feat(dnn): add float16 for remap backward

GitOrigin-RevId: 02630300515e1805aba1792968f3beab89ca4164

dnn/src/common/remap.cpp

@@ -89,8 +89,9 @@ void RemapBackwardData::check_exec(
         size_t workspace_in_bytes) {
     check_layout_fwd(grad, map_xy, diff);
     megdnn_assert(
-            grad.dtype == dtype::Float32()
-                                  DNN_INC_FLOAT16(|| grad.dtype == dtype::BFloat16()),
+            grad.dtype ==
+                    dtype::Float32() DNN_INC_FLOAT16(|| grad.dtype == dtype::BFloat16())
+                            DNN_INC_FLOAT16(|| grad.dtype == dtype::Float16()),
             "Backward Remap only supports Float32/BFloat16.");
     auto required_workspace_in_bytes = get_workspace_in_bytes(map_xy, diff, grad);
     megdnn_assert(workspace_in_bytes >= required_workspace_in_bytes);
@@ -102,8 +103,9 @@ void RemapBackwardMat::check_exec(
     check_layout_fwd(src, map_xy, diff);
     megdnn_assert_eq_layout(map_xy, grad);
     megdnn_assert(
-            grad.dtype == dtype::Float32()
-                                  DNN_INC_FLOAT16(|| grad.dtype == dtype::BFloat16()),
+            grad.dtype ==
+                    dtype::Float32() DNN_INC_FLOAT16(|| grad.dtype == dtype::BFloat16())
+                            DNN_INC_FLOAT16(|| grad.dtype == dtype::Float16()),
             "Backward Remap only supports Float32/BFloat16.");
     auto required_workspace_in_bytes = get_workspace_in_bytes(src, map_xy, diff, grad);
     megdnn_assert(workspace_in_bytes >= required_workspace_in_bytes);

dnn/src/cuda/remap/backward_data.cpp

@@ -61,6 +61,7 @@ void RemapBackwardDataImpl::exec(
     switch (grad.layout.dtype.enumv()) {
         support_dtype(dtype::Float32);
         support_dtype(dtype::BFloat16);
+        support_dtype(dtype::Float16);
         default:
             megdnn_throw("unsupported dtype in remap backward cuda\n");
     }

dnn/src/cuda/remap/backward_data.cu

@@ -155,6 +155,7 @@ void backwarddata_proxy(
 
 FOR_FORMAT_BMODE(float)
 DNN_INC_FLOAT16(FOR_FORMAT_BMODE(dt_bfloat16))
+DNN_INC_FLOAT16(FOR_FORMAT_BMODE(dt_float16))
 
 #undef FOR_FORMAT_BMODE
 #undef INST

dnn/src/cuda/remap/backward_mat.cpp

@@ -62,6 +62,7 @@ void RemapBackwardMatImpl::exec(
     switch (src.layout.dtype.enumv()) {
         support_dtype(dtype::Float32);
         support_dtype(dtype::BFloat16);
+        support_dtype(dtype::Float16);
         default:
             megdnn_throw("unsupported dtype in remap backward cuda\n");
     }

dnn/src/cuda/remap/backward_mat.cu

@@ -156,6 +156,7 @@ void backwardmat_proxy(
 
 FOR_FORMAT_BMODE(float)
 DNN_INC_FLOAT16(FOR_FORMAT_BMODE(dt_bfloat16))
+DNN_INC_FLOAT16(FOR_FORMAT_BMODE(dt_float16))
 
 #undef FOR_FORMAT_BMODE
 #undef INST

dnn/src/naive/remap/opr_impl.cpp

@@ -320,6 +320,7 @@ void RemapBackwardDataImpl::exec(
 
         support_dtype(dtype::Float32);
         DNN_INC_FLOAT16(support_dtype(dtype::BFloat16));
+        DNN_INC_FLOAT16(support_dtype(dtype::Float16));
 #undef cb
 #undef support_dtype
 
@@ -371,6 +372,7 @@ void RemapBackwardMatImpl::exec(
 
         support_dtype(dtype::Float32);
         DNN_INC_FLOAT16(support_dtype(dtype::BFloat16));
+        DNN_INC_FLOAT16(support_dtype(dtype::Float16));
 #undef cb
 #undef support_dtype
 

dnn/test/cuda/remap.cpp

@@ -180,6 +180,7 @@ TEST_F(CUDA, REMAP_BACKWARD_DATA) {
                 .execs({arg.map_xy, arg.dst, arg.src});                      \
     }
     cb(dtype::BFloat16(), float_rng);
+    cb(dtype::Float16(), float_rng);
 #undef cb
 }
 
@@ -222,6 +223,7 @@ TEST_F(CUDA, REMAP_BACKWARD_MAT) {
                 .execs({arg.src, arg.map_xy, arg.dst, arg.map_xy});          \
     }
     cb(dtype::BFloat16(), float_rng);
+    cb(dtype::Float16(), float_rng);
 #undef cb
 }