FH == 2 || FH == 3 || FH == 5 || FH == 7);
     }
     MIDOUT_END();
     return false;
@@ -608,9 +589,10 @@ bool ConvBiasImpl::AlgoF32DirectStride2::usable(
 size_t ConvBiasImpl::AlgoF32DirectStride2::get_workspace(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_f32_kimpl, 2, 1) {
+        bool large_group = param.filter_meta.group >= param.nr_threads;
         auto bundle =
                 MultithreadDirectConvCommon<float, float>::get_bundle_stride(
-                        param, m_large_group);
+                        param, large_group);
         return bundle.total_size_in_bytes();
     }
     MIDOUT_END();
@@ -625,6 +607,7 @@ ConvBiasImpl::AlgoF32DirectStride2::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     using Func = std::function<void(const float*, const float*, float*, size_t,
                                     size_t, size_t, size_t, size_t)>;
     Func conv_kern_function = nullptr;
@@ -648,11 +631,11 @@ ConvBiasImpl::AlgoF32DirectStride2::get_kimpls(
 
     WorkspaceBundle bundle =
             MultithreadDirectConvCommon<float, float>::get_bundle_stride(
-                    param, m_large_group);
+                    param, large_group);
     SmallVector<NCBKern> ret_kerns;
     //! When group >= nr_threads, treat it as large_group, each thread process
     //! one group for better performance
-    if (m_large_group) {
+    if (large_group) {
         //! Channel wise conv and big groups
         auto exec_one_group = [bundle, conv_kern_function](
                                       const NCBKernParam& kern_param,

dnn/src/arm_common/conv_bias/fp32/algos.h

@@ -128,15 +128,10 @@ public:
 
 class ConvBiasImpl::AlgoF32Direct final : public AlgoBase {
     SmallVector<NCBKern> get_kimpls(const NCBKernSizeParam& param) const;
-    bool m_large_group;
 
 public:
-    AlgoF32Direct(bool is_large_group) : m_large_group{is_large_group} {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "F32DIRECT_LARGE_GROUP"
-                             : "F32DIRECT_SMALL_GROUP";
-    }
+    const char* name() const override { return "F32DIRECT"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 
@@ -147,14 +142,10 @@ public:
 
 class ConvBiasImpl::AlgoF32DirectStride1 final : public AlgoBase {
     SmallVector<NCBKern> get_kimpls(const NCBKernSizeParam& param) const;
-    bool m_large_group;
 
 public:
-    AlgoF32DirectStride1(bool is_large_group) : m_large_group{is_large_group} {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "F32STRD1_LARGE_GROUP" : "F32STRD1_SMALL_GROUP";
-    }
+    const char* name() const override { return "F32STRD1"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 
@@ -165,14 +156,10 @@ public:
 
 class ConvBiasImpl::AlgoF32DirectStride2 final : public AlgoBase {
     SmallVector<NCBKern> get_kimpls(const NCBKernSizeParam& param) const;
-    bool m_large_group;
 
 public:
-    AlgoF32DirectStride2(bool is_large_group) : m_large_group{is_large_group} {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "F32STRD2_LARGE_GROUP" : "F32STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "F32STRD2"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 

dnn/src/arm_common/conv_bias/int8/algos.cpp

@@ -27,17 +27,10 @@ using namespace arm_common;
 
 MIDOUT_DECL(megdnn_arm_common_conv_bias_int8)
 /* ===================== stride1 algo ===================== */
-bool ConvBiasImpl::AlgoS8DirectStride1::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible = direct_int8_stride1::can_conv_direct_stride1_int8(param);
-    auto fm = param.filter_meta;
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = fm.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-    return avaible;
+
+bool ConvBiasImpl::AlgoS8DirectStride1::usable(const NCBKernSizeParam& param,
+                                               AlgoSelectionStrategy) const {
+    return direct_int8_stride1::can_conv_direct_stride1_int8(param);
 }
 bool ConvBiasImpl::AlgoS8DirectStride1::is_preferred(
          const NCBKernSizeParam& param) const {
@@ -53,8 +46,9 @@ bool ConvBiasImpl::AlgoS8DirectStride1::is_preferred(
 }
 
 size_t ConvBiasImpl::AlgoS8DirectStride1::get_workspace(
-         const NCBKernSizeParam& param) const {
-    auto bundle = direct_int8_stride1::get_bundle(param, m_large_group);
+        const NCBKernSizeParam& param) const {
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_int8_stride1::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -62,7 +56,8 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoS8DirectStride1::dispatch_kerns(
          const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_int8, 1, 0) {
-        return direct_int8_stride1::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_int8_stride1::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};
@@ -117,21 +112,15 @@ ConvBiasImpl::AlgoS8ChanWiseStride2NCHW44::dispatch_kerns(
 }
 
 /* ===================== stride2 algo ===================== */
-bool ConvBiasImpl::AlgoS8DirectStride2::usable(
-         const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible = direct_int8_stride2::can_conv_direct_stride2_int8(param);
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-    return avaible;
+bool ConvBiasImpl::AlgoS8DirectStride2::usable(const NCBKernSizeParam& param,
+                                               AlgoSelectionStrategy) const {
+    return direct_int8_stride2::can_conv_direct_stride2_int8(param);
 }
 
 size_t ConvBiasImpl::AlgoS8DirectStride2::get_workspace(
         const NCBKernSizeParam& param) const {
-    auto bundle = direct_int8_stride2::get_bundle(param, m_large_group);
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_int8_stride2::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -139,7 +128,8 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoS8DirectStride2::dispatch_kerns(
          const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_int8, 1, 1) {
-        return direct_int8_stride2::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_int8_stride2::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};
@@ -147,24 +137,15 @@ ConvBiasImpl::AlgoS8DirectStride2::dispatch_kerns(
 
 #if __ARM_FEATURE_DOTPROD
 /* ===================== dot stride1 algo ======================== */
-bool ConvBiasImpl::AlgoDotS8DirectStride1::usable(
-         const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible =
-            direct_dotprod_int8_stride1::can_conv_direct_stride1_int8(param);
-
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-
-    return avaible;
+bool ConvBiasImpl::AlgoDotS8DirectStride1::usable(const NCBKernSizeParam& param,
+                                                  AlgoSelectionStrategy) const {
+    return direct_dotprod_int8_stride1::can_conv_direct_stride1_int8(param);
 }
 
 size_t ConvBiasImpl::AlgoDotS8DirectStride1::get_workspace(
         const NCBKernSizeParam& param) const {
-    auto bundle = direct_dotprod_int8_stride1::get_bundle(param, m_large_group);
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_dotprod_int8_stride1::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -172,29 +153,23 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoDotS8DirectStride1::dispatch_kerns(
          const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_int8, 2, 1) {
-        return direct_dotprod_int8_stride1::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_dotprod_int8_stride1::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};
 }
 
 /* ===================== dot stride2 algo ======================== */
-bool ConvBiasImpl::AlgoDotS8DirectStride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible =
-            direct_dotprod_int8_stride2::can_conv_direct_stride2_int8(param);
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-    return avaible;
+bool ConvBiasImpl::AlgoDotS8DirectStride2::usable(const NCBKernSizeParam& param,
+                                                  AlgoSelectionStrategy) const {
+    return direct_dotprod_int8_stride2::can_conv_direct_stride2_int8(param);
 }
 
 size_t ConvBiasImpl::AlgoDotS8DirectStride2::get_workspace(
-         const NCBKernSizeParam& param) const {
-    auto bundle = direct_dotprod_int8_stride2::get_bundle(param, m_large_group);
+        const NCBKernSizeParam& param) const {
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_dotprod_int8_stride2::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -202,7 +177,8 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoDotS8DirectStride2::dispatch_kerns(
          const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_int8, 2, 2) {
-        return direct_dotprod_int8_stride2::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_dotprod_int8_stride2::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};

dnn/src/arm_common/conv_bias/int8/algos.h

@@ -18,14 +18,10 @@ namespace megdnn {
 namespace arm_common {
 
 class ConvBiasImpl::AlgoS8DirectStride1 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoS8DirectStride1(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "S8STRD1_LARGE_GROUP" : "S8STRD1_SMALL_GROUP";
-    }
+    const char* name() const override { return "S8STRD1"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
     size_t get_workspace(const NCBKernSizeParam& param) const override;
@@ -36,14 +32,10 @@ public:
 };
 
 class ConvBiasImpl::AlgoS8DirectStride2 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoS8DirectStride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "S8STRD2_LARGE_GROUP" : "S8STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "S8STRD2"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 
@@ -115,16 +107,10 @@ public:
 };
 
 class ConvBiasImpl::AlgoDotS8DirectStride1 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoDotS8DirectStride1(bool large_group) : m_large_group(large_group) {}
-
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "ARMDOTS8STRD1_LARGE_GROUP"
-                             : "ARMDOTS8STRD1_SMALL_GROUP";
-    }
+    const char* name() const override { return "ARMDOTS8STRD1"; }
     bool usable(const NCBKernSizeParam&,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 
@@ -134,15 +120,10 @@ public:
 };
 
 class ConvBiasImpl::AlgoDotS8DirectStride2 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoDotS8DirectStride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "ARMDOTS8STRD2_LARGE_GROUP"
-                             : "ARMDOTS8STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "ARMDOTS8STRD2"; }
 
     bool usable(const NCBKernSizeParam&,
                 AlgoSelectionStrategy algo_selection_strategy) const override;

dnn/src/arm_common/conv_bias/int8x8x16/algos.cpp

@@ -82,28 +82,20 @@ void get_rectified_size_str2(size_t IH, size_t IW, size_t OH, size_t OW,
 }  // namespace
 
