add dynamic lstm cell

support kaldi tdnn-lstm

support logsoftmax

add ifdefined op

add dynamic lstm docs

docs/development/dynamic_lstm.md

+Dynamic LSTM
+==================
+
+
+The DynamicLSTM in MACE is implemented for Kaldi's time delay RNN models.
+
+The following pictures explain how to fuse components into a DynamicLSTMCell.
+
+Before fusing:
+
+<div  align="left">
+<img src="imgs/FuseLSTM.png" width = "320" height = "960" alt="how to fuse lstm" />
+</div>
+
+
+After fusing:
+
+<div  align="left">
+<img src="imgs/DynamicLSTM.png" width = "358" height = "391" alt="DynamicLSTM" />
+</div>
+
+
+For more details about LSTMNonlinear in Kaldi,
+please refer to [LstmNonlinearComponent](http://kaldi-asr.org/doc/nnet-simple-component_8h_source.html#l02164)
\ No newline at end of file

mace/benchmark/statistics.cc

@@ -131,6 +131,9 @@ int64_t StatMACs(const std::string &op_type,
                                output_shape.end(),
                                1,
                                std::multiplies<int64_t>());
+  } else if (op_type == "DynamicLSTM") {
+    macs = output_shape[0] * (filter_shape[0] * filter_shape[1]
+        + output_shape[1] * filter_shape[0] / 4);
   }
   return macs;
 }

mace/ops/arm/fp32/gemv.cc

@@ -48,8 +48,8 @@ MaceStatus Gemv::Compute(const OpContext *context,
                          Tensor *output) {
   MACE_UNUSED(context);
 
-  MACE_CHECK(output->size() == batch * lhs_height,
-             "Need resize output tensor before call gemv.");
+  MACE_CHECK(output->size() >= batch * lhs_height,
+             "Output buffer is not large enough for computing gemv.");
 
   Tensor::MappingGuard lhs_guard(lhs);
   Tensor::MappingGuard rhs_guard(rhs);

mace/ops/common/lstm.cc

+// Copyright 2019 The MACE Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Details are in
+// http://kaldi-asr.org/doc/nnet-simple-component_8h_source.html#l02164
+
+#include "mace/ops/common/lstm.h"
+#include "mace/utils/math.h"
+
+namespace mace {
+namespace ops {
+
+void LSTMNonlinearKernel(const float *input_data,
+                         const float *prev_data,
+                         const float *scale_data,
+                         const float *params_data,
+                         bool embed_scales,
+                         index_t params_stride,
+                         index_t cell_dim,
+                         float *output_cell,
+                         float *output_data) {
+  float i_scale = (embed_scales && scale_data) ? scale_data[0] : 1.0f;
+  float f_scale = (embed_scales && scale_data) ? scale_data[1] : 1.0f;
+  float o_scale = (embed_scales && scale_data) ? scale_data[2] : 1.0f;
+
+  if (prev_data == nullptr) {
+#pragma omp parallel for schedule(runtime)
+    for (int c = 0; c < cell_dim; ++c) {
+      float i_part = input_data[c];
+      float c_part = input_data[c + 2 * cell_dim];
+      float o_part = input_data[c + 3 * cell_dim];
+      float w_oc = params_data[c + params_stride * 2];
+      float i_t = ScalarSigmoid(i_part);
+      float c_t = i_t * i_scale * std::tanh(c_part);
+      float o_t = ScalarSigmoid(o_part + w_oc * c_t);
+      float m_t = o_t * o_scale * std::tanh(c_t);
+      output_cell[c] = c_t;
+      output_data[c] = m_t;
+    }
+  } else {
+#pragma omp parallel for schedule(runtime)
+    for (int c = 0; c < cell_dim; ++c) {
+      float i_part = input_data[c];
+      float f_part = input_data[c + cell_dim];
+      float c_part = input_data[c + 2 * cell_dim];
+      float o_part = input_data[c + 3 * cell_dim];
+      float c_prev = prev_data[c];
+      float w_ic = params_data[c];
+      float w_fc = params_data[c + params_stride];
+      float w_oc = params_data[c + params_stride * 2];
+      float i_t = ScalarSigmoid(i_part + w_ic * c_prev);
+      float f_t = ScalarSigmoid(f_part + w_fc * c_prev);
+      float c_t =
+          f_t * f_scale * c_prev + i_t * i_scale * std::tanh(c_part);
+      float o_t = ScalarSigmoid(o_part + w_oc * c_t);
+      float m_t = o_t * o_scale * std::tanh(c_t);
+      output_cell[c] = c_t;
+      output_data[c] = m_t;
+    }
+  }
+}
+
+}  // namespace ops
+}  // namespace mace

mace/ops/common/lstm.h

+// Copyright 2019 The MACE Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef MACE_OPS_COMMON_LSTM_H_
+#define MACE_OPS_COMMON_LSTM_H_
+
+#include "mace/core/types.h"
+namespace mace {
+namespace ops {
+
+void LSTMNonlinearKernel(const float *input_data,
+                         const float *prev_data,
+                         const float *scale_data,
+                         const float *params_data,
+                         bool embed_scales,
+                         index_t params_stride,
+                         index_t cell_dim,
+                         float *output_cell,
+                         float *output_data);
+
+
+}  // namespace ops
+}  // namespace mace
+
+#endif  // MACE_OPS_COMMON_LSTM_H_
+

