[Tensor Operants & Prim-Relevant] Multiply operants replace by scale (#51469)

paddle/fluid/prim/api/auto_code_generated/tensor_operants_gen.py

@@ -102,7 +102,7 @@ Tensor EagerTensorOperants::subtract(const Tensor& x, const Scalar& y) {
 }
 
 Tensor EagerTensorOperants::multiply(const Tensor& x, const Scalar& y) {
-  return ::multiply_ad_func(x, ::full_like_ad_func(x, y));
+  return ::scale_ad_func(x, y, 0.0f, true);
 }
 
 Tensor EagerTensorOperants::divide(const Tensor& x, const Scalar& y) {
@@ -118,7 +118,7 @@ Tensor EagerTensorOperants::subtract(const Scalar& x, const Tensor& y) {
 }
 
 Tensor EagerTensorOperants::multiply(const Scalar& x, const Tensor& y) {
-  return ::multiply_ad_func(::full_like_ad_func(y, x), y);
+  return ::scale_ad_func(y, x, 0.0f, true);
 }
 
 Tensor EagerTensorOperants::divide(const Scalar& x, const Tensor& y) {
@@ -229,7 +229,7 @@ Tensor StaticTensorOperants::subtract(const Tensor& x, const Scalar& y) {
 }
 
 Tensor StaticTensorOperants::multiply(const Tensor& x, const Scalar& y) {
-  return paddle::prim::multiply<DescTensor>(x, paddle::prim::full<DescTensor>(x.shape(), y, x.dtype(), x.place()));
+  return paddle::prim::scale<DescTensor>(x, y, 0.0f, true);
 }
 
 Tensor StaticTensorOperants::divide(const Tensor& x, const Scalar& y) {
@@ -245,7 +245,7 @@ Tensor StaticTensorOperants::subtract(const Scalar& x, const Tensor& y) {
 }
 
 Tensor StaticTensorOperants::multiply(const Scalar& x, const Tensor& y) {
-  return paddle::prim::multiply<DescTensor>(paddle::prim::full<DescTensor>(y.shape(), x, y.dtype(), y.place()), y);
+  return paddle::prim::scale<DescTensor>(y, x, 0.0f, true);
 }
 
 Tensor StaticTensorOperants::divide(const Scalar& x, const Tensor& y) {

paddle/phi/api/yaml/generator/tensor_operants_gen.py

@@ -277,7 +277,7 @@ Tensor PhiTensorOperants::subtract(const Tensor& x, const Scalar& y) {
 }
 
 Tensor PhiTensorOperants::multiply(const Tensor& x, const Scalar& y) {
-  return paddle::experimental::multiply(x, paddle::experimental::full_like(x, y));
+  return paddle::experimental::scale(x, y, 0.0f, true);
 }
 
 Tensor PhiTensorOperants::divide(const Tensor& x, const Scalar& y) {
@@ -293,7 +293,7 @@ Tensor PhiTensorOperants::subtract(const Scalar& x, const Tensor& y) {
 }
 
 Tensor PhiTensorOperants::multiply(const Scalar& x, const Tensor& y) {
-  return paddle::experimental::multiply(paddle::experimental::full_like(y, x), y);
+  return paddle::experimental::scale(y, x, 0.0f, true);
 }
 
 Tensor PhiTensorOperants::divide(const Scalar& x, const Tensor& y) {