fix master_grad bug (#62100)

heavyrain-lzy · web-flow · commit 8f490c57eb90 · 2024-02-27T16:06:39.000+08:00
diff --git a/paddle/phi/api/lib/tensor.cc b/paddle/phi/api/lib/tensor.cc
@@ -153,6 +153,9 @@ bool Tensor::is_dense_tensor() const {
   return phi::DenseTensor::classof(impl_.get());
 }
 bool Tensor::is_dist_tensor() const {
+  if (impl_.get() == nullptr) {
+    return false;
+  }
   return phi::distributed::DistTensor::classof(impl_.get());
 }
 bool Tensor::is_selected_rows() const {

Original file line number	Diff line number	Diff line change
`@@ -153,6 +153,9 @@ bool Tensor::is_dense_tensor() const {`
`153`	`153`	`return phi::DenseTensor::classof(impl_.get());`
`154`	`154`	`}`
`155`	`155`	`bool Tensor::is_dist_tensor() const {`
	`156`	`+ if (impl_.get() == nullptr) {`
	`157`	`+ return false;`
	`158`	`+ }`
`156`	`159`	`return phi::distributed::DistTensor::classof(impl_.get());`
`157`	`160`	`}`
`158`	`161`	`bool Tensor::is_selected_rows() const {`