mace/ops/dynamic_lstm.cc

+// Copyright 2018 The MACE Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This Op is for Fused-LstmNonlinearComponent
+// with prev cell states as inputs in Kaldi.
+// http://kaldi-asr.org/doc/nnet-simple-component_8h_source.html#l02164
+// More details are in docs/development/dynamic_lstm.md
+
+#include <functional>
+#include <memory>
+
+#include "mace/core/operator.h"
+#include "mace/ops/common/lstm.h"
+
+#ifdef MACE_ENABLE_NEON
+#include <arm_neon.h>
+#include "mace/ops/arm/fp32/gemv.h"
+#else
+#include "mace/ops/ref/gemv.h"
+#endif  // MACE_ENABLE_NEON
+
+namespace mace {
+namespace ops {
+
+template <DeviceType D, typename T>
+class DynamicLSTMOp;
+
+template <typename T>
+class DynamicLSTMOp<DeviceType::CPU, T> : public Operation {
+ public:
+  explicit DynamicLSTMOp(OpConstructContext *context)
+      : Operation(context),
+        prev_out_delay_(
+            Operation::GetOptionalArg<int>("prev_out_delay", 0)),
+        prev_cell_delay_(
+            Operation::GetOptionalArg<int>("prev_cell_delay", 0)),
+        prev_out_offset_(Operation::GetOptionalArg<int>("prev_out_offset", 0)),
+        prev_out_dim_(Operation::GetOptionalArg<int>("prev_out_dim", 0)),
+        prev_cell_dim_(Operation::GetOptionalArg<int>("prev_cell_dim", 0)),
+        has_bias_a_(Operation::GetOptionalArg<int>("bias_a", 1)),
+        has_bias_b_(Operation::GetOptionalArg<int>("bias_b", 1)),
+        scale_(Operation::GetOptionalArg<float>("scale", 1.0f)) {}
+
+  void UpdateCell(float *cell_data,
+                  const index_t cell_dim,
+                  const float scale) {
+    if (std::abs(scale - 1.f) < 1e-6)
+      return;
+    const index_t rounds = cell_dim / 4;
+#pragma omp parallel for schedule(runtime)
+    for (index_t i = 0; i < rounds * 4; i += 4) {
+#ifdef MACE_ENABLE_NEON
+      float32x4_t in_vec = vld1q_f32(cell_data + i);
+      float32x4_t scale_vec = vdupq_n_f32(scale);
+      in_vec = vmulq_f32(in_vec, scale_vec);
+      vst1q_f32(cell_data + i, in_vec);
+#else
+      for (int j = 0; j < 4; ++j) {
+        cell_data[i + j] *= scale;
+      }
+#endif
+    }
+    for (index_t i = rounds * 4; i < cell_dim; ++i) {
+      cell_data[i] *= scale;
+    }
+  }
+
+  void CopyAndUpdateCell(float *src_data,
+                         const index_t cell_dim,
+                         const float scale,
+                         float *cell_data) {
+    if (std::abs(scale - 1.f) < 1e-6) {
+      memcpy(cell_data, src_data, cell_dim * sizeof(float));
+      return;
+    }
+
+    const index_t rounds = cell_dim / 4;
+#pragma omp parallel for schedule(runtime)
+    for (index_t i = 0; i < rounds * 4; i += 4) {
+#ifdef MACE_ENABLE_NEON
+      float32x4_t in_vec = vld1q_f32(src_data + i);
+      float32x4_t scale_vec = vdupq_n_f32(scale);
+      in_vec = vmulq_f32(in_vec, scale_vec);
+      vst1q_f32(cell_data + i, in_vec);
+#else
+      for (int j = 0; j < 4; ++j) {
+        cell_data[i + j] = src_data[i + j] * scale;
+      }
+#endif
+    }
+    for (index_t i = rounds * 4; i < cell_dim; ++i) {
+      cell_data[i] = src_data[i] * scale;
+    }
+  }
+
+  MaceStatus Run(OpContext *context) override {
+    MACE_UNUSED(context);
+    int max_input_num = 4;
+    MACE_CHECK(this->InputSize() >= max_input_num,
+               "DynamicLSTM has at least four inputs.");
+    MACE_CHECK(prev_cell_delay_ < 0 && prev_out_delay_ < 0);
+    MACE_CHECK(prev_out_dim_ > 0 && prev_cell_dim_ > 0);
+    const Tensor *input = this->Input(INPUT);
+    const Tensor *weights_a = this->Input(WEIGHTS_A);
+    const Tensor *lstm_params = this->Input(PARAMS);
+    const Tensor *weights_b = this->Input(WEIGHTS_B);
+    if (has_bias_a_) {
+      max_input_num++;
+      MACE_CHECK(this->InputSize() >= max_input_num,
+                 "The first affine needs a bias input.");
+    }
+    const Tensor *bias_a = has_bias_a_ ?
+                           this->Input(max_input_num - 1) :
+                           nullptr;
+    if (has_bias_b_) {
+      max_input_num++;
+      MACE_CHECK(this->InputSize() >= max_input_num,
+                 "The second affine needs a bias input.");
+    }
+    const Tensor *bias_b = has_bias_b_ ?
+                           this->Input(max_input_num - 1) :
+                           nullptr;
+
+    const index_t input_rank = input->dim_size();
+    MACE_CHECK(input_rank >= 2,
+               "Dynamic LSTM Cell's input dim size should be >= 2.");
+    const std::vector<index_t> &input_shape = input->shape();
+    const index_t batch =
+        std::accumulate(input_shape.begin(), input_shape.end() - 2, 1,
+                        std::multiplies<index_t>());
+    const index_t chunk = input_shape[input_rank - 2];
+    const index_t input_dim = input_shape[input_rank - 1];
+
+    const index_t affine_a_in_dim = input_dim + prev_out_dim_;
+    const index_t affine_a_out_dim = weights_a->dim(0);
+    const index_t affine_a_depth = weights_a->dim(1);
+    MACE_CHECK(affine_a_in_dim == affine_a_depth)
+      << "affine_a's input_dim:" << affine_a_in_dim
+      << "!=" << "affine_a's weights' depth:" << affine_a_depth << std::endl;
+
+    const index_t lstm_input_dim = affine_a_out_dim + prev_cell_dim_;
+    const index_t lstm_cell_dim = lstm_input_dim / 5;
+    const index_t params_stride = lstm_params->dim(1);
+    MACE_CHECK(lstm_input_dim == (lstm_cell_dim * 5));
+    MACE_CHECK(lstm_params->dim(0) == 3 &&
+        params_stride == lstm_cell_dim && lstm_cell_dim == prev_cell_dim_)
+      << "lstm params rows:" << lstm_params->dim(0)
+      << "params_stride:"<< params_stride
+      << "!=" << "cell_dim:"<< lstm_cell_dim << std::endl;
+    const index_t affine_b_out_dim = weights_b->dim(0);
+    const index_t affine_b_depth = weights_b->dim(1);
+    const index_t affine_b_in_dim = lstm_cell_dim;
+    MACE_CHECK(affine_b_in_dim == affine_b_depth)
+      << "affine_b's input_dim:" << affine_b_in_dim
+      << "!=" << "affine_b's weights' depth:" << affine_b_depth << std::endl;
+
+    const index_t output_dim = affine_b_out_dim;
+    MACE_CHECK(prev_out_offset_ + prev_out_dim_ <= output_dim);
+
+    const index_t affine_a_in_size =
+        PadAlignSize(affine_a_in_dim * sizeof(float));
+    const index_t affine_a_out_size =
+        PadAlignSize(affine_a_out_dim * sizeof(float));
+    const index_t affine_b_in_size =
+        PadAlignSize(affine_b_in_dim * sizeof(float));
+    const index_t affine_b_out_size =
+        PadAlignSize(affine_b_out_dim * sizeof(float));
+
+    const int out_buf_chunk = abs(prev_out_delay_);
+    const int cell_buf_chunk = abs(prev_cell_delay_);
+    const index_t out_buf_size =
+        PadAlignSize(out_buf_chunk * prev_out_dim_ * sizeof(float));
+    const index_t cell_buf_size =
+        PadAlignSize(cell_buf_chunk * prev_cell_dim_ * sizeof(float));
+    ScratchBuffer *scratch = context->device()->scratch_buffer();
+    scratch->Rewind();
+    scratch->GrowSize(affine_a_in_size + affine_a_out_size
+                          + affine_b_in_size + affine_b_out_size
+                          + out_buf_size + cell_buf_size);
+
+    Tensor prev_out(scratch->Scratch(out_buf_size), DT_FLOAT);
+    prev_out.Reshape({out_buf_chunk, prev_out_dim_});
+    float *prev_out_data = prev_out.mutable_data<float>();
+
+    Tensor prev_cell(scratch->Scratch(cell_buf_size), DT_FLOAT);
+    prev_cell.Reshape({cell_buf_chunk, prev_cell_dim_});
+    float *prev_cell_data = prev_cell.mutable_data<float>();
+
+    Tensor affine_a_in(scratch->Scratch(affine_a_in_size), DT_FLOAT);
+    affine_a_in.Reshape({1, affine_a_in_dim});
+    float *affine_a_in_data = affine_a_in.mutable_data<float>();
+
+    Tensor affine_a_out(scratch->Scratch(affine_a_out_size), DT_FLOAT);
+    affine_a_out.Reshape({1, affine_a_out_dim});
+    float *affine_a_out_data = affine_a_out.mutable_data<float>();
+
+    Tensor affine_b_in(scratch->Scratch(affine_b_in_size), DT_FLOAT);
+    affine_b_in.Reshape({1, affine_b_in_dim});
+    float *affine_b_in_data = affine_b_in.mutable_data<float>();
+
+    Tensor affine_b_out(scratch->Scratch(affine_b_out_size), DT_FLOAT);
+    affine_b_out.Reshape({1, affine_b_out_dim});
+    float *affine_b_out_data = affine_b_out.mutable_data<float>();
+
+    Tensor *output = this->Output(OUTPUT);
+
+    std::vector<index_t> output_shape = input->shape();
+    output_shape[1] = output_dim;
+
+    MACE_RETURN_IF_ERROR(output->Resize(output_shape));
+
+    Tensor::MappingGuard input_guard(input);
+    Tensor::MappingGuard lstm_params_guard(lstm_params);
+    Tensor::MappingGuard output_guard(output);
+    const float *input_data = input->data<float>();
+    const float *lstm_params_data = lstm_params->data<float>();
+    float *output_data = output->mutable_data<float>();
+
+    for (int b = 0; b < batch; ++b) {
+      int prev_out_idx = prev_out_delay_;
+      int prev_cell_idx = prev_cell_delay_;
+      prev_cell.Clear();
+      prev_out.Clear();
+      affine_a_in.Clear();
+      affine_a_out.Clear();
+      affine_b_in.Clear();
+      affine_b_out.Clear();
+      for (int i = 0; i < chunk; ++i) {
+        // Append
+        memcpy(affine_a_in_data, input_data, input_dim * sizeof(float));
+        if (prev_out_idx >= 0) {
+          memcpy(affine_a_in_data + input_dim,
+                 prev_out_data + prev_out_idx % out_buf_chunk * prev_out_dim_,
+                 prev_out_dim_ * sizeof(float));
+        }
+        // Affine
+        gemv_.Compute(context,
+                      weights_a,
+                      &affine_a_in,
+                      bias_a,
+                      1,
+                      affine_a_out_dim,
+                      affine_a_depth,
+                      false,
+                      false,
+                      &affine_a_out);
+        // Prepare LSTMNonlinear input and output pointer
+        float *prev_cell_ptr =
+            prev_cell_idx < 0 ? nullptr :
+            prev_cell_data + prev_cell_idx % cell_buf_chunk * prev_cell_dim_;
+        float *curr_cell_ptr =
+            prev_cell_data + i % cell_buf_chunk * prev_cell_dim_;
+        // LSTMNonlinear
+        LSTMNonlinearKernel(affine_a_out_data,
+                            prev_cell_ptr,
+                            nullptr,
+                            lstm_params_data,
+                            false,
+                            params_stride,
+                            lstm_cell_dim,
+                            curr_cell_ptr,
+                            affine_b_in_data);
+        UpdateCell(curr_cell_ptr, prev_cell_dim_, scale_);
+        // Affine
+        gemv_.Compute(context,
+                      weights_b,
+                      &affine_b_in,
+                      bias_b,
+                      1,
+                      affine_b_out_dim,
+                      affine_b_depth,
+                      false,
+                      false,
+                      &affine_b_out);
+        // Output
+        memcpy(output_data,
+               affine_b_out_data,
+               output_dim * sizeof(float));
+        // Update
+        float *curr_out_ptr = prev_out_data + i % out_buf_chunk * prev_out_dim_;
+        CopyAndUpdateCell(affine_b_out_data + prev_out_offset_,
+                          prev_out_dim_,
+                          scale_,
+                          curr_out_ptr);
+        input_data += input_dim;
+        output_data += output_dim;
+        prev_out_idx++;
+        prev_cell_idx++;
+      }
+    }
+
+    return MaceStatus::MACE_SUCCESS;
+  }
+
+ private:
+  int prev_out_delay_;
+  int prev_cell_delay_;
+  int prev_out_offset_;
+  int prev_out_dim_;
+  int prev_cell_dim_;
+  int has_bias_a_;
+  int has_bias_b_;
+  float scale_;
+
+#ifdef MACE_ENABLE_NEON
+  arm::fp32::Gemv gemv_;
+#else
+  ref::Gemv<float> gemv_;
+#endif  // MACE_ENABLE_NEON
+
+  MACE_OP_INPUT_TAGS(INPUT, WEIGHTS_A, PARAMS, WEIGHTS_B);
+  MACE_OP_OUTPUT_TAGS(OUTPUT);
+};
+
+void RegisterDynamicLSTM(OpRegistryBase *op_registry) {
+  MACE_REGISTER_OP(op_registry, "DynamicLSTM", DynamicLSTMOp,
+                   DeviceType::CPU, float);
+}
+
+}  // namespace ops
+}  // namespace mace

mace/ops/dynamic_lstm_benchmark.cc

+// Copyright 2018 The MACE Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "mace/benchmark/statistics.h"
+#include "mace/core/testing/test_benchmark.h"
+#include "mace/ops/lstmcell_test_util.h"
+#include "mace/ops/ops_test_util.h"
+
+namespace mace {
+namespace ops {
+namespace test {
+
+namespace {
+template <DeviceType D, typename T>
+void DynamicLSTM(int iters,
+                 int chunk,
+                 int input_dim,
+                 int output_dim,
+                 int cell_dim,
+                 int prev_out_dim,
+                 int delay) {
+  mace::testing::StopTiming();
+
+  OpsTestNet net;
+  MACE_CHECK(prev_out_dim <= output_dim);
+  const int weights_a_rows = 4 * cell_dim;
+  const int weights_a_cols = input_dim + prev_out_dim;
+  const int bias_a_rows = weights_a_rows;
+
+  const int weights_b_rows = output_dim;
+  const int weights_b_cols = cell_dim;
+  const int bias_b_rows = weights_b_rows;
+
+  // Add input data
+  net.AddRandomInput<D, float>("Input", {chunk, input_dim});
+  net.AddRandomInput<D, float>("Weight_A",
+                               {weights_a_rows, weights_a_cols},
+                               true);
+  net.AddRandomInput<D, float>("Params",
+                               {3, cell_dim},
+                               true);
+  net.AddRandomInput<D, float>("Weight_B",
+                               {weights_b_rows, weights_b_cols},
+                               true);
+  net.AddRandomInput<D, float>("Bias_A", {bias_a_rows}, true);
+  net.AddRandomInput<D, float>("Bias_B", {bias_b_rows}, true);
+
+  if (D == DeviceType::CPU) {
+    OpDefBuilder("DynamicLSTM", "DynamicLSTMTest")
+        .Input("Input")
+        .Input("Weight_A")
+        .Input("Params")
+        .Input("Weight_B")
+        .Input("Bias_A")
+        .Input("Bias_B")
+        .Output("Output")
+        .AddIntArg("prev_out_delay", -delay)
+        .AddIntArg("prev_cell_delay", -delay)
+        .AddIntArg("prev_out_dim", prev_out_dim)
+        .AddIntArg("prev_cell_dim", cell_dim)
+        .AddIntArg("T", static_cast<int>(DataTypeToEnum<T>::value))
+        .Finalize(net.NewOperatorDef());
+  }  else {
+    MACE_NOT_IMPLEMENTED;
+  }
+
+  // Warm-up
+  for (int i = 0; i < 5; ++i) {
+    net.RunOp(D);
+  }
+  net.Sync();
+
+  mace::testing::StartTiming();
+  while (iters--) {
+    net.RunOp(D);
+  }
+  net.Sync();
+}
+}  // namespace
+
+#define MACE_BM_DYNAMIC_LSTM_MACRO(                                           \
+    N, ID, OD, CD, POD, DELAY, TYPE, DEVICE)                                  \
+  static void                                                                 \
+      MACE_BM_DYNAMIC_LSTM_##N##_##ID##_##OD##_##CD##_##POD##_##DELAY##_##TYPE\
+        ##_##DEVICE(                                                          \
+        int iters) {                                                          \
+    int64_t wa_size = 4 * CD * (ID + POD);                                    \
+    int64_t wb_size = OD * CD;                                                \
+    int64_t prev_size = DELAY * (POD + CD);                                   \
+    int64_t in_out_size = N * (ID + OD);                                      \
+    int64_t bias_size = 4 * CD + OD;                                          \
+    const int64_t macs = static_cast<int64_t>(iters) *                        \
+        mace::benchmark::StatMACs("DynamicLSTM", {4 * CD, ID + POD}, {N, OD});\
+    const int64_t tot = static_cast<int64_t>(iters) * (in_out_size + prev_size\
+      + wa_size + wb_size + bias_size);                                       \
+    mace::testing::MacsProcessed(macs);                                       \
+    mace::testing::BytesProcessed(tot * (sizeof(TYPE)));                      \
+    DynamicLSTM<DEVICE, TYPE>(iters, N, ID, OD, CD, POD, DELAY);              \
+  }                                                                           \
+  MACE_BENCHMARK(                                                             \
+      MACE_BM_DYNAMIC_LSTM_##N##_##ID##_##OD##_##CD##_##POD##_##DELAY         \
+        ##_##TYPE##_##DEVICE)
+
+#define MACE_BM_DYNAMIC_LSTM(N, ID, OD, CD, POD, DELAY)                       \
+  MACE_BM_DYNAMIC_LSTM_MACRO(N, ID, OD, CD, POD, DELAY, float, CPU);
+
+MACE_BM_DYNAMIC_LSTM(50, 184, 128, 184, 64, 3);
+MACE_BM_DYNAMIC_LSTM(50, 64, 256, 64, 128,  3);
+MACE_BM_DYNAMIC_LSTM(80, 64, 256, 128, 64, 3);
+
+}  // namespace test
+}  // namespace ops
+}  // namespace mace