 /* ===================== direct algo ===================== */
-bool ConvBiasImpl::AlgoI8x8x16Direct::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoI8x8x16Direct::usable(const NCBKernSizeParam& param,
+                                             AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_int8816_kimpl, 1, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
-        bool aviliable =
-                param.bias_mode == BiasMode::NO_BIAS &&
-                param.nonlineMode == NonlineMode::IDENTITY &&
-                fm.format == param::ConvBias::Format::NCHW && !fm.should_flip &&
-                param.src_type.enumv() == DTypeEnum::Int8 &&
-                param.filter_type.enumv() == DTypeEnum::Int8 &&
-                param.dst_type.enumv() == DTypeEnum::Int16 &&
-                fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
-                fm.dilation[1] == 1 && fm.stride[0] == 1 && fm.stride[1] == 1 &&
-                FH == fm.spatial[1] && (FH == 2 || FH == 3 || FH == 5);
-        if (algo_selection_strategy ==
-            ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return param.bias_mode == BiasMode::NO_BIAS &&
+               param.nonlineMode == NonlineMode::IDENTITY &&
+               fm.format == param::ConvBias::Format::NCHW && !fm.should_flip &&
+               param.src_type.enumv() == DTypeEnum::Int8 &&
+               param.filter_type.enumv() == DTypeEnum::Int8 &&
+               param.dst_type.enumv() == DTypeEnum::Int16 &&
+               fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
+               fm.dilation[1] == 1 && fm.stride[0] == 1 && fm.stride[1] == 1 &&
+               FH == fm.spatial[1] && (FH == 2 || FH == 3 || FH == 5);
     }
     MIDOUT_END();
     return false;
@@ -117,11 +109,12 @@ WorkspaceBundle ConvBiasImpl::AlgoI8x8x16Direct::get_bundle(
     auto OH = param.osz[0], OW = param.osz[1];
     auto PH = fm.padding[0], PW = fm.padding[1];
     size_t OH2, OW2, IH2, IW2;
+    bool large_group = group >= param.nr_threads;
     get_rectified_size_str1(IH, IW, OH, OW, PH, PW, IH2, IW2, OH2, OW2);
     size_t part0 = 0u, part1 = 0u;
     if (need_src_copy_str1(param)) {
-        part0 = m_large_group ? IC * IH2 * IW2 * sizeof(int8_t) * nr_threads
-                              : IC * IH2 * IW2 * sizeof(int8_t) * group * batch;
+        part0 = large_group ? IC * IH2 * IW2 * sizeof(int8_t) * nr_threads
+                            : IC * IH2 * IW2 * sizeof(int8_t) * group * batch;
     }
     if (need_dst_copy_str1(param)) {
         part1 = OH2 * OW2 * sizeof(int16_t) * nr_threads + 16;
@@ -255,9 +248,10 @@ SmallVector<ConvBiasImpl::NCBKern> ConvBiasImpl::AlgoI8x8x16Direct::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     WorkspaceBundle bundle = get_bundle(param);
     SmallVector<NCBKern> ret_kerns;
-    if (m_large_group) {
+    if (large_group) {
         auto exec_one_group = [bundle](const NCBKernParam& kern_param,
                                         const NCBKernIndex& ncb_index) mutable {
             auto fm = kern_param.filter_meta;
@@ -302,28 +296,20 @@ ConvBiasImpl::AlgoI8x8x16Direct::dispatch_kerns(
 }
 
 /* ===================== stride-2 algo ===================== */
-bool ConvBiasImpl::AlgoI8x8x16Stride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoI8x8x16Stride2::usable(const NCBKernSizeParam& param,
+                                              AlgoSelectionStrategy) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_int8816_kimpl, 2, 0) {
         auto&& fm = param.filter_meta;
         auto FH = fm.spatial[0];
-        bool aviliable = param.bias_mode == BiasMode::NO_BIAS &&
-                         param.nonlineMode == NonlineMode::IDENTITY &&
-                         fm.format == param::ConvBias::Format::NCHW &&
-                         !fm.should_flip &&
-                         param.src_type.enumv() == DTypeEnum::Int8 &&
-                         param.filter_type.enumv() == DTypeEnum::Int8 &&
-                         param.dst_type.enumv() == DTypeEnum::Int16 &&
-                         fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
-                         fm.stride[0] == 2 && fm.stride[1] == 2 &&
-                         FH == fm.spatial[1] && (FH == 2 || FH == 3 || FH == 5);
-        if (algo_selection_strategy ==
-            ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-            bool large_group = param.filter_meta.group >= param.nr_threads;
-            aviliable &= (large_group == m_large_group);
-        }
-        return aviliable;
+        return param.bias_mode == BiasMode::NO_BIAS &&
+               param.nonlineMode == NonlineMode::IDENTITY &&
+               fm.format == param::ConvBias::Format::NCHW && !fm.should_flip &&
+               param.src_type.enumv() == DTypeEnum::Int8 &&
+               param.filter_type.enumv() == DTypeEnum::Int8 &&
+               param.dst_type.enumv() == DTypeEnum::Int16 &&
+               fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
+               fm.stride[0] == 2 && fm.stride[1] == 2 && FH == fm.spatial[1] &&
+               (FH == 2 || FH == 3 || FH == 5);
     }
     MIDOUT_END();
     return false;
@@ -340,9 +326,10 @@ WorkspaceBundle ConvBiasImpl::AlgoI8x8x16Stride2::get_bundle(
     size_t OH2, OW2, IH2, IW2;
     get_rectified_size_str2(IH, IW, OH, OW, FH, FW, PH, PW, IH2, IW2, OH2, OW2);
     size_t part0 = 0u, part1 = 0u;
+    bool large_group = group >= param.nr_threads;
     if (need_src_copy_str2(param)) {
-        part0 = m_large_group ? IC * IH2 * IW2 * sizeof(int8_t) * nr_threads
-                              : IC * IH2 * IW2 * sizeof(int8_t) * group * batch;
+        part0 = large_group ? IC * IH2 * IW2 * sizeof(int8_t) * nr_threads
+                            : IC * IH2 * IW2 * sizeof(int8_t) * group * batch;
     }
     if (need_dst_copy_str2(param)) {
         part1 = OH2 * OW2 * sizeof(int16_t) * nr_threads + 16;
@@ -475,9 +462,10 @@ SmallVector<ConvBiasImpl::NCBKern> ConvBiasImpl::AlgoI8x8x16Stride2::get_kimpls(
     size_t IC = param.filter_meta.icpg;
     size_t OC = param.filter_meta.ocpg;
     size_t group = fm.group;
+    bool large_group = group >= param.nr_threads;
     WorkspaceBundle bundle = get_bundle(param);
     SmallVector<NCBKern> ret_kerns;
-    if (m_large_group) {
+    if (large_group) {
         auto exec_one_group = [bundle](const NCBKernParam& kern_param,
                                         const NCBKernIndex& ncb_index) mutable {
             auto fm = kern_param.filter_meta;

dnn/src/arm_common/conv_bias/int8x8x16/algos.h

@@ -26,15 +26,10 @@ class ConvBiasImpl::AlgoI8x8x16Direct final : public AlgoBase {
                              const NCBKernParam& kern_param,
                              const NCBKernIndex& ncb_index,
                              const CpuNDRange& workspace_ids);
-    bool m_large_group;
 
 public:
-    AlgoI8x8x16Direct(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "I8816DIRECT_LARGE_GROUP"
-                             : "I8816DIRECT_SMALL_GROUP";
-    }
+    const char* name() const override { return "I8816DIRECT"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
     size_t get_workspace(const NCBKernSizeParam& param) const override;
@@ -53,15 +48,9 @@ class ConvBiasImpl::AlgoI8x8x16Stride2 final : public AlgoBase {
                              const NCBKernParam& kern_param,
                              const NCBKernIndex& ncb_index,
                              const CpuNDRange& workspace_ids);
-    bool m_large_group;
-
 public:
-    AlgoI8x8x16Stride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "I8816STRD2_LARGE_GROUP"
-                             : "I8816STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "I8816STRD2"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 

dnn/src/arm_common/conv_bias/opr_impl.cpp

@@ -40,28 +40,20 @@ uint8_t arm_common_algo_type_storage;
 }  // anonymous namespace
 
 class ConvBiasImpl::AlgoPack : NonCopyableObj {
-    AlgoQU8DirectStride2 qu8_direct_stride2_large_group{true};
-    AlgoQU8DirectStride2 qu8_direct_stride2_small_group{false};
-    AlgoQU8DirectStride1 qu8_direct_stride1_large_group{true};
-    AlgoQU8DirectStride1 qu8_direct_stride1_small_group{false};
-    AlgoS8DirectStride2 s8_direct_stride2_large_group{true};
-    AlgoS8DirectStride2 s8_direct_stride2_small_group{false};
+    AlgoQU8DirectStride2 qu8_direct_stride2;
+    AlgoQU8DirectStride1 qu8_direct_stride1;
+    AlgoS8DirectStride2 s8_direct_stride2;
     AlgoS8DirectNCHW44 s8_direct_nchw44;
     AlgoS8DirectNCHWNCHW44 s8_direct_nchw_nchw44;
-    AlgoS8DirectStride1 s8_direct_stride1_large_group{true};
-    AlgoS8DirectStride1 s8_direct_stride1_small_group{false};
+    AlgoS8DirectStride1 s8_direct_stride1;
     AlgoS8ChanWiseStride1NCHW44 s8_channel_wise_stride1_nchw44;
     AlgoS8ChanWiseStride2NCHW44 s8_channel_wise_stride2_nchw44;
 
 #if __ARM_FEATURE_DOTPROD
-    AlgoDotS8DirectStride1 ds8_direct_stride1_large_group{true};
-    AlgoDotS8DirectStride1 ds8_direct_stride1_small_group{false};
-    AlgoDotS8DirectStride2 ds8_direct_stride2_large_group{true};
-    AlgoDotS8DirectStride2 ds8_direct_stride2_small_group{false};
-    AlgoDotU8DirectStride1 du8_direct_stride1_large_group{true};
-    AlgoDotU8DirectStride1 du8_direct_stride1_small_group{false};
-    AlgoDotU8DirectStride2 du8_direct_stride2_large_group{true};
-    AlgoDotU8DirectStride2 du8_direct_stride2_small_group{false};
+    AlgoDotS8DirectStride1 ds8_direct_stride1;
+    AlgoDotS8DirectStride2 ds8_direct_stride2;
+    AlgoDotU8DirectStride1 du8_direct_stride1;
+    AlgoDotU8DirectStride2 du8_direct_stride2;
 
     AlgoDotS8Direct_NCHW44 ds8_direct_nchw44;
     AlgoDotS8DirectNCHWNCHW44 ds8_direct_nchw_nchw44;
@@ -71,23 +63,16 @@ class ConvBiasImpl::AlgoPack : NonCopyableObj {
     AlgoF32ChannelWiseNCHW44 f32_chanel_wise_nchw44;
     AlgoF32DirectNCHW44 f32_direct_nchw44;
 
