!8648 PyNative Performance Optimization

From: @jojobugfree
Reviewed-by: 
Signed-off-by:

mindspore/ccsrc/backend/optimizer/gpu/batch_norm_relu_grad_fusion.cc

@@ -24,6 +24,7 @@
 #include "utils/utils.h"
 #include "backend/optimizer/common/helper.h"
 #include "runtime/device/gpu/kernel_info_setter.h"
+#include "utils/ms_context.h"
 
 namespace mindspore {
 namespace opt {
@@ -41,6 +42,11 @@ const AnfNodePtr BatchNormReluGradFusion::Process(const FuncGraphPtr &graph, con
   auto format_attr = AnfAlgo::GetCNodePrimitive(node)->GetAttr("data_format");
   MS_EXCEPTION_IF_NULL(format_attr);
   auto format = GetValue<std::string>(format_attr);
+  auto ms_context = MsContext::GetInstance();
+  MS_EXCEPTION_IF_NULL(ms_context);
+  if (ms_context->get_param<int>(MS_CTX_EXECUTION_MODE) == kPynativeMode) {
+    return nullptr;
+  }
   if (AnfAlgo::GetInputFormat(node, 0) != kOpFormat_NHWC && format != "NHWC") {
     return nullptr;
   }

mindspore/ccsrc/backend/session/gpu_session.cc

@@ -248,7 +248,8 @@ void GPUSession::LoadInputData(const std::shared_ptr<KernelGraph> &kernel_graph,
         }
       }
       if (need_sync) {
-        if (AnfAlgo::IsParameterWeight(input_node->cast<ParameterPtr>())) {
+        if (AnfAlgo::IsParameterWeight(input_node->cast<ParameterPtr>()) ||
+            ms_context->get_param<int>(MS_CTX_EXECUTION_MODE) == kPynativeMode) {
           tensor->set_device_address(device_address);
         }
         MS_EXCEPTION_IF_NULL(device_address);

mindspore/nn/optim/lars.py

@@ -91,6 +91,7 @@ class LARS(Optimizer):
         self.learning_rate = Parameter(Tensor(0.0, dtype=mstype.float32), name="fake_lr")
         self.decay_flags = optimizer.decay_flags
         self.reciprocal_scale = optimizer.reciprocal_scale
+        self.need_scale = optimizer.need_scale
         self.hyper_map = C.HyperMap()
         self.lars = P.LARSUpdate(epsilon, coefficient, use_clip)
         self.cast = P.Cast()
@@ -136,7 +137,7 @@ class LARS(Optimizer):
         else:
             lr = self.learning_rate
 
-        if self.reciprocal_scale != 1.0:
+        if self.need_scale:
             gradients = self.hyper_map(F.partial(_grad_scale, self.reciprocal_scale), gradients)
 
         if self.is_group:

mindspore/nn/optim/optimizer.py

@@ -138,12 +138,14 @@ class Optimizer(Cell):
         if self.is_group:
             self.parameters = ParameterTuple(self.group_params)
             self.weight_decay = tuple(self.group_weight_decay)
+            self.weight_decay_tensor_tuple = tuple(Tensor(x, mstype.float32) for x in self.group_weight_decay)
             decay_filter = lambda x: x > 0
             self.decay_flags = tuple(decay_filter(x) for x in self.weight_decay)
             self.exec_weight_decay = any(self.decay_flags)
         else:
             self.parameters = ParameterTuple(parameters)
             self.weight_decay = weight_decay * loss_scale
+            self.weight_decay_tensor = Tensor(self.weight_decay, mstype.float32)
             decay_filter = lambda x: 'beta' not in x.name and 'gamma' not in x.name
             self.decay_flags = tuple(decay_filter(x) for x in self.parameters)
             self.exec_weight_decay = self.weight_decay > 0
@@ -154,7 +156,8 @@ class Optimizer(Cell):
                 break
         ps_filter = lambda x: x.is_param_ps
         self.ps_parameters = tuple(ps_filter(x) for x in self.parameters)
-        self.reciprocal_scale = 1.0 / loss_scale
+        self.reciprocal_scale = Tensor(1.0 / loss_scale, mstype.float32)
+        self.need_scale = loss_scale != 1.0
         self.param_length = len(self.parameters)
         self.map_ = C.Map()
         if context.get_auto_parallel_context("enable_parallel_optimizer"):
@@ -222,10 +225,10 @@ class Optimizer(Cell):
         if self.exec_weight_decay:
             params = self.parameters
             if self.is_group:
-                gradients = self.map_(F.partial(_apply_decay), self.weight_decay, self.decay_flags,
+                gradients = self.map_(F.partial(_apply_decay), self.weight_decay_tensor_tuple, self.decay_flags,
                                       params, gradients)
             else:
-                gradients = self.map_(F.partial(_apply_decay, self.weight_decay), self.decay_flags,
+                gradients = self.map_(F.partial(_apply_decay, self.weight_decay_tensor), self.decay_flags,
                                       params, gradients)
 
         return gradients
@@ -245,7 +248,7 @@ class Optimizer(Cell):
             tuple[Tensor], The gradients after loss scale.
 
         """
-        if self.reciprocal_scale != 1.0:
+        if self.need_scale:
             gradients = self.map_(F.partial(_grad_scale, self.reciprocal_scale), gradients)
 
         return gradients
@@ -529,11 +532,12 @@ class Optimizer(Cell):
 
 op_add = P.AddN()
 op_gather = P.GatherV2()
+op_mul = P.Mul()
 
 _apply_decay = C.MultitypeFuncGraph("apply_decay")
 
 
-@_apply_decay.register("Number", "Bool", "Tensor", "RowTensor")
+@_apply_decay.register("Tensor", "Bool", "Tensor", "RowTensor")
 def _tensor_apply_decay_with_sparse(weight_decay, if_apply, weight, gradient):
     """Get grad with weight_decay."""
     if if_apply:
@@ -544,11 +548,11 @@ def _tensor_apply_decay_with_sparse(weight_decay, if_apply, weight, gradient):
     return gradient
 
 
-@_apply_decay.register("Number", "Bool", "Tensor", "Tensor")
+@_apply_decay.register("Tensor", "Bool", "Tensor", "Tensor")
 def _tensor_apply_decay(weight_decay, if_apply, weight, gradient):
     """Get grad with weight_decay."""
     if if_apply:
-        return op_add((weight * weight_decay, gradient))
+        return op_add((op_mul(weight, weight_decay), gradient))
     return gradient
 
 
@@ -560,14 +564,16 @@ def tensor_grad_scale(scale, grad):
     """Get grad with scale."""
     if scale == 1.0:
         return grad
-    return grad * scale
+    return op_mul(grad, scale)
 
+@_grad_scale.register("Tensor", "Tensor")
+def tensor_grad_scale_with_tensor(scale, grad):
+    """Get grad with scale."""
+    return op_mul(grad, scale)
 
-@_grad_scale.register("Number", "RowTensor")
+@_grad_scale.register("Tensor", "RowTensor")
 def tensor_grad_scale_with_sparse(scale, grad):
     """Get grad with scale."""
-    if scale == 1.0:
-        return grad
     return RowTensor(grad.indices, grad.values * scale, grad.dense_shape)