mace/ops/lstm_nonlinear.cc

+// Copyright 2018 The MACE Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This Op is for LstmNonlinearComponent in Kaldi.
+// http://kaldi-asr.org/doc/nnet-simple-component_8h_source.html#l02164
+
+#include <functional>
+#include <memory>
+
+#include "mace/core/operator.h"
+#include "mace/ops/common/lstm.h"
+
+namespace mace {
+namespace ops {
+
+template <DeviceType D, typename T>
+class LSTMNonlinearOp;
+
+template <typename T>
+class LSTMNonlinearOp<DeviceType::CPU, T> : public Operation {
+ public:
+  explicit LSTMNonlinearOp(OpConstructContext *context)
+      : Operation(context) {}
+
+  MaceStatus Run(OpContext *context) override {
+    MACE_UNUSED(context);
+    const Tensor *input = this->Input(INPUT);
+    MACE_CHECK(this->InputSize() >= 2,
+               "LSTMNonlinear should have at least 2 inputs.");
+    const Tensor *params = this->Input(PARAMS);
+    Tensor *output = this->Output(OUTPUT);
+
+    MACE_CHECK(input->dim_size() >= 2)
+      << "The input dim size should >= 2";
+    MACE_CHECK(params->dim_size() == 2)
+      << "The params dim size should be 2";
+    return Compute(input, params, output);
+  }
+
+  MaceStatus Compute(const Tensor *input,
+                     const Tensor *params,
+                     Tensor *output) {
+    const std::vector<index_t> &input_shape = input->shape();
+    const std::vector<index_t> &params_shape = params->shape();
+
+    const index_t num_rows =
+        std::accumulate(input_shape.begin(), input_shape.end() - 1, 1,
+                        std::multiplies<index_t>());
+    index_t rank = input->dim_size();
+    const index_t input_cols = input_shape[rank - 1];
+    const index_t cell_dim = input_cols / 5;
+    bool embed_scales = input_cols == cell_dim * 5 + 3;
+    const index_t params_stride = params_shape[1];
+
+    MACE_CHECK(input_cols == (cell_dim * 5) || embed_scales);
+    MACE_CHECK(params_shape[0] == 3 && params_shape[1] == cell_dim);
+
+    const index_t output_dim = cell_dim * 2;
+    std::vector<index_t> output_shape = input->shape();
+    output_shape[rank - 1] = output_dim;
+    MACE_RETURN_IF_ERROR(output->Resize(output_shape));
+
+    Tensor::MappingGuard input_guard(input);
+    Tensor::MappingGuard params_guard(params);
+    Tensor::MappingGuard output_guard(output);
+    const float *input_data = input->data<T>();
+    const float *params_data = params->data<T>();
+    float *output_data = output->mutable_data<T>();
+#pragma omp parallel for schedule(runtime)
+    for (int r = 0; r < num_rows; ++r) {
+      const float *input_row = input_data + r * input_cols;
+      const float *prev_row = input_row + 4 * cell_dim;
+      const float *scale_data =
+          embed_scales ? prev_row + cell_dim : nullptr;
+      float *output_cell = output_data + r * output_dim;
+      float *output_row = output_cell + cell_dim;
+      LSTMNonlinearKernel(input_row,
+                          prev_row,
+                          scale_data,
+                          params_data,
+                          embed_scales,
+                          params_stride,
+                          cell_dim,
+                          output_cell,
+                          output_row);
+    }
+
+    return MaceStatus::MACE_SUCCESS;
+  }
+
+ protected:
+  MACE_OP_INPUT_TAGS(INPUT, PARAMS);
+  MACE_OP_OUTPUT_TAGS(OUTPUT);
+};
+
+void RegisterLSTMNonlinear(OpRegistryBase *op_registry) {
+  MACE_REGISTER_OP(op_registry, "LSTMNonlinearOp", LSTMNonlinearOp,
+                   DeviceType::CPU, float);
+}
+
+}  // namespace ops
+}  // namespace mace

mace/ops/time_offset_benchmark.cc → mace/ops/lstm_nonlinear_benchmark.cc

@@ -12,10 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <string>
-#include <vector>
-
 #include "mace/core/testing/test_benchmark.h"
+#include "mace/ops/lstmcell_test_util.h"
 #include "mace/ops/ops_test_util.h"
 
 namespace mace {
@@ -23,22 +21,31 @@ namespace ops {
 namespace test {
 
 namespace {
-template<DeviceType D, typename T>
-void TimeOffsetBenchmark(int iters,
-                         std::vector<index_t> shape,
-                         int offset) {
+template <DeviceType D, typename T>
+void LSTMNonlinear(int iters,
+                   int batch,
+                   int input_dim) {
   mace::testing::StopTiming();
 
   OpsTestNet net;
 
-  // Add input data
-  net.AddRandomInput<D, float>("Input", shape);
+  int cell_dim = input_dim / 5;
 
-  OpDefBuilder("TimeOffset", "TimeOffsetBM")
-    .Input("Input")
-    .Output("Output")
-    .AddIntArg("offset", offset)
-    .Finalize(net.NewOperatorDef());
+  // Add input data
+  net.AddRandomInput<D, float>("Input", {batch, input_dim});
+  net.AddRandomInput<D, float>("Params",
+                               {3, cell_dim},
+                               true);
+  if (D == DeviceType::CPU) {
+    OpDefBuilder("LSTMNonlinear", "LSTMNonlinearTest")
+        .Input("Input")
+        .Input("Params")
+        .Output("Output")
+        .AddIntArg("T", static_cast<int>(DataTypeToEnum<T>::value))
+        .Finalize(net.NewOperatorDef());
+  }  else {
+    MACE_NOT_IMPLEMENTED;
+  }
 
   // Warm-up
   for (int i = 0; i < 5; ++i) {
@@ -54,24 +61,24 @@ void TimeOffsetBenchmark(int iters,
 }
 }  // namespace
 
-#define MACE_BM_TIMEOFFSET2D_MACRO(H, W, TYPE, DEVICE)              \
-  static void MACE_BM_TIMEOFFSET2D_##H##_##W##_##TYPE##_##DEVICE(\
-      int iters) {                                                     \
-    const int64_t tot = static_cast<int64_t>(iters) * H * W;           \
-    mace::testing::BytesProcessed(tot *(sizeof(TYPE)));                \
-    TimeOffsetBenchmark<DEVICE, TYPE>(iters, {H, W}, 1);               \
-  }                                                                    \
-  MACE_BENCHMARK(MACE_BM_TIMEOFFSET2D_##H##_##W##_##TYPE##_##DEVICE)   \
-
-#define MACE_BM_TIMEOFFSET2D(H, W)                           \
-  MACE_BM_TIMEOFFSET2D_MACRO(H, W, float, CPU);
+#define MACE_BM_LSTM_NONLIN_MACRO(N, IN_DIM, TYPE, DEVICE)          \
+  static void                                                       \
+      MACE_BM_LSTM_NONLIN_##N##_##IN_DIM##_##TYPE##_##DEVICE(\
+        int iters) {                                                \
+    const int64_t tot =                                             \
+      static_cast<int64_t>(iters) * (N * IN_DIM + 3 * (IN_DIM / 5));\
+    mace::testing::BytesProcessed(tot * (sizeof(TYPE)));            \
+    LSTMNonlinear<DEVICE, TYPE>(iters, N, IN_DIM);                  \
+  }                                                                 \
+  MACE_BENCHMARK(                                                   \
+      MACE_BM_LSTM_NONLIN_##N##_##IN_DIM##_##TYPE##_##DEVICE)
 
+#define MACE_BM_LSTM_NONLIN(N, IN_DIM)                 \
+  MACE_BM_LSTM_NONLIN_MACRO(N, IN_DIM, float, CPU);
 
-MACE_BM_TIMEOFFSET2D(20, 128);
-MACE_BM_TIMEOFFSET2D(40, 512);
-MACE_BM_TIMEOFFSET2D(1, 1024);
-MACE_BM_TIMEOFFSET2D(20, 2048);
-MACE_BM_TIMEOFFSET2D(20, 512);
+MACE_BM_LSTM_NONLIN(50, 200);
+MACE_BM_LSTM_NONLIN(50, 920);
+MACE_BM_LSTM_NONLIN(80, 640);
 