-    AlgoF32Direct f32_direct_large_group{true};
-    AlgoF32Direct f32_direct_small_group{false};
-    AlgoF32DirectStride2 f32_direct_stride2_large_group{true};
-    AlgoF32DirectStride2 f32_direct_stride2_small_group{false};
-    AlgoF32DirectStride1 f32_direct_stride1_large_group{true};
-    AlgoF32DirectStride1 f32_direct_stride1_small_group{false};
+    AlgoF32Direct f32_direct;
+    AlgoF32DirectStride2 f32_direct_stride2;
+    AlgoF32DirectStride1 f32_direct_stride1;
 
-    AlgoI8x8x16Direct i8x8x16_direct_large_group{true};
-    AlgoI8x8x16Direct i8x8x16_direct_small_group{false};
-    AlgoI8x8x16Stride2 i8x8x16_stride2_large_group{true};
-    AlgoI8x8x16Stride2 i8x8x16_stride2_small_group{false};
+    AlgoI8x8x16Direct i8x8x16_direct;
+    AlgoI8x8x16Stride2 i8x8x16_stride2;
     AlgoI8x8x16Stride2Filter2 i8x8x16_stride2_filter2;
 #if __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
-    AlgoF16Direct f16_direct_large_group{true};
-    AlgoF16Direct f16_direct_small_group{false};
-    AlgoF16DirectStride1 f16_direct_stride1_large_group{true};
-    AlgoF16DirectStride1 f16_direct_stride1_small_group{false};
+    AlgoF16Direct f16_direct;
+    AlgoF16DirectStride1 f16_direct_stride1;
 #endif
 
     SmallVector<std::unique_ptr<AlgoBase>> refhold;
@@ -95,54 +80,39 @@ class ConvBiasImpl::AlgoPack : NonCopyableObj {
 public:
     AlgoPack() {
 #if __ARM_FEATURE_DOTPROD
-        direct_algos.emplace_back(&ds8_direct_stride1_large_group);
-        direct_algos.emplace_back(&ds8_direct_stride1_small_group);
-        direct_algos.emplace_back(&ds8_direct_stride2_large_group);
-        direct_algos.emplace_back(&ds8_direct_stride2_small_group);
-        direct_algos.emplace_back(&du8_direct_stride1_large_group);
-        direct_algos.emplace_back(&du8_direct_stride1_small_group);
-        direct_algos.emplace_back(&du8_direct_stride2_large_group);
-        direct_algos.emplace_back(&du8_direct_stride2_small_group);
+        direct_algos.emplace_back(&ds8_direct_stride1);
+        direct_algos.emplace_back(&ds8_direct_stride2);
+        direct_algos.emplace_back(&du8_direct_stride1);
+        direct_algos.emplace_back(&du8_direct_stride2);
 
         direct_algos.emplace_back(&ds8_direct_nchw44);
         direct_algos.emplace_back(&ds8_direct_nchw_nchw44);
 #endif
-        direct_algos.emplace_back(&qu8_direct_stride2_large_group);
-        direct_algos.emplace_back(&qu8_direct_stride2_small_group);
-        direct_algos.emplace_back(&qu8_direct_stride1_large_group);
-        direct_algos.emplace_back(&qu8_direct_stride1_small_group);
-        direct_algos.emplace_back(&s8_direct_stride2_large_group);
-        direct_algos.emplace_back(&s8_direct_stride2_small_group);
+        direct_algos.emplace_back(&qu8_direct_stride2);
+        direct_algos.emplace_back(&qu8_direct_stride1);
+        direct_algos.emplace_back(&s8_direct_stride2);
         direct_algos.emplace_back(&s8_direct_nchw44);
         direct_algos.emplace_back(&s8_direct_nchw_nchw44);
-        direct_algos.emplace_back(&s8_direct_stride1_large_group);
-        direct_algos.emplace_back(&s8_direct_stride1_small_group);
+        direct_algos.emplace_back(&s8_direct_stride1);
 
         direct_algos.emplace_back(&s8_channel_wise_stride1_nchw44);
         direct_algos.emplace_back(&s8_channel_wise_stride2_nchw44);
 
 #if __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
-        direct_algos.emplace_back(&f16_direct_stride1_large_group);
-        direct_algos.emplace_back(&f16_direct_stride1_small_group);
-        direct_algos.emplace_back(&f16_direct_large_group);
-        direct_algos.emplace_back(&f16_direct_small_group);
+        direct_algos.emplace_back(&f16_direct_stride1);
+        direct_algos.emplace_back(&f16_direct);
 #endif
-        direct_algos.emplace_back(&i8x8x16_direct_large_group);
-        direct_algos.emplace_back(&i8x8x16_direct_small_group);
+        direct_algos.emplace_back(&i8x8x16_direct);
         direct_algos.emplace_back(&i8x8x16_stride2_filter2);
-        direct_algos.emplace_back(&i8x8x16_stride2_large_group);
-        direct_algos.emplace_back(&i8x8x16_stride2_small_group);
+        direct_algos.emplace_back(&i8x8x16_stride2);
 
         direct_algos.emplace_back(&f32_direct_stride2_nchw_nchw44);
         direct_algos.emplace_back(&f32_chanel_wise_nchw44);
         direct_algos.emplace_back(&f32_direct_nchw44);
 
-        direct_algos.emplace_back(&f32_direct_stride1_large_group);
-        direct_algos.emplace_back(&f32_direct_stride1_small_group);
-        direct_algos.emplace_back(&f32_direct_stride2_large_group);
-        direct_algos.emplace_back(&f32_direct_stride2_small_group);
-        direct_algos.emplace_back(&f32_direct_large_group);
-        direct_algos.emplace_back(&f32_direct_small_group);
+        direct_algos.emplace_back(&f32_direct_stride1);
+        direct_algos.emplace_back(&f32_direct_stride2);
+        direct_algos.emplace_back(&f32_direct);
 
         static CpuOprDelegationStorage<2> storage;
         auto matmul_opr = storage.get<MatrixMul, 0>();

dnn/src/arm_common/conv_bias/quint8/algos.cpp

@@ -25,21 +25,15 @@ using namespace megdnn;
 using namespace arm_common;
 
 /* ===================== stride1 algo ===================== */
-bool ConvBiasImpl::AlgoQU8DirectStride1::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible = direct_quint8_stride1::can_conv_direct_stride1_quint8(param);
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-    return avaible;
+bool ConvBiasImpl::AlgoQU8DirectStride1::usable(const NCBKernSizeParam& param,
+                                                AlgoSelectionStrategy) const {
+    return direct_quint8_stride1::can_conv_direct_stride1_quint8(param);
 }
 
 size_t ConvBiasImpl::AlgoQU8DirectStride1::get_workspace(
         const NCBKernSizeParam& param) const {
-    auto bundle = direct_quint8_stride1::get_bundle(param, m_large_group);
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_quint8_stride1::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -47,7 +41,8 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoQU8DirectStride1::dispatch_kerns(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_quint8, 0, 0) {
-        return direct_quint8_stride1::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_quint8_stride1::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};
@@ -55,20 +50,15 @@ ConvBiasImpl::AlgoQU8DirectStride1::dispatch_kerns(
 
 /* ===================== stride2 algo ===================== */
 bool ConvBiasImpl::AlgoQU8DirectStride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible = direct_quint8_stride2::can_conv_direct_stride2_quint8(param);
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-    return avaible;
+                                                const NCBKernSizeParam& param,
+                                                AlgoSelectionStrategy) const {
+    return direct_quint8_stride2::can_conv_direct_stride2_quint8(param);
 }
 
 size_t ConvBiasImpl::AlgoQU8DirectStride2::get_workspace(
         const NCBKernSizeParam& param) const {
-    auto bundle = direct_quint8_stride2::get_bundle(param, m_large_group);
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_quint8_stride2::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -76,31 +66,23 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoQU8DirectStride2::dispatch_kerns(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_quint8, 0, 1) {
-        return direct_quint8_stride2::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_quint8_stride2::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};
 }
 #if __ARM_FEATURE_DOTPROD
 /* ===================== stride1 algo ===================== */
-bool ConvBiasImpl::AlgoDotU8DirectStride1::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible =
-            direct_dotprod_quint8_stride1::can_conv_direct_stride1_quint8(
-                    param);
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-    return avaible;
+bool ConvBiasImpl::AlgoDotU8DirectStride1::usable(const NCBKernSizeParam& param,
+                                                  AlgoSelectionStrategy) const {
+    return direct_dotprod_quint8_stride1::can_conv_direct_stride1_quint8(param);
 }
 
 size_t ConvBiasImpl::AlgoDotU8DirectStride1::get_workspace(
         const NCBKernSizeParam& param) const {
-    auto bundle =
-            direct_dotprod_quint8_stride1::get_bundle(param, m_large_group);
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_dotprod_quint8_stride1::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -108,31 +90,23 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoDotU8DirectStride1::dispatch_kerns(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_quint8, 1, 0) {
-        return direct_dotprod_quint8_stride1::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_dotprod_quint8_stride1::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};
 }
 
 /* ===================== stride2 algo ===================== */
-bool ConvBiasImpl::AlgoDotU8DirectStride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
-    bool avaible =
-            direct_dotprod_quint8_stride2::can_conv_direct_stride2_quint8(
-                    param);
-    if (algo_selection_strategy ==
-        ConvBiasImpl::AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        avaible &= (large_group == m_large_group);
-    }
-    return avaible;
+bool ConvBiasImpl::AlgoDotU8DirectStride2::usable(const NCBKernSizeParam& param,
+                                                  AlgoSelectionStrategy) const {
+    return direct_dotprod_quint8_stride2::can_conv_direct_stride2_quint8(param);
 }
 
 size_t ConvBiasImpl::AlgoDotU8DirectStride2::get_workspace(
         const NCBKernSizeParam& param) const {
-    auto bundle =
-            direct_dotprod_quint8_stride2::get_bundle(param, m_large_group);
+    bool large_group = param.filter_meta.group >= param.nr_threads;
+    auto bundle = direct_dotprod_quint8_stride2::get_bundle(param, large_group);
     return bundle.total_size_in_bytes();
 }
 