 }  // namespace test
 }  // namespace ops

mace/ops/opencl/buffer/softmax.h

@@ -32,12 +32,16 @@ namespace buffer {
 template <typename T>
 class SoftmaxKernel : public OpenCLSoftmaxKernel {
  public:
+  explicit SoftmaxKernel(bool use_log)
+      : use_log_(use_log) {}
+
   MaceStatus Compute(
       OpContext *context,
       const Tensor *logits,
       Tensor *output) override;
 
  private:
+  bool use_log_;
   cl::Kernel kernel_;
   uint32_t kwg_size_;
   std::vector<index_t> input_shape_;
@@ -88,6 +92,7 @@ MaceStatus SoftmaxKernel<T>::Compute(
     built_options.emplace("-DIN_DATA_TYPE=" + DtToCLDt(logits->dtype()));
     built_options.emplace("-DOUT_DATA_TYPE=" + DtToCLDt(dt));
     built_options.emplace("-DDATA_TYPE=" + DtToUpCompatibleCLDt(dt));
+    if (use_log_) built_options.emplace("-DUSE_LOG");
     MACE_RETURN_IF_ERROR(runtime->BuildKernel("softmax_buffer", kernel_name,
                                               built_options, &kernel_));
 

mace/ops/opencl/cl/softmax.cl

@@ -73,13 +73,25 @@ __kernel void softmax(OUT_OF_RANGE_PARAMS
   switch(exceeded) {
     case 1:
       data.z = native_exp(data.z) / sum;
+#ifdef USE_LOG
+      data.z = native_log(data.z);
+#endif
     case 2:
       data.y = native_exp(data.y) / sum;
+#ifdef USE_LOG
+      data.y = native_log(data.y);
+#endif
     case 3:
       data.x = native_exp(data.x) / sum;
+#ifdef USE_LOG
+      data.x = native_log(data.x);
+#endif
       break;
     default:
       data = native_exp(data) / sum;
+#ifdef USE_LOG
+      data = native_log(data);
+#endif
   }
 
   WRITE_IMAGET(output, (int2)(pos, hb_idx), data);

mace/ops/opencl/cl/softmax_buffer.cl

@@ -75,14 +75,26 @@ __kernel void softmax(BUFFER_OUT_OF_RANGE_PARAMS
     switch(remain_chan) {
       case 3:
         output[offset + 2] = native_exp(CONVERT(input[offset + 2]) - max_value) / sum;
+#ifdef USE_LOG
+        output[offset + 2] = native_log(output[offset + 2]);
+#endif
       case 2:
         output[offset + 1] = native_exp(CONVERT(input[offset + 1]) - max_value) / sum;
+#ifdef USE_LOG
+        output[offset + 1] = native_log(output[offset + 1]);
+#endif
       case 1:
         output[offset] = native_exp(CONVERT(input[offset]) - max_value) / sum;
+#ifdef USE_LOG
+        output[offset] = native_log(output[offset]);
+#endif
     }
   } else {
     data = CONVERT4(vload4(0, input + offset));
     data = native_exp(data - max_value) / sum;
+#ifdef USE_LOG
+    data = native_log(data)
+#endif
     VSTORE4(CONVERT_TO(data, OUT_DATA_TYPE4), output, offset);
   }
 }

mace/ops/opencl/image/softmax.h

@@ -59,12 +59,16 @@ inline std::vector<uint32_t> LocalWS(OpenCLRuntime *runtime,
 template <typename T>
 class SoftmaxKernel : public OpenCLSoftmaxKernel {
  public:
+  explicit SoftmaxKernel(bool use_log)
+      : use_log_(use_log) {}
+
   MaceStatus Compute(
       OpContext *context,
       const Tensor *logits,
       Tensor *output) override;
 
  private:
+  bool use_log_;
   cl::Kernel kernel_;
   uint32_t kwg_size_;
   std::vector<index_t> input_shape_;
@@ -114,6 +118,8 @@ MaceStatus SoftmaxKernel<T>::Compute(
     auto dt = DataTypeToEnum<T>::value;
     built_options.emplace("-DDATA_TYPE=" + DtToUpCompatibleCLDt(dt));
     built_options.emplace("-DCMD_DATA_TYPE=" + DtToUpCompatibleCLCMDDt(dt));
+    if (use_log_)
+      built_options.emplace("-DUSE_LOG");
     MACE_RETURN_IF_ERROR(runtime->BuildKernel("softmax", kernel_name,
                                               built_options, &kernel_));
 

mace/ops/ops_registry.cc

@@ -34,6 +34,7 @@ extern void RegisterDeconv2D(OpRegistryBase *op_registry);
 extern void RegisterDepthToSpace(OpRegistryBase *op_registry);
 extern void RegisterDepthwiseConv2d(OpRegistryBase *op_registry);
 extern void RegisterDepthwiseDeconv2d(OpRegistryBase *op_registry);
+extern void RegisterDynamicLSTM(OpRegistryBase *op_registry);
 extern void RegisterEltwise(OpRegistryBase *op_registry);
 extern void RegisterExpandDims(OpRegistryBase *op_registry);
 extern void RegisterFill(OpRegistryBase *op_registry);
@@ -42,9 +43,11 @@ extern void RegisterGather(OpRegistryBase *op_registry);
 extern void RegisterIdentity(OpRegistryBase *op_registry);
 extern void RegisterInferConv2dShape(OpRegistryBase *op_registry);
 extern void RegisterLocalResponseNorm(OpRegistryBase *op_registry);
+extern void RegisterLSTMNonlinear(OpRegistryBase *op_registry);
 extern void RegisterMatMul(OpRegistryBase *op_registry);
 extern void RegisterOneHot(OpRegistryBase *op_registry);
 extern void RegisterPad(OpRegistryBase *op_registry);
+extern void RegisterPadContext(OpRegistryBase *op_registry);
 extern void RegisterPNorm(OpRegistryBase *op_registry);
 extern void RegisterPooling(OpRegistryBase *op_registry);
 extern void RegisterReduce(OpRegistryBase *op_registry);
@@ -68,7 +71,6 @@ extern void RegisterStack(OpRegistryBase *op_registry);
 extern void RegisterStridedSlice(OpRegistryBase *op_registry);
 extern void RegisterSumGroup(OpRegistryBase *op_registry);
 extern void RegisterTargetRMSNorm(OpRegistryBase *op_registry);
-extern void RegisterTimeOffset(OpRegistryBase *op_registry);
 extern void RegisterTranspose(OpRegistryBase *op_registry);
 extern void RegisterUnstack(OpRegistryBase *op_registry);
 
@@ -102,6 +104,7 @@ OpRegistry::OpRegistry() : OpRegistryBase() {
   ops::RegisterDepthToSpace(this);
   ops::RegisterDepthwiseConv2d(this);
   ops::RegisterDepthwiseDeconv2d(this);
+  ops::RegisterDynamicLSTM(this);
   ops::RegisterEltwise(this);
   ops::RegisterExpandDims(this);
   ops::RegisterFill(this);
@@ -110,9 +113,11 @@ OpRegistry::OpRegistry() : OpRegistryBase() {
   ops::RegisterIdentity(this);
   ops::RegisterInferConv2dShape(this);
   ops::RegisterLocalResponseNorm(this);
+  ops::RegisterLSTMNonlinear(this);
   ops::RegisterMatMul(this);
   ops::RegisterOneHot(this);
   ops::RegisterPad(this);
+  ops::RegisterPadContext(this);
   ops::RegisterPNorm(this);
   ops::RegisterPooling(this);
   ops::RegisterReduce(this);
@@ -136,7 +141,6 @@ OpRegistry::OpRegistry() : OpRegistryBase() {
   ops::RegisterSqueeze(this);
   ops::RegisterSumGroup(this);
   ops::RegisterTargetRMSNorm(this);
-  ops::RegisterTimeOffset(this);
   ops::RegisterTranspose(this);
   ops::RegisterUnstack(this);
 

mace/ops/time_offset.cc → mace/ops/pad_context.cc

@@ -25,14 +25,15 @@ namespace mace {
 namespace ops {
 
 template <DeviceType D, typename T>
-class TimeOffsetOp;
+class PadContextOp;
 
 template <typename T>
-class TimeOffsetOp<DeviceType::CPU, T> : public Operation {
+class PadContextOp<DeviceType::CPU, T> : public Operation {
  public:
-  explicit TimeOffsetOp(OpConstructContext *context)
+  explicit PadContextOp(OpConstructContext *context)
       : Operation(context),
-        offset_(Operation::GetOptionalArg<int>("offset", 0)) {}
+        left_context_(Operation::GetOptionalArg<int>("left_context", 0)),
+        right_context_(Operation::GetOptionalArg<int>("right_context", 0)) {}
 
   MaceStatus Run(OpContext *context) override {
     MACE_UNUSED(context);
@@ -41,27 +42,38 @@ class TimeOffsetOp<DeviceType::CPU, T> : public Operation {
 
     index_t rank = input->dim_size();
     MACE_CHECK(rank >= 2, "input's rank should >= 2.");
+    MACE_CHECK(left_context_ > 0 && right_context_ > 0,
+               "left context and right context should be greater than zero");
     const std::vector<index_t> &input_shape = input->shape();
     const index_t batch =
         std::accumulate(input_shape.begin(), input_shape.end() - 2, 1,
                         std::multiplies<index_t>());
-    const index_t frames = input_shape[rank - 2];
-    const index_t input_dim = input_shape[rank - 1];
-    MACE_RETURN_IF_ERROR(output->ResizeLike(input));
+    const index_t chunk = input_shape[rank - 2];
+    const index_t dim = input_shape[rank - 1];
+    const index_t output_chunk = chunk + left_context_ + right_context_;
+    std::vector<index_t> output_shape = input->shape();
+    output_shape[rank - 2] = output_chunk;
+    MACE_RETURN_IF_ERROR(output->Resize(output_shape));
 
     Tensor::MappingGuard input_guard(input);
     Tensor::MappingGuard output_guard(output);
     const T *input_data = input->data<T>();
     T *output_data = output->mutable_data<T>();
 
-#pragma omp parallel for collapse(2) schedule(runtime)
     for (index_t i = 0; i < batch; ++i) {
-      for (index_t j = 0; j < frames; ++j) {
-        index_t time_index = offset_ + j;
-        index_t index = Clamp<index_t>(time_index, 0, frames - 1);
-        T *output_base = output_data + (i * frames + j) * input_dim;
-        const T *input_base = input_data + (i * frames + index) * input_dim;
-        memcpy(output_base, input_base, input_dim * sizeof(T));
+      T *out_base = output_data + i * output_chunk * dim;
+      const T *in_base = input_data + i * chunk * dim;
+#pragma omp parallel for schedule(runtime)
+      for (index_t j = 0; j < left_context_; ++j) {
+        memcpy(out_base + j * dim, in_base, dim * sizeof(T));
+      }
+      out_base = out_base + left_context_ * dim;
+      memcpy(out_base, in_base, chunk * dim * sizeof(T));
+      out_base = out_base + chunk * dim;
+      in_base = in_base + (chunk -1) * dim;
+#pragma omp parallel for schedule(runtime)
+      for (index_t j = 0; j < right_context_; ++j) {
+        memcpy(out_base + j * dim, in_base, dim * sizeof(T));
       }
     }
 
@@ -69,11 +81,12 @@ class TimeOffsetOp<DeviceType::CPU, T> : public Operation {
   }
 
  private:
-  int offset_;
+  int left_context_;
+  int right_context_;
 };
 
-void RegisterTimeOffset(OpRegistryBase *op_registry) {
-  MACE_REGISTER_OP(op_registry, "TimeOffset", TimeOffsetOp,
+void RegisterPadContext(OpRegistryBase *op_registry) {
+  MACE_REGISTER_OP(op_registry, "PadContext", PadContextOp,
                    DeviceType::CPU, float);
 }
 

mace/ops/pad_context_benchmark.cc

+// Copyright 2018 The MACE Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "mace/core/testing/test_benchmark.h"
+#include "mace/ops/ops_test_util.h"
+
+namespace mace {
+namespace ops {
+namespace test {
+
+namespace {
+template<DeviceType D, typename T>
+void PadContextBM(int iters,
+                  const std::vector<index_t> &input_shape,
+                  const int left_context,
+                  const int right_context) {
+  mace::testing::StopTiming();
+
+  // Construct graph
+  OpsTestNet net;
+
+  net.AddRandomInput<D, float>("Input", input_shape);
+
+  OpDefBuilder("PadContext", "PadContextBM")
+      .Input("Input")
+      .Output("Output")
+      .AddIntArg("left_context", left_context)
+      .AddIntArg("right_context", right_context)
+      .AddIntArg("T", static_cast<int>(DataTypeToEnum<T>::value))
+      .Finalize(net.NewOperatorDef());
+
+  // Warm-up
+  for (int i = 0; i < 5; ++i) {
+    net.RunOp(D);
+    net.Sync();
+  }
+
+  mace::testing::StartTiming();
+  while (iters--) {
+    net.RunOp(D);
+    net.Sync();
+  }
+}
+}  // namespace
+
+#define MACE_BM_PAD_CONTEXT_MACRO(N, H, W, L, R, TYPE, DEVICE)  \
+  static void                                                                \
+      MACE_BM_PAD_CONTEXT_##N##_##H##_##W##_##L##_##R##_##TYPE##_##DEVICE(   \
+          int iters) {                                                       \
+        const int64_t tot = static_cast<int64_t>(iters) * N * H * W;         \
+        mace::testing::BytesProcessed(tot *(sizeof(TYPE)));                  \
+        PadContextBM<DEVICE, TYPE>(iters, {N, H, W}, L, R);             \
+      }                                                                      \
+      MACE_BENCHMARK(                                                        \
+          MACE_BM_PAD_CONTEXT_##N##_##H##_##W##_##L##_##R##_##TYPE##_##DEVICE)
+
+#define MACE_BM_PAD_CONTEXT(N, H, W, L, R)                 \
+  MACE_BM_PAD_CONTEXT_MACRO(N, H, W, L, R, float, CPU);
+
+MACE_BM_PAD_CONTEXT(1, 32, 32, 5, 5);
+MACE_BM_PAD_CONTEXT(2, 32, 32, 7, 7);
+MACE_BM_PAD_CONTEXT(1, 32, 32, 3, 3);
+MACE_BM_PAD_CONTEXT(1, 128, 128, 9, 9);
+MACE_BM_PAD_CONTEXT(3, 128, 128, 7, 7);
+
+}  // namespace test
+}  // namespace ops
+}  // namespace mace

mace/ops/time_offset_test.cc → mace/ops/pad_context_test.cc

@@ -18,106 +18,68 @@ namespace mace {
 namespace ops {
 namespace test {
 
-class TimeOffsetOpTest : public OpsTestBase {};
+class PadContextOpTest : public OpsTestBase {};
 
 namespace {
 template <DeviceType D, typename T>
-void TestTimeOffset(const std::vector<index_t> &input_shape,
-                    const std::vector<T> &input,
-                    const int offset,
-                    const std::vector<T> &output) {
+void TestPadContext(const std::vector<index_t> &input_shape,
+               const std::vector<T> &input,
+               const int left_context,
+               const int right_context,
+               const std::vector<index_t> &output_shape,
+               const std::vector<T> &output) {
   OpsTestNet net;
   net.AddInputFromArray<CPU, T>(MakeString("Input"),
                                 input_shape,
                                 input);
 
-  OpDefBuilder("TimeOffset", "TimeOffsetTest")
+  OpDefBuilder("PadContext", "PadContextTest")
       .Input("Input")
       .Output("Output")
-      .AddIntArg("offset", offset)
+      .AddIntArg("left_context", left_context)
+      .AddIntArg("right_context", right_context)
       .Finalize(net.NewOperatorDef());
 
   net.RunOp();
 
-  net.AddInputFromArray<CPU, T>("ExpectedOutput", input_shape, output);
-  ExpectTensorNear<T>(*net.GetOutput("ExpectedOutput"),
-                      *net.GetOutput("Output"));
+  auto expected = net.CreateTensor<T>(output_shape, output);
+  ExpectTensorNear<T>(*expected, *net.GetOutput("Output"), 1e-5);
 }
 }  // namespace
 
-TEST_F(TimeOffsetOpTest, Simple2Dim) {
-  TestTimeOffset<DeviceType::CPU, float>(
+TEST_F(PadContextOpTest, Simple2Dim) {
+  TestPadContext<DeviceType::CPU, float>(
     {3, 5},
     {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    -2,
-    {1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    -1,
-    {1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    0,
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    1,
-    {6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 11, 12, 13, 14, 15});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    2,
-    {11, 12, 13, 14, 15, 11, 12, 13, 14, 15, 11, 12, 13, 14, 15});
+    2, 3, {8, 5},
+    {1, 2, 3, 4, 5,
+     1, 2, 3, 4, 5,
+     1, 2, 3, 4, 5,
+     6, 7, 8, 9, 10,
+     11, 12, 13, 14, 15,
+     11, 12, 13, 14, 15,
+     11, 12, 13, 14, 15,
+     11, 12, 13, 14, 15});
 }
 
-
-TEST_F(TimeOffsetOpTest, Simple3Dim) {
-  TestTimeOffset<DeviceType::CPU, float>(
+TEST_F(PadContextOpTest, Simple3Dim) {
+  TestPadContext<DeviceType::CPU, float>(
     {2, 3, 5},
     {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
      1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    -2,
-    {1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5,
-     1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {2, 3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    -1,
-    {1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
-     1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {2, 3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    0,
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-     1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {2, 3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    1,
-    {6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 11, 12, 13, 14, 15,
-     6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 11, 12, 13, 14, 15});
-
-  TestTimeOffset<DeviceType::CPU, float>(
-    {2, 3, 5},
-    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
-    2,
-    {11, 12, 13, 14, 15, 11, 12, 13, 14, 15, 11, 12, 13, 14, 15,
-     11, 12, 13, 14, 15, 11, 12, 13, 14, 15, 11, 12, 13, 14, 15});
+    1, 2, {2, 6, 5},
+    {1, 2, 3, 4, 5,
+     1, 2, 3, 4, 5,
+     6, 7, 8, 9, 10,
+     11, 12, 13, 14, 15,
+     11, 12, 13, 14, 15,
+     11, 12, 13, 14, 15,
+     1, 2, 3, 4, 5,
+     1, 2, 3, 4, 5,
+     6, 7, 8, 9, 10,
+     11, 12, 13, 14, 15,
+     11, 12, 13, 14, 15,
+     11, 12, 13, 14, 15});
 }
 
 }  // namespace test

mace/ops/pnorm.cc

@@ -48,8 +48,6 @@ class PNormOp<DeviceType::CPU, T> : public Operation {
     const Tensor *input = this->Input(0);
     Tensor *output = this->Output(0);
 
-
-
     const std::vector<index_t> &input_shape = input->shape();
     const index_t dim_size = input_shape.size();
     MACE_CHECK(dim_size >= 1, "PNorm only supports input dim size >= 1");

mace/ops/pnorm_benchmark.cc

@@ -57,7 +57,7 @@ void PNormBenchmark(int iters, int n, int h, int w, int p, int ow) {
           int iters) {                                           \
     const int64_t tot = static_cast<int64_t>(iters) * N * H * W; \
     mace::testing::BytesProcessed(tot *(sizeof(TYPE)));          \
-    PNormBenchmark<DEVICE, TYPE>(iters, N, H, W, P, OW);   \
+    PNormBenchmark<DEVICE, TYPE>(iters, N, H, W, P, OW);         \
   }                                                              \
   MACE_BENCHMARK(                                                \
       MACE_BM_PNORM_##N##_##H##_##W##_##P##_##OW##_##TYPE##_##DEVICE)

mace/ops/slice.cc

@@ -40,19 +40,18 @@ class SliceOp<DeviceType::CPU, T> : public Operation {
     const index_t rank = input->dim_size();
     MACE_CHECK(rank >= 1)
       << "The input dim size should >= 1";
+    const index_t input_dim = input->dim(rank - 1);
     MACE_CHECK(starts_.size() == 1 && ends_.size() == 1 && axes_.size() == 1,
                "only support slicing at one axis.");
     MACE_CHECK(axes_[0] == -1 || axes_[0] == rank - 1,
                "only support slicing at the last axis.");
-    const index_t input_dim = input->dim(rank - 1);
+    MACE_CHECK(starts_[0] < input_dim && starts_[0] >= 0
+                   && ends_[0] >= 0
+                   && ends_[0] <= input_dim)
+      << "The starts and ends caused over range error.";
     const index_t offset = starts_[0];
     const index_t output_dim = ends_[0] - starts_[0];
-
     MACE_CHECK(output_dim >= 0, "output_dim should >= 0");
-    MACE_CHECK(starts_[0] < input_dim
-                   && output_dim <= input_dim
-                   && ends_[0] <= input_dim)
-      << "The starts and ends caused over range error.";
 
     const index_t  frames =
         std::accumulate(input->shape().begin(), input->shape().end() - 1, 1,