@@ -140,7 +114,8 @@ SmallVector<ConvBiasImpl::NCBKern>
 ConvBiasImpl::AlgoDotU8DirectStride2::dispatch_kerns(
         const NCBKernSizeParam& param) const {
     MIDOUT_BEGIN(megdnn_arm_common_conv_bias_quint8, 1, 1) {
-        return direct_dotprod_quint8_stride2::get_kimpls(param, m_large_group);
+        bool large_group = param.filter_meta.group >= param.nr_threads;
+        return direct_dotprod_quint8_stride2::get_kimpls(param, large_group);
     }
     MIDOUT_END();
     return {};

dnn/src/arm_common/conv_bias/quint8/algos.h

@@ -18,14 +18,10 @@ namespace megdnn {
 namespace arm_common {
 
 class ConvBiasImpl::AlgoQU8DirectStride1 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoQU8DirectStride1(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "QU8STRD1_LARGE_GROUP" : "QU8STRD1_SMALL_GROUP";
-    }
+    const char* name() const override { return "QU8STRD1"; }
 
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
@@ -36,14 +32,10 @@ public:
 };
 
 class ConvBiasImpl::AlgoQU8DirectStride2 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoQU8DirectStride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "QU8STRD2_LARGE_GROUP" : "QU8STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "QU8STRD2"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 
@@ -53,15 +45,10 @@ public:
 };
 #if __ARM_FEATURE_DOTPROD
 class ConvBiasImpl::AlgoDotU8DirectStride1 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoDotU8DirectStride1(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "ARMDOTU8STRD1_LARGE_GROUP"
-                             : "ARMDOTU8STRD1_SMALL_GROUP";
-    }
+    const char* name() const override { return "ARMDOTU8STRD1"; }
 
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
@@ -72,15 +59,10 @@ public:
 };
 
 class ConvBiasImpl::AlgoDotU8DirectStride2 final : public AlgoBase {
-    bool m_large_group;
 
 public:
-    AlgoDotU8DirectStride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
-    const char* name() const override {
-        return m_large_group ? "ARMDOTU8STRD2_LARGE_GROUP"
-                             : "ARMDOTU8STRD2_SMALL_GROUP";
-    }
+    const char* name() const override { return "ARMDOTU8STRD2"; }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
 

dnn/src/x86/conv_bias/f32/algos.cpp

@@ -65,9 +65,10 @@ void get_rectified_size(size_t IH, size_t IW, size_t OH, size_t OW, size_t FH,
     size_t IC = param.filter_meta.icpg;                                        \
     size_t OC = param.filter_meta.ocpg;                                        \
     size_t group = fm.group;                                                   \
+    bool large_group = group >= param.nr_threads;                              \
     WorkspaceBundle bundle = get_bundle(param);                                \
     SmallVector<NCBKern> ret_kerns;                                            \
-    if (m_large_group) {                                                       \
+    if (large_group) {                                                         \
         auto exec_one_group = [bundle](                                        \
                                       const NCBKernParam& kern_param,          \
                                       const NCBKernIndex& ncb_index) mutable { \
@@ -104,22 +105,15 @@ void get_rectified_size(size_t IH, size_t IW, size_t OH, size_t OW, size_t FH,
 
 /* ===================== direct algo ===================== */
 
-bool ConvBiasImpl::AlgoDirect::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoDirect::usable(const NCBKernSizeParam& param,
+                                      AlgoSelectionStrategy) const {
     auto&& fm = param.filter_meta;
-    bool aviliable = fm.format == Param::Format::NCHW && fm.spatial_ndim == 2 &&
-                     param.src_type.enumv() == DTypeEnum::Float32 &&
-                     param.filter_type.enumv() == DTypeEnum::Float32 &&
-                     param.dst_type.enumv() == DTypeEnum::Float32 &&
-                     fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
-                     fm.spatial[0] <= 7 && fm.stride[0] == 1 &&
-                     fm.stride[1] == 1;
-    if (algo_selection_strategy == AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        aviliable &= (large_group == m_large_group);
-    }
-    return aviliable;
+    return fm.format == Param::Format::NCHW && fm.spatial_ndim == 2 &&
+           param.src_type.enumv() == DTypeEnum::Float32 &&
+           param.filter_type.enumv() == DTypeEnum::Float32 &&
+           param.dst_type.enumv() == DTypeEnum::Float32 &&
+           fm.dilation[0] == 1 && fm.dilation[1] == 1 && fm.spatial[0] <= 7 &&
+           fm.stride[0] == 1 && fm.stride[1] == 1;
 }
 WorkspaceBundle ConvBiasImpl::AlgoDirect::get_bundle(
         const NCBKernSizeParam& param) const {
@@ -133,9 +127,10 @@ WorkspaceBundle ConvBiasImpl::AlgoDirect::get_bundle(
     get_rectified_img_size(IH, IW, FH, FW, OH, OW, fm.padding[0], fm.padding[1],
                            IH2, IW2, OH2, OW2);
     size_t part0 = 0u, part1 = 0u;
+    bool large_group = group >= param.nr_threads;
     if (IH != IH2 || IW != IW2) {
-        part0 = m_large_group ? IC * IH2 * IW2 * sizeof(float) * nr_threads
-                              : IC * IH2 * IW2 * sizeof(float) * group * batch;
+        part0 = large_group ? IC * IH2 * IW2 * sizeof(float) * nr_threads
+                            : IC * IH2 * IW2 * sizeof(float) * group * batch;
     }
     if (OH != OH2 || OW != OW2) {
         part1 = OH2 * OW2 * sizeof(float) * nr_threads;
@@ -319,24 +314,17 @@ SmallVector<ConvBiasImpl::NCBKern> ConvBiasImpl::AlgoDirect::get_kimpls(
     GET_KERN;
 }
 /* ===================== direct-stride2 algo ===================== */
-bool ConvBiasImpl::AlgoDirectStride2::usable(
-        const NCBKernSizeParam& param,
-        AlgoSelectionStrategy algo_selection_strategy) const {
+bool ConvBiasImpl::AlgoDirectStride2::usable(const NCBKernSizeParam& param,
+                                             AlgoSelectionStrategy) const {
     auto&& fm = param.filter_meta;
     auto FH = fm.spatial[0];
-    bool aviliable =
-            param.filter_meta.format == param::ConvBias::Format::NCHW &&
-            param.src_type.enumv() == DTypeEnum::Float32 &&
-            param.filter_type.enumv() == DTypeEnum::Float32 &&
-            param.dst_type.enumv() == DTypeEnum::Float32 && !fm.should_flip &&
-            fm.spatial_ndim == 2 && fm.dilation[0] == 1 &&
-            fm.dilation[1] == 1 && fm.stride[0] == 2 && fm.stride[1] == 2 &&
-            FH == fm.spatial[1] && (FH == 2 || FH == 3 || FH == 5 || FH == 7);
-    if (algo_selection_strategy == AlgoSelectionStrategy::HEURISTIC) {
-        bool large_group = param.filter_meta.group >= param.nr_threads;
-        aviliable &= (large_group == m_large_group);
-    }
-    return aviliable;
+    return param.filter_meta.format == param::ConvBias::Format::NCHW &&
+           param.src_type.enumv() == DTypeEnum::Float32 &&
+           param.filter_type.enumv() == DTypeEnum::Float32 &&
+           param.dst_type.enumv() == DTypeEnum::Float32 && !fm.should_flip &&
+           fm.spatial_ndim == 2 && fm.dilation[0] == 1 && fm.dilation[1] == 1 &&
+           fm.stride[0] == 2 && fm.stride[1] == 2 && FH == fm.spatial[1] &&
+           (FH == 2 || FH == 3 || FH == 5 || FH == 7);
 }
 
 WorkspaceBundle ConvBiasImpl::AlgoDirectStride2::get_bundle(
@@ -352,10 +340,10 @@ WorkspaceBundle ConvBiasImpl::AlgoDirectStride2::get_bundle(
     size_t src_size = 0, dst_size = 0;
     size_t IH2, IW2, OH2, OW2;
     get_rectified_size(IH, IW, OH, OW, FH, FW, PH, PW, IH2, IW2, OH2, OW2);
+    bool large_group = group >= param.nr_threads;                              \
     if (need_src_copy(param)) {
-        src_size = m_large_group
-                           ? IC * IH2 * IW2 * sizeof(float) * nr_threads
-                           : IC * IH2 * IW2 * sizeof(float) * group * batch;
+        src_size = large_group ? IC * IH2 * IW2 * sizeof(float) * nr_threads
+                               : IC * IH2 * IW2 * sizeof(float) * group * batch;
     }
     if (need_dst_copy(param)) {
         // we only need one dst plane

dnn/src/x86/conv_bias/f32/algos.h

@@ -29,14 +29,10 @@ class ConvBiasImpl::AlgoDirect final : public AlgoBase {
                              const NCBKernParam& kern_param,
                              const NCBKernIndex& ncb_index,
                              const CpuNDRange& workspace_ids);
-    bool m_large_group;
-
 public:
-    AlgoDirect(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
     const char* name() const override {
-        return m_large_group ? "X86_CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP"
-                             : "X86_CONV_BIAS_DIRECT_STRIDE1_SMALL_GROUP";
+        return "X86_CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP";
     }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;
@@ -65,14 +61,10 @@ class ConvBiasImpl::AlgoDirectStride2 final : public AlgoBase {
                              const NCBKernParam& kern_param,
                              const NCBKernIndex& ncb_index,
                              const CpuNDRange& workspace_ids);
-    bool m_large_group;
-
 public:
-    AlgoDirectStride2(bool large_group) : m_large_group(large_group) {}
     bool is_reproducible() const override { return true; }
     const char* name() const override {
-        return m_large_group ? "X86_CONV_BIAS_DIRECT_STRIDE2_LARGE_GROUP"
-                             : "X86_CONV_BIAS_DIRECT_STRIDE2_SMALL_GROUP";
+        return "X86_CONV_BIAS_DIRECT_STRIDE2_LARGE_GROUP";
     }
     bool usable(const NCBKernSizeParam& param,
                 AlgoSelectionStrategy algo_selection_strategy) const override;

dnn/src/x86/conv_bias/opr_impl.cpp

@@ -76,10 +76,8 @@ void* ConvBiasImpl::AlgoChanWiseAvx2Stride2Qint8::type() const {
 }
 