mace/ops/slice_benchmark.cc

+// Copyright 2018 The MACE Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "mace/core/testing/test_benchmark.h"
+#include "mace/ops/ops_test_util.h"
+
+namespace mace {
+namespace ops {
+namespace test {
+
+namespace {
+template<DeviceType D, typename T>
+void BMSliceHelper(int iters,
+                   const std::vector<index_t> &input_shape,
+                   const int offset,
+                   const int output_dim) {
+  mace::testing::StopTiming();
+  // Construct graph
+  OpsTestNet net;
+  net.AddRandomInput<D, float>("Input", input_shape);
+  OpDefBuilder("Slice", "SliceBM")
+      .Input("Input")
+      .Output("Output")
+      .AddIntArg("offset", offset)
+      .AddIntArg("output_dim", output_dim)
+      .AddIntArg("T", static_cast<int>(DataTypeToEnum<T>::value))
+      .Finalize(net.NewOperatorDef());
+
+  // Warm-up
+  for (int i = 0; i < 5; ++i) {
+    net.RunOp(D);
+    net.Sync();
+  }
+
+  mace::testing::StartTiming();
+  while (iters--) {
+    net.RunOp(D);
+    net.Sync();
+  }
+}
+}  // namespace
+
+#define MACE_BM_SLICE_MACRO(N, H, W, S, D, TYPE, DEVICE)  \
+  static void                                                                \
+      MACE_BM_SLICE_##N##_##H##_##W##_##S##_##D##_##TYPE##_##DEVICE(  \
+          int iters) {                                                       \
+        const int64_t tot = static_cast<int64_t>(iters) * N * H * W;         \
+        mace::testing::BytesProcessed(tot *(sizeof(TYPE)));                  \
+        BMSliceHelper<DEVICE, TYPE>(iters, {N, H, W}, S, D);             \
+      }                                                                      \
+      MACE_BENCHMARK(                                                        \
+          MACE_BM_SLICE_##N##_##H##_##W##_##S##_##D##_##TYPE##_##DEVICE)
+
+#define MACE_BM_SLICE(N, H, W, S, D)                 \
+  MACE_BM_SLICE_MACRO(N, H, W, S, D, float, CPU);
+
+MACE_BM_SLICE(1, 32, 32, 5, 5);
+MACE_BM_SLICE(1, 32, 32, 7, 5);
+MACE_BM_SLICE(1, 32, 32, 3, 20);
+MACE_BM_SLICE(1, 128, 128, 9, 100);
+MACE_BM_SLICE(1, 128, 128, 7, 100);
+
+}  // namespace test
+}  // namespace ops
+}  // namespace mace

mace/ops/softmax.cc

@@ -42,7 +42,8 @@ template <>
 class SoftmaxOp<DeviceType::CPU, float> : public Operation {
  public:
   explicit SoftmaxOp(OpConstructContext *context)
-      : Operation(context) {}
+      : Operation(context),
+        use_log_(Operation::GetOptionalArg<bool>("use_log", false)) {}
 
   MaceStatus Run(OpContext *context) override {
     MACE_UNUSED(context);
@@ -88,9 +89,18 @@ class SoftmaxOp<DeviceType::CPU, float> : public Operation {
 
           sum = std::max(sum, std::numeric_limits<float>::min());
           channel_offset = 0;
-          for (index_t c = 0; c < class_count; ++c) {
-            output_ptr[channel_offset] /= sum;
-            channel_offset += class_size;
+          if (use_log_) {
+            for (index_t c = 0; c < class_count; ++c) {
+              output_ptr[channel_offset] /= sum;
+              output_ptr[channel_offset] =
+                  std::log(output_ptr[channel_offset]);
+              channel_offset += class_size;
+            }
+          } else {
+            for (index_t c = 0; c < class_count; ++c) {
+              output_ptr[channel_offset] /= sum;
+              channel_offset += class_size;
+            }
           }
         }  // k
       }  // b
@@ -123,8 +133,15 @@ class SoftmaxOp<DeviceType::CPU, float> : public Operation {
         }
 
         sum = std::max(sum, std::numeric_limits<float>::min());
-        for (index_t c = 0; c < class_count; ++c) {
-          output_ptr[c] /= sum;
+        if (use_log_) {
+          for (index_t c = 0; c < class_count; ++c) {
+            output_ptr[c] /=  sum;
+            output_ptr[c] = std::log(output_ptr[c]);
+          }
+        } else {
+          for (index_t c = 0; c < class_count; ++c) {
+            output_ptr[c] /=  sum;
+          }
         }
       }
     } else {
@@ -132,6 +149,9 @@ class SoftmaxOp<DeviceType::CPU, float> : public Operation {
     }
     return MaceStatus::MACE_SUCCESS;
   }
+
+ protected:
+  bool use_log_;
 };
 
 #ifdef MACE_ENABLE_QUANTIZE
@@ -142,10 +162,12 @@ template <>
 class SoftmaxOp<DeviceType::CPU, uint8_t> : public Operation {
  public:
   explicit SoftmaxOp(OpConstructContext *context)
-      : Operation(context) {}
+      : Operation(context),
+        use_log_(Operation::GetOptionalArg<bool>("use_log", false)) {}
 
   MaceStatus Run(OpContext *context) override {
     MACE_UNUSED(context);
+    MACE_CHECK(!use_log_, "MACE dose not support quantized logsoftmax yet.");
     const Tensor *input = this->Input(0);
     Tensor *output = this->Output(0);
     MACE_RETURN_IF_ERROR(output->ResizeLike(input));
@@ -366,6 +388,9 @@ class SoftmaxOp<DeviceType::CPU, uint8_t> : public Operation {
     }
     return MaceStatus::MACE_SUCCESS;
   }
+
+ protected:
+  bool use_log_;
 };
 #endif  // MACE_ENABLE_QUANTIZE
 
@@ -375,11 +400,13 @@ class SoftmaxOp<DeviceType::GPU, T> : public Operation {
  public:
   explicit SoftmaxOp(OpConstructContext *context)
       : Operation(context) {
+    bool use_log = (
+        Operation::GetOptionalArg<bool>("use_log", false));
     if (context->device()->gpu_runtime()->UseImageMemory()) {
-      kernel_ = make_unique<opencl::image::SoftmaxKernel<T>>();
+      kernel_ = make_unique<opencl::image::SoftmaxKernel<T>>(use_log);
     } else {
       context->set_output_mem_type(MemoryType::GPU_BUFFER);
-      kernel_ = make_unique<opencl::buffer::SoftmaxKernel<T>>();
+      kernel_ = make_unique<opencl::buffer::SoftmaxKernel<T>>(use_log);
     }
   }
   MaceStatus Run(OpContext *context) override {

mace/ops/softmax_test.cc

@@ -12,6 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// python implementation
+// import numpy as np
+// x = np.asarray([1., 1., 1., 1.], 'f')
+// exp_x = np.exp(x)
+// softmax_x = exp_x / np.sum(exp_x)
+// log_softmax_x = np.log(softmax_x)
+
 #include "mace/ops/ops_test_util.h"
 
 namespace mace {
@@ -19,18 +26,27 @@ namespace ops {
 namespace test {
 
 class SoftmaxOpTest : public OpsTestBase {};
+class LogSoftmaxOpTest : public OpsTestBase {};
 
 namespace {
 template <DeviceType D>
-void Simple() {
+void Simple(bool use_log = false) {
   // Construct graph
   OpsTestNet net;
   // Add input data
   net.AddInputFromArray<D, float>("Input", {1, 1, 2, 4},
                                   {1, 1, 1, 1, 1, 2, 3, 4});
+
+  std::vector<float_t> expected_data(8);
+  if (use_log) {
+    expected_data = {-1.3862944, -1.3862944, -1.3862944, -1.3862944,
+                     -3.4401896 , -2.4401896 , -1.4401897 , -0.44018975};
+  } else {
+    expected_data = {0.25, 0.25, 0.25, 0.25,
+                     0.0320586, 0.08714432, 0.23688282, 0.6439142};
+  }
   auto expected = net.CreateTensor<float>(
-      {1, 1, 2, 4},
-      {0.25, 0.25, 0.25, 0.25, 0.0320586, 0.08714432, 0.23688282, 0.64391426});
+      {1, 1, 2, 4}, expected_data);
 
   if (D == DeviceType::CPU) {
     // test 4d softmax
@@ -38,6 +54,7 @@ void Simple() {
     OpDefBuilder("Softmax", "SoftmaxTest")
         .Input("InputNCHW")
         .Output("OutputNCHW")
+        .AddIntArg("use_log", static_cast<int>(use_log))
         .Finalize(net.NewOperatorDef());
 
     // Run
@@ -52,6 +69,7 @@ void Simple() {
     OpDefBuilder("Softmax", "SoftmaxTest")
         .Input("Input2d")
         .Output("Output")
+        .AddIntArg("use_log", static_cast<int>(use_log))
         .Finalize(net.NewOperatorDef());
 
     // Run
@@ -62,6 +80,7 @@ void Simple() {
     OpDefBuilder("Softmax", "SoftmaxTest")
         .Input("Input")
         .Output("Output")
+        .AddIntArg("use_log", static_cast<int>(use_log))
         .Finalize(net.NewOperatorDef());
 
     // Run
@@ -77,9 +96,13 @@ void Simple() {
 TEST_F(SoftmaxOpTest, CPUSimple) { Simple<DeviceType::CPU>(); }
 TEST_F(SoftmaxOpTest, OPENCLSimple) { Simple<DeviceType::GPU>(); }
 
+TEST_F(LogSoftmaxOpTest, CPUSimple) { Simple<DeviceType::CPU>(true); }
+TEST_F(LogSoftmaxOpTest, OPENCLSimple) { Simple<DeviceType::GPU>(true); }
+
 namespace {
 template <DeviceType D>
-void Complex(const std::vector<index_t> &logits_shape) {
+void Complex(const std::vector<index_t> &logits_shape,
+             bool use_log = false) {
   // Construct graph
   OpsTestNet net;
   // Add input data
@@ -91,11 +114,13 @@ void Complex(const std::vector<index_t> &logits_shape) {
     OpDefBuilder("Softmax", "SoftmaxTest")
         .Input("InputNCHW")
         .Output("OutputNCHW")
+        .AddIntArg("use_log", static_cast<int>(use_log))
         .Finalize(net.NewOperatorDef());
   } else {
     OpDefBuilder("Softmax", "SoftmaxTest")
         .Input("Input")
         .Output("Output")
+        .AddIntArg("use_log", static_cast<int>(use_log))
         .Finalize(net.NewOperatorDef());
   }
   // Run on cpu
@@ -111,6 +136,7 @@ void Complex(const std::vector<index_t> &logits_shape) {
   OpDefBuilder("Softmax", "SoftmaxTest")
       .Input("Input")
       .Output("Output")
+      .AddIntArg("use_log", static_cast<int>(use_log))
       .Finalize(net.NewOperatorDef());
 
   // Run on gpu
@@ -140,6 +166,26 @@ TEST_F(SoftmaxOpTest, OPENCLAlignedRank2) {
   Complex<DeviceType::GPU>({3, 1001});
 }
 