 class ConvBiasImpl::AlgoPack : NonCopyableObj {
-    AlgoDirect stride1_direct_large_group{true};
-    AlgoDirect stride1_direct_small_group{false};
-    AlgoDirectStride2 stride2_direct_large_group{true};
-    AlgoDirectStride2 stride2_direct_small_group{false};
+    AlgoDirect stride1_direct;
+    AlgoDirectStride2 stride2_direct;
     AlgoDirectAvx2Stride1Int8 avx2_stride1_direct_int8;
     AlgoAVX2DirectConvStride2 avx2_stride2_direct;
     AlgoChanWiseAvx2Stride1Qint8 avx2_stride1_chanwsie_qint8;
@@ -103,10 +101,8 @@ public:
         all_algos.emplace_back(&mkldnn_matmul_qint8);
         all_algos.emplace_back(&mkldnn_qint8);
 #endif
-        all_algos.emplace_back(&stride1_direct_large_group);
-        all_algos.emplace_back(&stride1_direct_small_group);
-        all_algos.emplace_back(&stride2_direct_large_group);
-        all_algos.emplace_back(&stride2_direct_small_group);
+        all_algos.emplace_back(&stride1_direct);
+        all_algos.emplace_back(&stride2_direct);
         all_algos.emplace_back(&avx2_stride1_direct_int8);
         all_algos.emplace_back(&avx2_stride2_direct);
         all_algos.emplace_back(&avx2_stride1_chanwsie_qint8);

dnn/test/aarch64/conv_bias.cpp

@@ -81,15 +81,10 @@ void checker_conv_bias(std::vector<conv_bias::TestArg> args, Handle* handle,
                 {arg.src, arg.filter, arg.bias, {}, {}});
     }
 }
-TEST_F(AARCH64_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR2_LARGE_GROUP) {
+TEST_F(AARCH64_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR2) {
     check_conv_bias(
             conv_bias::get_conv_bias_args({2, 3, 5, 7}, 2, false, false, false),
-            handle(), "ARMV8F32STRD2_LARGE_GROUP");
-}
-TEST_F(AARCH64_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR2_SMALL_GROUP) {
-    check_conv_bias(
-            conv_bias::get_conv_bias_args({2, 3, 5, 7}, 2, false, false, false),
-            handle(), "ARMV8F32STRD2_SMALL_GROUP");
+            handle(), "ARMV8F32STRD2");
 }
 
 #if __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
@@ -114,17 +109,11 @@ void checker_conv_bias_fp16(std::vector<conv_bias::TestArg> args,
     }
 }
 
-TEST_F(AARCH64_MULTI_THREADS, CONVBIAS_DIRECT_FP16_STR2_LARGE_GROUP) {
-    NormalRNG rng(1);
-    checker_conv_bias_f16(
-            conv_bias::get_conv_bias_args({2, 3, 5}, 2, false, false, false),
-            handle(), rng, "ARMV8F16STRD2_LARGE_GROUP", 0.04);
-}
-TEST_F(AARCH64_MULTI_THREADS, CONVBIAS_DIRECT_FP16_STR2_SMALL_GROUP) {
+TEST_F(AARCH64_MULTI_THREADS, CONVBIAS_DIRECT_FP16_STR2) {
     NormalRNG rng(1);
     checker_conv_bias_f16(
             conv_bias::get_conv_bias_args({2, 3, 5}, 2, false, false, false),
-            handle(), rng, "ARMV8F16STRD2_SMALL_GROUP", 0.04);
+            handle(), rng, "ARMV8F16STRD2", 0.04);
 }
 #endif
 

dnn/test/arm_common/conv_bias.cpp

@@ -1310,8 +1310,7 @@ TEST_F(ARM_COMMON, BENCHMARK_CHANNEL_WISE_F32_STRIDE1_NCHW44) {
     benchmark0.set_param(param);
     benchmark0.set_times(RUN);
     benchmark0.set_before_exec_callback(
-            conv_bias::ConvBiasAlgoChecker<ConvBiasForward>(
-                    "F32STRD1_LARGE_GROUP"));
+            conv_bias::ConvBiasAlgoChecker<ConvBiasForward>("F32STRD1"));
 
     auto opr = handle()->create_operator<ConvBias>();
     opr->param() = param;
@@ -1385,8 +1384,7 @@ TEST_F(ARM_COMMON, BENCHMARK_CHANNEL_WISE_F32_STRIDE2_NCHW44) {
     benchmark0.set_param(param);
     benchmark0.set_times(RUN);
     benchmark0.set_before_exec_callback(
-            conv_bias::ConvBiasAlgoChecker<ConvBiasForward>(
-                    "F32STRD2_LARGE_GROUP"));
+            conv_bias::ConvBiasAlgoChecker<ConvBiasForward>("F32STRD2"));
 
     auto opr = handle()->create_operator<ConvBias>();
     opr->param() = param;
@@ -1464,8 +1462,7 @@ TEST_F(ARM_COMMON, BENCHMARK_CONV_BIAS_QINT8_STRIDE1_NCHW44) {
     benchmark0.set_param(param);
     benchmark0.set_times(RUN);
     benchmark0.set_before_exec_callback(
-            conv_bias::ConvBiasAlgoChecker<ConvBiasForward>(
-                    "S8STRD1_LARGE_GROUP"));
+            conv_bias::ConvBiasAlgoChecker<ConvBiasForward>("S8STRD1"));
 
     auto opr = handle()->create_operator<ConvBias>();
     opr->param() = param;

dnn/test/arm_common/conv_bias_multi_thread.cpp

@@ -356,15 +356,10 @@ void checker_conv_bias_int8x8x32_multi(std::vector<conv_bias::TestArg> args,
 }
 
 /**********************************F32 direct************************/
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32) {
     check_conv_bias(
             get_conv_bias_args({1, 2, 3, 4, 5, 6, 7}, 1, false, false, false),
-            handle(), "F32DIRECT_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_SMALL_GROUP) {
-    check_conv_bias(
-            get_conv_bias_args({1, 2, 3, 4, 5, 6, 7}, 1, false, false, false),
-            handle(), "F32DIRECT_SMALL_GROUP");
+            handle(), "F32DIRECT");
 }
 
 TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_NCHW44_S1_K7) {
@@ -391,21 +386,13 @@ TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_NCHW44_S2) {
                     handle(), "F32_CONV_NCHW44_DIRECT");
 }
 
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR1_LARGE_GROUP) {
-    check_conv_bias(get_conv_bias_args({2, 3, 5, 7}, 1, false, false, false),
-                    handle(), "F32STRD1_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR1_SMALL_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR1) {
     check_conv_bias(get_conv_bias_args({2, 3, 5, 7}, 1, false, false, false),
-                    handle(), "F32STRD1_SMALL_GROUP");
+                    handle(), "F32STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR2_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR2) {
     check_conv_bias(get_conv_bias_args({2, 3, 5, 7}, 2, false, false, false),
-                    handle(), "F32STRD2_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP32_STR2_SMALL_GROUP) {
-    check_conv_bias(get_conv_bias_args({2, 3, 5, 7}, 2, false, false, false),
-                    handle(), "F32STRD2_SMALL_GROUP");
+                    handle(), "F32STRD2");
 }
 TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_NCHW_NCHW44_F32_S2) {
     check_conv_bias(get_nchw44_conv_bias_args({2, 3, 5, 7}, 2, false, false,
@@ -437,72 +424,41 @@ TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_CHANNEL_WISE_STRIDE2_FP32_NCHW44) {
 
 /**********************************F16 direct************************/
 #if __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP16_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP16) {
     NormalRNG rng(1);
     checker_conv_bias_f16(
             get_conv_bias_args({1, 2, 3, 4, 5, 6, 7}, 1, false, false, false),
-            handle(), rng, "F16DIRECT_LARGE_GROUP", 0.03);
+            handle(), rng, "F16DIRECT", 0.03);
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP16_SMALL_GROUP) {
-    NormalRNG rng(1);
-    checker_conv_bias_f16(
-            get_conv_bias_args({1, 2, 3, 4, 5, 6, 7}, 1, false, false, false),
-            handle(), rng, "F16DIRECT_SMALL_GROUP", 0.03);
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP16_STR1_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP16_STR1) {
     NormalRNG rng(1);
     checker_conv_bias_f16(get_conv_bias_args({2, 3, 5}, 1, false, false, false),
-                          handle(), rng, "F16STRD1_LARGE_GROUP", 0.03);
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_DIRECT_FP16_STR1_SMALL_GROUP) {
-    NormalRNG rng(1);
-    checker_conv_bias_f16(get_conv_bias_args({2, 3, 5}, 1, false, false, false),
-                          handle(), rng, "F16STRD1_SMALL_GROUP", 0.03);
+                          handle(), rng, "F16STRD1", 0.03);
 }
 #endif
 
 /**********************************algo 8816 direct************************/
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT16_DIRECT_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT16_DIRECT) {
     checker_conv_bias_int8x8x16(
             get_conv_bias_args({2, 3, 5}, 1, false, true, true), handle(),
-            "I8816DIRECT_LARGE_GROUP");
+            "I8816DIRECT");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT16_DIRECT_SMALL_GROUP) {
-    checker_conv_bias_int8x8x16(
-            get_conv_bias_args({2, 3, 5}, 1, false, true, true), handle(),
-            "I8816DIRECT_SMALL_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT16_STRIDE2_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT16_STRIDE2) {
     checker_conv_bias_int8x8x16(
             get_conv_bias_args({2, 3, 5}, 2, false, true, true), handle(),
-            "I8816STRD2_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT16_STRIDE2_SMALL_GROUP) {
-    checker_conv_bias_int8x8x16(
-            get_conv_bias_args({2, 3, 5}, 2, false, true, true), handle(),
-            "I8816STRD2_SMALL_GROUP");
+            "I8816STRD2");
 }
 
 /**********************************algo 8-8-32 direct************************/
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT32_STRIDE1_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT32_STRIDE1) {
     checker_conv_bias_int8x8x32_multi(
             get_conv_bias_args({2, 3, 5, 7}, 1, false, true, true), handle(),
-            "S8STRD1_LARGE_GROUP");
+            "S8STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT32_STRIDE1_SMALL_GROUP) {
-    checker_conv_bias_int8x8x32_multi(
-            get_conv_bias_args({2, 3, 5, 7}, 1, false, true, true), handle(),
-            "S8STRD1_SMALL_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT32_STRIDE2_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT32_STRIDE2) {
     checker_conv_bias_int8x8x32_multi(
             get_conv_bias_args({2, 3, 5, 7}, 2, false, true, true), handle(),
-            "S8STRD2_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_INT8_INT32_STRIDE2_SMALL_GROUP) {
-    checker_conv_bias_int8x8x32_multi(
-            get_conv_bias_args({2, 3, 5, 7}, 2, false, true, true), handle(),
-            "S8STRD2_SMALL_GROUP");
+            "S8STRD2");
 }
 
 TEST_F(ARM_COMMON_MULTI_THREADS,
@@ -520,25 +476,15 @@ TEST_F(ARM_COMMON_MULTI_THREADS,
 }
 
 /********************************qint8 direct******************************/
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE1_LARGE_GROUP) {
-    checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
-                                        {2, 3, 5, 7}, 1, false, false, false),
-                                handle(), "S8STRD1_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE1_SMALL_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE1) {
     checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
                                         {2, 3, 5, 7}, 1, false, false, false),
-                                handle(), "S8STRD1_SMALL_GROUP");
+                                handle(), "S8STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE2_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE2) {
     checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
                                         {2, 3, 5, 7}, 2, false, false, false),
-                                handle(), "S8STRD2_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE2_SMALL_GROUP) {
-    checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
-                                        {2, 3, 5, 7}, 2, false, false, false),
-                                handle(), "S8STRD2_SMALL_GROUP");
+                                handle(), "S8STRD2");
 }
 TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE1_NCHW44) {
     checker_conv_bias_qint8x8x8(
@@ -586,25 +532,15 @@ TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_NCHW_NCHW44_S2) {
 }
 
 /*****************************quint8 direct****************************/
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE1_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE1) {
     checker_conv_bias_quint8x8x8(get_int8_quint8_conv_bias_args(
                                          {2, 3, 5, 7}, 1, false, false, false),
-                                 handle(), "QU8STRD1_LARGE_GROUP");
+                                 handle(), "QU8STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE1_SMALL_GROUP) {
-    checker_conv_bias_quint8x8x8(get_int8_quint8_conv_bias_args(
-                                         {2, 3, 5, 7}, 1, false, false, false),
-                                 handle(), "QU8STRD1_SMALL_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE2_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE2) {
     checker_conv_bias_quint8x8x8(get_int8_quint8_conv_bias_args(
                                          {2, 3, 5, 7}, 2, false, false, false),
-                                 handle(), "QU8STRD2_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE2_SMALL_GROUP) {
-    checker_conv_bias_quint8x8x8(get_int8_quint8_conv_bias_args(
-                                         {2, 3, 5, 7}, 2, false, false, false),
-                                 handle(), "QU8STRD2_SMALL_GROUP");
+                                 handle(), "QU8STRD2");
 }
 
 /****************************dot qint8 direct*************************/
@@ -624,100 +560,53 @@ TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_DOT_NCHW_NCHW44) {
     }
     checker_conv_bias_qint8x8x8(args, handle(), "ARMDOTS8_NCHW_NCHW44");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_INT8_STRIDE1_WITHDOTPROD_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE1_WITHDOTPROD) {
     checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
                                         {2, 3, 5, 7}, 1, false, false, false),
-                                handle(), "ARMDOTS8STRD1_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_INT8_STRIDE1_WITHDOTPROD_SMALL_GROUP) {
-    checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
-                                        {2, 3, 5, 7}, 1, false, false, false),
-                                handle(), "ARMDOTS8STRD1_SMALL_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_INT8_STRIDE2_WITHDOTPROD_LARGE_GROUP) {
-    checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
-                                        {2, 3, 5, 7}, 2, false, false, false),
-                                handle(), "ARMDOTS8STRD2_LARGE_GROUP");
+                                handle(), "ARMDOTS8STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_INT8_STRIDE2_WITHDOTPROD_SMALL_GROUP) {
+
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_INT8_STRIDE2_WITHDOTPROD) {
     checker_conv_bias_qint8x8x8(get_int8_quint8_conv_bias_args(
                                         {2, 3, 5, 7}, 2, false, false, false),
-                                handle(), "ARMDOTS8STRD2_SMALL_GROUP");
+                                handle(), "ARMDOTS8STRD2");
 }
-
 /****************************dot 8-8-32 direct*************************/
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_I8832STRD1_WITHDOT_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_I8832STRD1_WITHDOT) {
     checker_conv_bias_qint8x8x32(
             get_conv_bias_args({2, 3, 5, 7}, 1, false, true, true), handle(),
-            "ARMDOTS8STRD1_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_I8832STRD1_WITHDOT_SMALL_GROUP) {
-    checker_conv_bias_qint8x8x32(
-            get_conv_bias_args({2, 3, 5, 7}, 1, false, true, true), handle(),
-            "ARMDOTS8STRD1_SMALL_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_I8832STRD2_WITHDOT_LARGE_GROUP) {
-    checker_conv_bias_qint8x8x32(
-            get_conv_bias_args({2, 3, 5, 7}, 2, false, true, true), handle(),
-            "ARMDOTS8STRD2_LARGE_GROUP");
+            "ARMDOTS8STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_I8832STRD2_WITHDOT_SMALL_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_I8832STRD2_WITHDOT) {
     checker_conv_bias_qint8x8x32(
             get_conv_bias_args({2, 3, 5, 7}, 2, false, true, true), handle(),
-            "ARMDOTS8STRD2_SMALL_GROUP");
+            "ARMDOTS8STRD2");
 }
 /******************************dot quint8*****************************/
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_QUINT8_STRIDE1_WITHDOTPROD_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE1_WITHDOTPROD) {
     checker_conv_bias_quint8x8x8(get_int8_quint8_conv_bias_args(
                                          {2, 3, 5, 7}, 1, false, false, false),
-                                 handle(), "ARMDOTU8STRD1_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_QUINT8_STRIDE1_WITHDOTPROD_SMALL_GROUP) {
-    checker_conv_bias_quint8x8x8(get_int8_quint8_conv_bias_args(
-                                         {2, 3, 5, 7}, 1, false, false, false),
-                                 handle(), "ARMDOTU8STRD1_SMALL_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_QUINT8_STRIDE2_WITHDOTPROD_LARGE_GROUP) {
-    checker_conv_bias_quint8x8x8(
-            get_int8_quint8_conv_bias_args({2, 5, 7}, 2, false, false, false),
-            handle(), "ARMDOTU8STRD2_LARGE_GROUP");
+                                 handle(), "ARMDOTU8STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS,
-       CONV_BIAS_QUINT8_STRIDE2_WITHDOTPROD_SMALL_GROUP) {
+//! TODO: this test without test kernel size=3, add it will case buss error now
+//! in armv7
+TEST_F(ARM_COMMON_MULTI_THREADS, CONV_BIAS_QUINT8_STRIDE2_WITHDOTPROD) {
     checker_conv_bias_quint8x8x8(
             get_int8_quint8_conv_bias_args({2, 5, 7}, 2, false, false, false),
-            handle(), "ARMDOTU8STRD2_SMALL_GROUP");
+            handle(), "ARMDOTU8STRD2");
 }
 
 /******************************dot quint8x8x32***********************/
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_QUINT8_DIRECT_STRIDE1_LARGE_GROUP) {
-    checker_conv_bias_quint8x8x32(
-            get_conv_bias_args({2, 3, 5, 7}, 1, false, true, true), handle(),
-            "ARMDOTU8STRD1_LARGE_GROUP");
-}
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_QUINT8_DIRECT_STRIDE1_SMALL_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_QUINT8_DIRECT_STRIDE1) {
     checker_conv_bias_quint8x8x32(
             get_conv_bias_args({2, 3, 5, 7}, 1, false, true, true), handle(),
-            "ARMDOTU8STRD1_SMALL_GROUP");
+            "ARMDOTU8STRD1");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_QUINT8_DIRECT_STRIDE2_LARGE_GROUP) {
+TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_QUINT8_DIRECT_STRIDE2) {
     checker_conv_bias_quint8x8x32(
             get_conv_bias_args({2, 3, 5, 7}, 2, false, true, true), handle(),
-            "ARMDOTU8STRD2_LARGE_GROUP");
+            "ARMDOTU8STRD2");
 }
-TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_QUINT8_DIRECT_STRIDE2_SMALL_GROUP) {
-    checker_conv_bias_quint8x8x32(
-            get_conv_bias_args({2, 3, 5, 7}, 2, false, true, true), handle(),
-            "ARMDOTU8STRD2_SMALL_GROUP");
-}
-
 /******************************dot int8x8x8 nchw44 ***********************/
 TEST_F(ARM_COMMON_MULTI_THREADS, CONVBIAS_INT8_DIRECT_DOT_NCHW44_S1_Q8x8x8) {
     using namespace conv_bias;

dnn/test/arm_common/conv_bias_multi_thread_benchmark.cpp

@@ -125,7 +125,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32) {
     bench_case(1, 32, 32, 80, 80, 3, 4);
     bench_case(1, 32, 32, 80, 80, 3, 32);
 
-    std::string algo_name = "F32DIRECT_LARGE_GROUP";
+    std::string algo_name = "F32DIRECT";
     printf("Benchmark F32DIRECT_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Float32(), dtype::Float32(),
                                     dtype::Float32(), dtype::Float32()};
@@ -137,7 +137,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32) {
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "F32DIRECT_SMALL_GROUP";
+    algo_name = "F32DIRECT";
     printf("Benchmark F32DIRECT_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1);
@@ -186,7 +186,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32_STR1) {
     bench_case(1, 32, 32, 80, 80, 3, 4);
     bench_case(1, 32, 32, 80, 80, 3, 32);
 
-    std::string algo_name = "F32STRD1_LARGE_GROUP";
+    std::string algo_name = "F32STRD1";
     printf("Benchmark F32STRD1_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Float32(), dtype::Float32(),
                                     dtype::Float32(), dtype::Float32()};
@@ -198,7 +198,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32_STR1) {
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "F32STRD1_SMALL_GROUP";
+    algo_name = "F32STRD1";
     printf("Benchmark F32STRD1_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1);
@@ -249,7 +249,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32_STR2) {
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 2);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 2);
 