+TEST_F(LogSoftmaxOpTest, OPENCLAligned) {
+Complex<DeviceType::GPU>({1, 256, 256, 3}, true);
+Complex<DeviceType::GPU>({1, 128, 128, 16}, true);
+}
+
+TEST_F(LogSoftmaxOpTest, OPENCLMulBatchAligned) {
+Complex<DeviceType::GPU>({5, 64, 64, 3}, true);
+Complex<DeviceType::GPU>({8, 128, 128, 8}, true);
+}
+
+TEST_F(LogSoftmaxOpTest, OPENCLUnAligned) {
+Complex<DeviceType::GPU>({1, 113, 107, 13}, true);
+Complex<DeviceType::GPU>({5, 211, 107, 1}, true);
+}
+
+TEST_F(LogSoftmaxOpTest, OPENCLAlignedRank2) {
+Complex<DeviceType::GPU>({1, 1001}, true);
+Complex<DeviceType::GPU>({3, 1001}, true);
+}
+
 namespace {
 
 void TestQuantizedSoftmax(const std::vector<index_t> &input_shape) {

mace/ops/splice.cc

@@ -14,16 +14,11 @@
 
 // This Op is for SpliceComponent in Kaldi.
 // It splices a context window of frames together [over time]
-// (copy and append the frame whose time-index in in context_)
+// (copy and append the frame whose time-index is in context_)
 // The context_ values indicate which frame (over time) to splice.
-// if context value is less than the first time-index,
-// copy and append the first frame's dada,
-// when context value is larger than frame's count,
-// copy and append the last frame's data.
-// i.e., give input data: [[1, 2, 3], [4, 5, 6]],
-// with input-dim = 3, frame count = 2, context = [-1, 0, 1]
-// Then, the output should be:
-// [1, 2, 3, 1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 5, 6, 4, 5, 6]
+// It will reduce frames because of left context and right context.
+// i.e., give input data with shape {20, 40}, and contexts:{-2, -1, 0, 1, 2},
+// the output shape should be {16, 200}
 // if const_component_dim_ != 0, const_dim_ will be used to determine which
 // row of "in" we copy the last part of each row of "out" from (this part is
 // not subject to splicing, it's assumed constant for each frame of "input".
@@ -54,24 +49,34 @@ class SpliceOp<DeviceType::CPU, T> : public Operation {
     const Tensor *input = this->Input(0);
     MACE_CHECK(context_.size() > 0)
       << "The context param should not be empty in Splice Op.";
+    MACE_CHECK(input->dim_size() >= 2)
+      << "Splice's input's rank should be greater than 2.";
 
     Tensor *output = this->Output(0);
     const std::vector<index_t> &input_shape = input->shape();
 
-    const index_t frames =
-        std::accumulate(input->shape().begin(), input->shape().end() - 1, 1,
+    const index_t batch =
+        std::accumulate(input->shape().begin(), input->shape().end() - 2, 1,
                         std::multiplies<index_t>());
-
     const index_t rank = input->dim_size();
+    const index_t chunk = input_shape[rank - 2];
     const index_t input_dim = input_shape[rank - 1];
+    const index_t input_stride = chunk * input_dim;
 
     const index_t num_splice = static_cast<index_t>(context_.size());
     const index_t dim = input_dim - const_dim_;
+    const index_t left_context = context_[0];
+    const index_t right_context = context_[num_splice -1];
+
+    const index_t out_chunk = chunk - (right_context - left_context);
+
     MACE_CHECK(input_dim > const_dim_,
                "input dim should be greater than const dim.");
     const index_t output_dim = dim * num_splice + const_dim_;
+    const index_t output_stride = out_chunk * output_dim;
 
     std::vector<index_t> output_shape = input->shape();
+    output_shape[rank - 2] = out_chunk;
     output_shape[rank - 1] = output_dim;
     MACE_RETURN_IF_ERROR(output->Resize(output_shape));
 
@@ -80,28 +85,32 @@ class SpliceOp<DeviceType::CPU, T> : public Operation {
     const T *input_data = input->data<T>();
     T *output_data = output->mutable_data<T>();
 
-#pragma omp parallel for collapse(2) schedule(runtime)
-      for (index_t i = 0; i < frames; ++i) {
+#pragma omp parallel for collapse(3) schedule(runtime)
+    for (int b = 0; b < batch; ++b) {
+      for (index_t i = 0; i < out_chunk; ++i) {
         for (index_t c = 0; c < num_splice; ++c) {
-          const index_t offset =
-              Clamp<index_t>(context_[c] + i, 0, frames - 1);
-          T *output_base = output_data + i * output_dim + c * dim;
-          const T *input_base = input_data + offset * input_dim;
+          const index_t offset = i + context_[c] - left_context;
+          T *output_base =
+              output_data + b * output_stride + i * output_dim + c * dim;
+          const T *input_base =
+              input_data + b * input_stride + offset * input_dim;
           memcpy(output_base, input_base, dim * sizeof(T));
         }
       }
+    }
 
     if (const_dim_ > 0) {
       const index_t output_offset = output_dim - const_dim_;
       const index_t input_offset = dim;
-#pragma omp parallel for schedule(runtime)
-      for (index_t i = 0; i < frames; ++i) {
-          index_t offset = i + context_[0] >= 0 ? i + context_[0] : 0;
-          T *output_base = output_data + i * output_dim;
-          const T *input_base = input_data + offset * input_dim;
+#pragma omp parallel for collapse(2) schedule(runtime)
+      for (int b = 0; b < batch; ++b) {
+        for (index_t i = 0; i < out_chunk; ++i) {
+          T *output_base = output_data +  + b * output_stride + i * output_dim;
+          const T *input_base = input_data + b * input_stride + i * input_dim;
           memcpy(output_base + output_offset,
                  input_base + input_offset,
                  const_dim_ * sizeof(T));
+        }
       }
     }
     return MaceStatus::MACE_SUCCESS;

mace/ops/splice_benchmark.cc

@@ -23,15 +23,15 @@ namespace {
 template<DeviceType D, typename T>
 void BMSpliceHelper(int iters,
                     const std::vector<index_t> &input_shape,
-                    const index_t left_context,
-                    const index_t right_context,
+                    const int left_context,
+                    const int right_context,
                     const int const_component_dim) {
   mace::testing::StopTiming();
 
   // Construct graph
   OpsTestNet net;
 
-  const int num_splice = left_context + right_context + 1;
+  const index_t num_splice = left_context + right_context + 1;
   std::vector<int> contexts(num_splice);
   for (int i = 0; i < num_splice; ++i) {
     contexts[i] = left_context + i;
@@ -44,7 +44,7 @@ void BMSpliceHelper(int iters,
   GenerateRandomRealTypeData(input_shape, &input_data);
   net.AddInputFromArray<D, float>("Input", input_shape, input_data);
 
-  OpDefBuilder("Splice", "SpliceTest")
+  OpDefBuilder("Splice", "SpliceBM")
       .Input("Input")
       .Output("Output")
       .AddIntsArg("context", contexts)
@@ -71,7 +71,6 @@ void BMSpliceHelper(int iters,
       MACE_BM_SPLICE_##N##_##H##_##W##_##L##_##R##_##C##_##TYPE##_##DEVICE(  \
           int iters) {                                                       \
         const int64_t tot = static_cast<int64_t>(iters) * N * H * W;         \
-        mace::testing::MacsProcessed(tot);                                   \
         mace::testing::BytesProcessed(tot *(sizeof(TYPE)));                  \
         BMSpliceHelper<DEVICE, TYPE>(iters, {N, H, W}, L, R, C);             \
       }                                                                      \

mace/ops/splice_test.cc

@@ -53,14 +53,10 @@ TEST_F(SpliceOpTest, WithoutConstDim) {
     {1, 7, 2},
     {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14},
     {-2, -1, 0, 1, 2}, 0,
-    {1, 7, 10},
-    {1, 2, 1, 2, 1, 2, 3, 4, 5, 6,
-     1, 2, 1, 2, 3, 4, 5, 6, 7, 8,
-     1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+    {1, 3, 10},
+    {1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
      3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
-     5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
-     7, 8, 9, 10, 11, 12, 13, 14, 13, 14,
-     9, 10, 11, 12, 13, 14, 13, 14, 13, 14});
+     5, 6, 7, 8, 9, 10, 11, 12, 13, 14});
 }
 
 TEST_F(SpliceOpTest, WithConstDim) {
@@ -72,12 +68,8 @@ TEST_F(SpliceOpTest, WithConstDim) {
      4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
      5, 6, 7, 8, 9, 10, 11, 12, 13, 14},
     {-2, -1, 0, 1, 2}, 7,
-    {1, 5, 22},
-    {1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 6, 7, 8, 9, 10,
-     1, 2, 3, 1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 6, 4, 5, 6, 7, 8, 9, 10,
-     1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 6, 5, 6, 7, 4, 5, 6, 7, 8, 9, 10,
-     2, 3, 4, 3, 4, 5, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 8, 9, 10, 11,
-     3, 4, 5, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 9, 10, 11, 12});
+    {1, 1, 22},
+    {1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 6, 5, 6, 7, 4, 5, 6, 7, 8, 9, 10});
 }
 }  // namespace test
 }  // namespace ops

mace/python/tools/converter_tool/base_converter.py

@@ -102,7 +102,6 @@ class FrameworkType(Enum):
 MaceSupportedOps = [
     'Activation',
     'AddN',
-    'Affine',
     'ArgMax',
     'BatchNorm',
     'BatchToSpaceND',
@@ -126,10 +125,12 @@ MaceSupportedOps = [
     'InferConv2dShape',
     'LocalResponseNorm',
     'LSTMCell',
-    # 'LstmNonlinear',
+    'LstmNonlinear',
+    'DynamicLSTM',
     'MatMul',
     'OneHot',
     'Pad',
+    'PadContext',
     'PNorm',
     'Pooling',
     'PriorBox',
@@ -156,7 +157,6 @@ MaceSupportedOps = [
     'SqrDiffMean',
     'SumGroup',
     'TargetRMSNorm',
-    'TimeOffset',
     'Transpose',
     'WinogradInverseTransform',
     'WinogradTransform',