-    std::string algo_name = "F32STRD2_LARGE_GROUP";
+    std::string algo_name = "F32STRD2";
     printf("Benchmark F32STRD2_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Float32(), dtype::Float32(),
                                     dtype::Float32(), dtype::Float32()};
@@ -261,7 +261,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32_STR2) {
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "F32STRD2_SMALL_GROUP";
+    algo_name = "F32STRD2";
     printf("Benchmark F32STRD2_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 2);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 2);
@@ -313,7 +313,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF16) {
     bench_case(1, 32, 32, 80, 80, 3, 4);
     bench_case(1, 32, 32, 80, 80, 3, 32);
 
-    std::string algo_name = "F16DIRECT_LARGE_GROUP";
+    std::string algo_name = "F16DIRECT";
     printf("Benchmark F16DIRECT_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Float16(), dtype::Float16(),
                                     dtype::Float16(), dtype::Float16()};
@@ -325,7 +325,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF16) {
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "F16DIRECT_SMALL_GROUP";
+    algo_name = "F16DIRECT";
     printf("Benchmark F16DIRECT_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1);
@@ -375,7 +375,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF16_STR1) {
     bench_case(1, 32, 32, 80, 80, 3, 4);
     bench_case(1, 32, 32, 80, 80, 3, 32);
 
-    std::string algo_name = "F16STRD1_LARGE_GROUP";
+    std::string algo_name = "F16STRD1";
     printf("Benchmark F16STRD1_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Float16(), dtype::Float16(),
                                     dtype::Float16(), dtype::Float16()};
@@ -387,7 +387,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF16_STR1) {
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "F16STRD1_SMALL_GROUP";
+    algo_name = "F16STRD1";
     printf("Benchmark F16STRD1_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1);
@@ -439,7 +439,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4);
     bench_case(1, 32, 32, 80, 80, 3, 32);
 
-    std::string algo_name = "I8816DIRECT_LARGE_GROUP";
+    std::string algo_name = "I8816DIRECT";
     printf("Benchmark I8816DIRECT_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Int8(), dtype::Int8(),
                                     dtype::Int16(), dtype::Int16()};
@@ -451,7 +451,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "I8816DIRECT_SMALL_GROUP";
+    algo_name = "I8816DIRECT";
     printf("Benchmark I8816DIRECT_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1);
@@ -503,7 +503,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 2);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 2);
 
-    std::string algo_name = "I8816STRD2_LARGE_GROUP";
+    std::string algo_name = "I8816STRD2";
     printf("Benchmark I8816STRD2_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Int8(), dtype::Int8(),
                                     dtype::Int16(), dtype::Int16()};
@@ -515,7 +515,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "I8816STRD2_SMALL_GROUP";
+    algo_name = "I8816STRD2";
     printf("Benchmark I8816STRD2_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 2);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 2);
@@ -567,7 +567,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 1);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 1);
 
-    std::string algo_name = "S8STRD1_LARGE_GROUP";
+    std::string algo_name = "S8STRD1";
     printf("Benchmark S8STRD1_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {
             dtype::QuantizedS8(2.5f), dtype::QuantizedS8(2.5f),
@@ -580,7 +580,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "S8STRD1_SMALL_GROUP";
+    algo_name = "S8STRD1";
     printf("Benchmark S8STRD1_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 1);
@@ -866,7 +866,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 2);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 2);
 
-    std::string algo_name = "S8STRD2_LARGE_GROUP";
+    std::string algo_name = "S8STRD2";
     printf("Benchmark S8STRD2_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {
             dtype::QuantizedS8(2.5f), dtype::QuantizedS8(2.5f),
@@ -879,7 +879,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "S8STRD2_SMALL_GROUP";
+    algo_name = "S8STRD2";
     printf("Benchmark S8STRD2_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 2);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 2);
@@ -932,7 +932,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 1);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 1);
 
-    std::string algo_name = "ARMDOTS8STRD1_LARGE_GROUP";
+    std::string algo_name = "ARMDOTS8STRD1";
     printf("Benchmark ARMDOTS8STRD1_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {
             dtype::QuantizedS8(2.5f), dtype::QuantizedS8(2.5f),
@@ -945,7 +945,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "ARMDOTS8STRD1_SMALL_GROUP";
+    algo_name = "ARMDOTS8STRD1";
     printf("Benchmark ARMDOTS8STRD1_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 1);
@@ -997,7 +997,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 2);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 2);
 
-    std::string algo_name = "ARMDOTS8STRD2_LARGE_GROUP";
+    std::string algo_name = "ARMDOTS8STRD2";
     printf("Benchmark ARMDOTS8STRD2_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {
             dtype::QuantizedS8(2.5f), dtype::QuantizedS8(2.5f),
@@ -1010,7 +1010,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "ARMDOTS8STRD2_SMALL_GROUP";
+    algo_name = "ARMDOTS8STRD2";
     printf("Benchmark ARMDOTS8STRD2_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 2);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 2);
@@ -1064,7 +1064,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 1);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 1);
 
-    std::string algo_name = "QU8STRD1_LARGE_GROUP";
+    std::string algo_name = "QU8STRD1";
     printf("Benchmark QU8STRD1_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Quantized8Asymm(0.2f, 100),
                                     dtype::Quantized8Asymm(0.2f, 120),
@@ -1078,7 +1078,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "QU8STRD1_SMALL_GROUP";
+    algo_name = "QU8STRD1";
     printf("Benchmark QU8STRD1_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 1);
@@ -1130,7 +1130,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 2);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 2);
 
-    std::string algo_name = "QU8STRD2_LARGE_GROUP";
+    std::string algo_name = "QU8STRD2";
     printf("Benchmark QU8STRD2_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Quantized8Asymm(0.2f, 100),
                                     dtype::Quantized8Asymm(0.2f, 120),
@@ -1144,7 +1144,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "QU8STRD2_SMALL_GROUP";
+    algo_name = "QU8STRD2";
     printf("Benchmark QU8STRD2_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 2);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 2);
@@ -1198,7 +1198,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 3, 4, 1, 1);
     bench_case(1, 32, 32, 80, 80, 3, 32, 1, 1);
 
-    std::string algo_name = "ARMDOTU8STRD1_LARGE_GROUP";
+    std::string algo_name = "ARMDOTU8STRD1";
     printf("Benchmark ARMDOTU8STRD1_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Quantized8Asymm(0.2f, 100),
                                     dtype::Quantized8Asymm(0.2f, 120),
@@ -1212,7 +1212,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "ARMDOTU8STRD1_SMALL_GROUP";
+    algo_name = "ARMDOTU8STRD1";
     printf("Benchmark ARMDOTS8STRD1_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1, 1, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1, 1, 1);
@@ -1265,7 +1265,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
     bench_case(1, 32, 32, 80, 80, 5, 4, 1, 2);
     bench_case(1, 32, 32, 80, 80, 5, 32, 1, 2);
 
-    std::string algo_name = "ARMDOTU8STRD2_LARGE_GROUP";
+    std::string algo_name = "ARMDOTU8STRD2";
     printf("Benchmark ARMDOTU8STRD2_LARGE_GROUP algo\n");
     std::vector<DType> data_type = {dtype::Quantized8Asymm(0.2f, 100),
                                     dtype::Quantized8Asymm(0.2f, 120),
@@ -1279,7 +1279,7 @@ TEST_F(ARM_COMMON_BENCHMARK_MULTI_THREADS,
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "ARMDOTU8STRD2_SMALL_GROUP";
+    algo_name = "ARMDOTU8STRD2";
     printf("Benchmark ARMDOTU8STRD2_SMALL_GROUP algo\n");
     bench_case(1, 32, 32, 200, 200, 5, 1, 1, 2);
     bench_case(1, 32, 32, 128, 128, 5, 1, 1, 2);

dnn/test/arm_common/convolution.cpp

@@ -176,7 +176,7 @@ TEST_F(ARM_COMMON, BENCHMARK_CONVOLUTION_STRIDE1_I8x8x32_WITHDOTPROD) {
     constexpr size_t RUN = 50;
     Benchmarker<Convolution> benchmark(handle());
     benchmark.set_before_exec_callback(
-            AlgoChecker<Convolution>("CONVOLUTION_DEFAULT_ARMDOTS8STRD1_SMALL_GROUP"));
+            AlgoChecker<Convolution>("CONVOLUTION_DEFAULT_ARMDOTS8STRD1"));
     benchmark.set_dtype(0, dtype::Int8())
             .set_dtype(1, dtype::Int8())
             .set_dtype(2, dtype::Int32());
@@ -243,7 +243,7 @@ TEST_F(ARM_COMMON, BENCHMARK_CONVOLUTION_STRIDE2_I8x8x32_WITHDOTPROD) {
     constexpr size_t RUN = 10;
     Benchmarker<Convolution> benchmark(handle());
     benchmark.set_before_exec_callback(
-            AlgoChecker<Convolution>("CONVOLUTION_DEFAULT_ARMDOTS8STRD2_SMALL_GROUP"));
+            AlgoChecker<Convolution>("CONVOLUTION_DEFAULT_ARMDOTS8STRD2"));
     benchmark.set_dtype(0, dtype::Int8())
             .set_dtype(1, dtype::Int8())
             .set_dtype(2, dtype::Int32());
@@ -317,7 +317,7 @@ TEST_F(ARM_COMMON, BENCHMARK_CONVOLUTION_STRIDE1_QUINT8_WITHDOTPROD) {
     benchmark.set_display(false);
     benchmark.set_times(RUN);
     benchmark.set_before_exec_callback(AlgoChecker<ConvolutionForward>(
-            "CONVOLUTION_DEFAULT_ARMDOTU8STRD1_SMALL_GROUP"));
+            "CONVOLUTION_DEFAULT_ARMDOTU8STRD1"));
 
     Benchmarker<Convolution> benchmark_float(handle());
     benchmark_float.set_display(false);
@@ -387,7 +387,7 @@ TEST_F(ARM_COMMON, BENCHMARK_CONVOLUTION_STRIDE2_QUINT8_WITHDOTPROD) {
     benchmark.set_display(false);
     benchmark.set_times(RUN);
     benchmark.set_before_exec_callback(AlgoChecker<ConvolutionForward>(
-            "CONVOLUTION_DEFAULT_ARMDOTU8STRD2_SMALL_GROUP"));
+            "CONVOLUTION_DEFAULT_ARMDOTU8STRD2"));
 
     Benchmarker<Convolution> benchmark_float(handle());
     benchmark_float.set_display(false);

dnn/test/x86/conv_bias.cpp

@@ -583,7 +583,7 @@ TEST_F(X86_MULTI_THREADS, AVX2_CONV_BIAS_DIRECT_STRIDE2_S8S8S8) {
     }
 }
 
-TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE1_SMALL_GROUP) {
+TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE1_DENSE) {
     using namespace conv_bias;
     std::vector<TestArg> args;
 
@@ -633,19 +633,19 @@ TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE1_SMALL_GROUP) {
             .set_rng(2, &rng);
     checker.set_before_exec_callback(
             conv_bias::ConvBiasAlgoChecker<ConvBiasForward>(
-                    "X86_CONV_BIAS_DIRECT_STRIDE1_SMALL_GROUP"));
+                    "X86_CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP"));
     for (auto&& arg : args) {
         checker.set_param(arg.param).exec(
                 {arg.src, arg.filter, arg.bias, {}, {}});
     }
 }
 
-TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP) {
+TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE1_GROUP) {
     using namespace conv_bias;
     std::vector<TestArg> args;
 
-    auto run = [&](size_t oc, size_t ic, size_t w, size_t h, size_t kernel,
-                   size_t p, NonlineMode nonline_mode) {
+    auto run = [&](size_t group, size_t channel, size_t w, size_t h,
+                   size_t kernel, size_t p, NonlineMode nonline_mode) {
         if (w + 2 * p < kernel || h + 2 * p < kernel)
             return;
         param::ConvBias param;
@@ -654,30 +654,37 @@ TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP) {
         param.pad_h = p;
         param.pad_w = p;
         param.nonlineMode = nonline_mode;
+        param.sparse = param::ConvBias::Sparse::GROUP;
 
         //! no bias
-        args.emplace_back(param, TensorShape{1, ic, h, w},
-                          TensorShape{oc, ic, kernel, kernel}, TensorShape{});
+        args.emplace_back(
+                param, TensorShape{1, channel, h, w},
+                TensorShape{group, channel / group, channel / group, kernel, kernel},
+                TensorShape{});
         //! bias channel
-        args.emplace_back(param, TensorShape{2, ic, h, w},
-                          TensorShape{oc, ic, kernel, kernel},
-                          TensorShape{1, oc, 1, 1});
+        args.emplace_back(param, TensorShape{2, channel, h, w},
+                          TensorShape{group, channel / group, channel / group,
+                                      kernel, kernel},
+                          TensorShape{1, channel, 1, 1});
         //! bias
-        args.emplace_back(param, TensorShape{2, ic, h, w},
-                          TensorShape{oc, ic, kernel, kernel},
-                          TensorShape{2, oc, (h + param.pad_h * 2 - kernel) + 1,
-                                      (w + param.pad_w * 2 - kernel) + 1});
+        args.emplace_back(
+                param, TensorShape{2, channel, h, w},
+                TensorShape{group, channel / group, channel / group, kernel,
+                            kernel},
+                TensorShape{2, channel, (h + param.pad_h * 2 - kernel) + 1,
+                            (w + param.pad_w * 2 - kernel) + 1});
     };
 
     for (size_t kernel : {1, 2, 3, 4, 5, 6, 7})
-        for (size_t ic : {1, 4, 8, 16})
-            for (size_t oc : {1, 4, 8})
+        for (size_t channel : {4, 8, 16})
+            for (size_t group : {1, 2, 4})
                 for (size_t p : {0, 2})
                     for (size_t size : {20, 21, 24})
                         for (NonlineMode nonline_mode :
                              {NonlineMode::RELU, NonlineMode::SIGMOID,
                               NonlineMode::H_SWISH, NonlineMode::IDENTITY}) {
-                            run(oc, ic, size, size, kernel, p, nonline_mode);
+                            run(group, channel, size, size, kernel, p,
+                                nonline_mode);
                         }
 
     Checker<ConvBias> checker(handle());
@@ -697,7 +704,7 @@ TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP) {
     }
 }
 
-TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE2) {
+TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE2_DENSE) {
     using namespace conv_bias;
     std::vector<TestArg> args;
 
@@ -738,11 +745,68 @@ TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE2) {
             .set_rng(2, &rng);
     checker.set_before_exec_callback(
             conv_bias::ConvBiasAlgoChecker<ConvBiasForward>(
-                    "X86_CONV_BIAS_DIRECT_STRIDE2_SMALL_GROUP"));
+                    "X86_CONV_BIAS_DIRECT_STRIDE2_LARGE_GROUP"));
     for (auto&& arg : args) {
         checker.set_param(arg.param).exec(
                 {arg.src, arg.filter, arg.bias, {}, {}});
     }
+}
+
+TEST_F(X86_MULTI_THREADS, CONV_BIAS_DIRECT_STRIDE2_GROUP) {
+    using namespace conv_bias;
+    std::vector<TestArg> args;
+
+    auto run = [&](size_t group, size_t channel, size_t w, size_t h,
+                   size_t kernel, size_t p, NonlineMode nonline_mode) {
+        if (w + 2 * p < kernel || h + 2 * p < kernel)
+            return;
+        param::ConvBias param;
+        param.stride_h = 2;
+        param.stride_w = 2;
+        param.pad_h = p;
+        param.pad_w = p;
+        param.nonlineMode = nonline_mode;
+        param.sparse = param::ConvBias::Sparse::GROUP;
+
+        //! no bias
+        args.emplace_back(
+                param, TensorShape{1, channel, h, w},
+                TensorShape{group, channel / group, channel / group, kernel, kernel},
+                TensorShape{});
+        //! bias channel
+        args.emplace_back(param, TensorShape{2, channel, h, w},
+                          TensorShape{group, channel / group, channel / group,
+                                      kernel, kernel},
+                          TensorShape{1, channel, 1, 1});
+        //! bias
+        args.emplace_back(
+                param, TensorShape{2, channel, h, w},
+                TensorShape{group, channel / group, channel / group, kernel,
+                            kernel},
+                TensorShape{2, channel, (h + param.pad_h * 2 - kernel) / 2 + 1,
+                            (w + param.pad_w * 2 - kernel) / 2 + 1});
+    };
+
+    for (size_t kernel : {2, 3, 5, 7})
+        for (size_t channel : {4, 8, 16})
+            for (size_t group : {1, 2, 4})
+                for (size_t p : {0, 2})
+                    for (size_t size : {20, 21, 24})
+                        for (NonlineMode nonline_mode :
+                             {NonlineMode::RELU, NonlineMode::SIGMOID,
+                              NonlineMode::H_SWISH, NonlineMode::IDENTITY}) {
+                            run(group, channel, size, size, kernel, p,
+                                nonline_mode);
+                        }
+
+    Checker<ConvBias> checker(handle());
+    UniformIntRNG rng{-50, 50};
+    checker.set_dtype(0, dtype::Float32())
+            .set_dtype(1, dtype::Float32())
+            .set_dtype(2, dtype::Float32())
+            .set_rng(0, &rng)
+            .set_rng(1, &rng)
+            .set_rng(2, &rng);
     checker.set_before_exec_callback(
             conv_bias::ConvBiasAlgoChecker<ConvBiasForward>(
                     "X86_CONV_BIAS_DIRECT_STRIDE2_LARGE_GROUP"));
@@ -2502,7 +2566,7 @@ TEST_F(X86_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32) {
     bench_case(1, 32, 32, 80, 80, 3, 32);
 
     std::string algo_name = "X86_CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP";
-    printf("Benchmark X86_CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP algo\n");
+    printf("Benchmark X86_CONV_BIAS_DIRECT_STRIDE1_GROUP algo\n");
     benchmark_impl(param, shapes_and_computation, algo_name, RUNS,
                    {4, {4, 5, 6, 7}}, {1, {4}}, data_type);
     benchmark_impl(param, shapes_and_computation, algo_name, RUNS,
@@ -2511,8 +2575,8 @@ TEST_F(X86_BENCHMARK_MULTI_THREADS, BENCHMARK_CONVBIAS_DIRECTF32) {
                    {1, {4}}, data_type);
     shapes_and_computation.clear();
 
-    algo_name = "X86_CONV_BIAS_DIRECT_STRIDE1_SMALL_GROUP";
-    printf("Benchmark X86_CONV_BIAS_DIRECT_STRIDE1_SMALL_GROUP algo\n");
+    algo_name = "X86_CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP";
+    printf("Benchmark X86_CONV_BIAS_DIRECT_STRIDE1_DENSE algo\n");
     bench_case(1, 32, 32, 200, 200, 3, 1);
     bench_case(1, 32, 32, 128, 128, 3, 1);
     bench_case(1, 32, 32, 100, 100, 3, 1);

dnn/test/x86/convolution.cpp

@@ -125,7 +125,7 @@ TEST_F(X86, DEFAULT_CONV_DIRECT_STRIDE1) {
 
     Checker<ConvolutionForward> checker(handle());
     checker.set_before_exec_callback(AlgoChecker<ConvolutionForward>(
-            "CONVOLUTION_DEFAULT_X86_CONV_BIAS_DIRECT_STRIDE1_SMALL_GROUP"));
+            "CONVOLUTION_DEFAULT_X86_CONV_BIAS_DIRECT_STRIDE1_LARGE_GROUP"));
     checker.set_epsilon(1);
     UniformIntRNG rng{-50, 50};
     checker.set_dtype(0, dtype::Float32())
@@ -167,7 +167,7 @@ TEST_F(X86, DEFAULT_CONV_DIRECT_STRIDE2) {
 
     Checker<ConvolutionForward> checker(handle());
     checker.set_before_exec_callback(AlgoChecker<ConvolutionForward>(
-            "CONVOLUTION_DEFAULT_X86_CONV_BIAS_DIRECT_STRIDE2_SMALL_GROUP"));
+            "CONVOLUTION_DEFAULT_X86_CONV_BIAS_DIRECT_STRIDE2_LARGE_GROUP"));
     checker.set_epsilon(1);
     UniformIntRNG rng{-50, 50};
     checker.set_dtype(0, dtype::Float32())