mace/python/tools/converter_tool/onnx_converter.py

@@ -72,6 +72,7 @@ OnnxSupportedOps = [
     'DimRange',
     'Div',
     'Dropout',
+    'DynamicLstmCell',
     'Elu',
     'Equal',
     # 'Exp',
@@ -90,16 +91,16 @@ OnnxSupportedOps = [
     # 'Hardmax',
     'Identity',
     # 'If',
-    'IfDefined',
+    # 'IfDefined',
     'ImageScaler',
     # 'InstanceNormalization',
     # 'LRN',
     'LSTM',
-    # 'LstmNonlinear',
+    'LstmNonlinear',
     'LeakyRelu',
     # 'Less',
     # 'Log',
-    # 'LogSoftmax',
+    'LogSoftmax',
     # 'Loop',
     # 'LpNormalization',
     # 'LpPool',
@@ -120,6 +121,7 @@ OnnxSupportedOps = [
     # 'Or',
     'PRelu',
     # 'Pad',
+    'PadContext',
     'Padding',
     'PNorm',
     'Pow',
@@ -331,12 +333,11 @@ class OnnxConverter(base_converter.ConverterInterface):
             OnnxOpType.GlobalAveragePool.name: self.convert_reduce,
             OnnxOpType.GlobalMaxPool.name: self.convert_reduce,
             OnnxOpType.Identity.name: self.convert_identity,
-            OnnxOpType.IfDefined.name: self.convert_identity,
             OnnxOpType.ImageScaler.name: self.convert_imagescaler,
             OnnxOpType.LeakyRelu.name: self.convert_activation,
-            # OnnxOpType.LogSoftmax.name: self.convert_softmax,
-            OnnxOpType.LSTM.name: self.convert_lstm,
-            # OnnxOpType.LstmNonlinear.name: self.convert_lstm_nonlinear,
+            OnnxOpType.LogSoftmax.name: self.convert_softmax,
+            OnnxOpType.LstmNonlinear.name: self.convert_lstm_nonlinear,
+            OnnxOpType.DynamicLstmCell.name: self.convert_dynamic_lstm,
             OnnxOpType.Max.name: self.convert_eltwise,
             OnnxOpType.MaxPool.name: self.convert_pooling,
             OnnxOpType.MatMul.name: self.convert_matmul,
@@ -344,7 +345,8 @@ class OnnxConverter(base_converter.ConverterInterface):
             OnnxOpType.Mul.name: self.convert_eltwise,
             OnnxOpType.Neg.name: self.convert_eltwise,
             OnnxOpType.Normalize: self.convert_normalize,
-            OnnxOpType.Offset.name: self.convert_timeoffset,
+            OnnxOpType.Offset.name: self.convert_identity,
+            OnnxOpType.PadContext.name: self.convert_pad_context,
             OnnxOpType.Padding.name: self.convert_identity,
             OnnxOpType.PNorm.name: self.convert_pnorm,
             OnnxOpType.Pow.name: self.convert_eltwise,
@@ -642,7 +644,7 @@ class OnnxConverter(base_converter.ConverterInterface):
             mace_check(axis_value == 1 or axis_value == -3,
                        "only support concat at channel dimension")
         elif node.op_type == OnnxOpType.Append.name:
-            axis_value = 2
+            axis_value = 1
         axis_arg = op.arg.add()
         axis_arg.name = MaceKeyword.mace_axis_str
         axis_arg.i = 4 + axis_value if axis_value < 0 else axis_value
@@ -758,14 +760,69 @@ class OnnxConverter(base_converter.ConverterInterface):
         offset = node.attrs['offset']
         starts_arg = op.arg.add()
         starts_arg.name = 'starts'
-        starts_arg.ints.append(offset)
+        starts_arg.ints.extend([offset])
         output_dim = node.attrs['output_dim']
         ends_arg = op.arg.add()
-        ends_arg.name = 'output_dim'
-        ends_arg.ints.append(output_dim)
+        ends_arg.name = 'ends'
+        ends_arg.ints.extend([output_dim + offset])
         axes_arg = op.arg.add()
         axes_arg.name = 'axes'
-        axes_arg.ints.append(-1)
+        axes_arg.ints.extend([-1])
+
+    def convert_dynamic_lstm(self, node):
+        op = self.convert_general_op(node)
+        op.type = MaceOp.DynamicLSTM.name
+
+        if 'delay_a' in node.attrs:
+            prev_out_delay = node.attrs['delay_a']
+            mace_check(prev_out_delay < 0,
+                       "dynamic's prev_out_delay should <= 0.")
+            prev_out_delay_arg = op.arg.add()
+            prev_out_delay_arg.name = 'prev_out_delay'
+            prev_out_delay_arg.i = prev_out_delay
+        if 'delay_b' in node.attrs:
+            prev_cell_delay = node.attrs['delay_b']
+            mace_check(prev_cell_delay < 0,
+                       "dynamic's prev_cell_delay should < 0.")
+            prev_cell_delay_arg = op.arg.add()
+            prev_cell_delay_arg.name = 'prev_cell_delay'
+            prev_cell_delay_arg.i = prev_cell_delay
+        if 'prev_out_offset' in node.attrs:
+            prev_out_offset = node.attrs['prev_out_offset']
+            mace_check(pre_out_offset >= 0,
+                       "dynamic's prev_out_offset should >= 0.")
+            prev_out_offset_arg = op.arg.add()
+            prev_out_offset_arg.name = 'prev_out_offset'
+            prev_out_offset_arg.i = prev_out_offset
+        if 'prev_a_dim' in node.attrs:
+            prev_out_dim = node.attrs['prev_a_dim']
+            mace_check(prev_out_dim > 0,
+                       "dynamic's prev_out_dim should > 0.")
+            prev_out_dim_arg = op.arg.add()
+            prev_out_dim_arg.name = 'prev_out_dim'
+            prev_out_dim_arg.i = prev_out_dim
+        if 'prev_b_dim' in node.attrs:
+            prev_cell_dim = node.attrs['prev_b_dim']
+            mace_check(prev_cell_dim > 0,
+                       "dynamic's prev_cell_dim should > 0.")
+            prev_cell_dim_arg = op.arg.add()
+            prev_cell_dim_arg.name = 'prev_cell_dim'
+            prev_cell_dim_arg.i = prev_cell_dim
+        if 'bias_a' in node.attrs:
+            bias_a = node.attrs['bias_a']
+            bias_a_arg = op.arg.add()
+            bias_a_arg.name = 'bias_a'
+            bias_a_arg.i = bias_a
+        if 'bias_b' in node.attrs:
+            bias_b = node.attrs['bias_b']
+            bias_b_arg = op.arg.add()
+            bias_b_arg.name = 'bias_b'
+            bias_b_arg.i = bias_b
+        if 'scale' in node.attrs:
+            scale = node.attrs['scale']
+            scale_arg = op.arg.add()
+            scale_arg.name = 'scale'
+            scale_arg.f = scale
 
     def convert_eltwise(self, node):
         op = self.convert_general_op(node)
@@ -925,6 +982,18 @@ class OnnxConverter(base_converter.ConverterInterface):
         op = self.convert_general_op(node)
         op.type = MaceOp.BatchNorm.name
 
+    def convert_pad_context(self, node):
+        op = self.convert_general_op(node)
+        op.type = MaceOp.PadContext.name
+        if 'left_context' in node.attrs:
+            left_context_arg = op.arg.add()
+            left_context_arg.name = 'left_context'
+            left_context_arg.i = node.attrs['left_context']
+        if 'right_context' in node.attrs:
+            right_context_arg = op.arg.add()
+            right_context_arg.name = 'right_context'
+            right_context_arg.i = node.attrs['right_context']
+
     def convert_pnorm(self, node):
         op = self.convert_general_op(node)
         op.type = MaceOp.PNorm.name
@@ -1010,10 +1079,10 @@ class OnnxConverter(base_converter.ConverterInterface):
         op = self.convert_general_op(node)
         op.type = MaceOp.Softmax.name
         # TODO: add logsoftmax in softmax op
-        # if node.op_type == OnnxOpType.LogSoftmax.name:
-        #     use_log_arg = op.arg.add()
-        #     use_log_arg.name = 'use_log'
-        #     use_log_arg.i = 1
+        if node.op_type == OnnxOpType.LogSoftmax.name:
+            use_log_arg = op.arg.add()
+            use_log_arg.name = 'use_log'
+            use_log_arg.i = 1
 
     def convert_splice(self, node):
         op = self.convert_general_op(node)
@@ -1104,6 +1173,11 @@ class OnnxConverter(base_converter.ConverterInterface):
         else:
             op.type = MaceOp.TimeOffset.name
 
+        chunk_size = node.attrs['chunk_size']
+        chunk_size_arg = op.arg.add()
+        chunk_size_arg.name = 'chunk_size'
+        chunk_size_arg.i = chunk_size
+
         offset_arg = op.arg.add()
         offset_arg.name = 'offset'
         offset_arg.i = offset

mace/python/tools/converter_tool/transformer.py

@@ -1143,6 +1143,7 @@ class Transformer(base_converter.ConverterInterface):
                         filter.float_data[:] = filter_data.flat
                         filter.dims[:] = filter_data.shape
                         arg.i = 1
+                        six.print_('transpose matmul weight')
 
     def transpose_filters(self):
         net = self._model
@@ -1192,7 +1193,6 @@ class Transformer(base_converter.ConverterInterface):
             mace_check(filter_format == DataFormat.HWIO,
                        "HEXAGON only support HWIO/HWIM filter format.")
         else:
-            print("Transpose filters to OIHW/MIHW")
             # transpose filter to OIHW/MIHW for tensorflow (HWIO/HWIM)
             if filter_format == DataFormat.HWIO:
                 for op in net.op:
@@ -1201,6 +1201,7 @@ class Transformer(base_converter.ConverterInterface):
                             or op.type == MaceOp.DepthwiseConv2d.name) \
                             and op.input[1] in self._consts \
                             and op.input[1] not in transposed_filter:
+                        print("Transpose Conv2D/Deconv2D filters to OIHW/MIHW")
                         filter = self._consts[op.input[1]]
                         filter_data = np.array(filter.float_data).reshape(
                             filter.dims)
@@ -1208,9 +1209,13 @@ class Transformer(base_converter.ConverterInterface):
                         filter.float_data[:] = filter_data.flat
                         filter.dims[:] = filter_data.shape
                         transposed_filter.add(op.input[1])
-                    if (op.type == MaceOp.MatMul.name
-                            and (ConverterUtil.get_arg(op, MaceKeyword.mace_winograd_filter_transformed) is not None)  # noqa
+                    if (op.type == MaceOp.MatMul.name and
+                            (ConverterUtil.get_arg(
+                                op,
+                                MaceKeyword.mace_winograd_filter_transformed)
+                                 is not None)  # noqa
                             and op.input[1] not in transposed_filter):
+                        print("Transpose Winograd filters to OIHW/MIHW")
                         filter = self._consts[op.input[0]]
                         filter_data = np.array(filter.float_data).reshape(
                             filter.dims)
@@ -1222,6 +1227,8 @@ class Transformer(base_converter.ConverterInterface):
                             and op.input[1] not in transposed_filter:
                         weight = self._consts[op.input[1]]
                         if len(weight.dims) == 4:
+                            print("Transpose FullyConnected filters to"
+                                  " OIHW/MIHW")
                             weight_data = np.array(weight.float_data).reshape(
                                 weight.dims)
                             weight_data = weight_data.transpose(3, 2, 0, 1)

mace/utils/math.h

@@ -60,25 +60,22 @@ inline Integer Clamp(Integer in, Integer low, Integer high) {
   return std::max<Integer>(low, std::min<Integer>(in, high));
 }
 
-template <typename T>
-inline T ScalarSigmoid(T in) {
-  if (in > static_cast<T>(0)) {
-    return static_cast<T>(1) / (static_cast<T>(1) + std::exp(-in));
+inline float ScalarSigmoid(float in) {
+  if (in > 0) {
+    return 1 / (1 + std::exp(-in));
   } else {
-    T x = std::exp(in);
-    return x / (x + static_cast<T>(1));
+    float x = std::exp(in);
+    return x / (x + 1.f);
   }
 }
 
-template <typename T>
-inline T ScalarTanh(T in) {
-  if (in > static_cast<T>(0)) {
-    T inv_expa = std::exp(-in);
-    return -static_cast<T>(1) +
-        static_cast<T>(2) / (static_cast<T>(1) + inv_expa * inv_expa);
+inline float ScalarTanh(float in) {
+  if (in > 0) {
+    float x = std::exp(-in);
+    return -1.f + 2.f / (1.f + x * x);
   } else {
-    T x = std::exp(in);
-    return x / (x + static_cast<T>(1));
+    float x = std::exp(in);
+    return 1.f - 2.f / (1.f + x * x);
   }
 }