Add output defines for graph_sample_neighbors and group_norm (#51503)

* regist output type for GraphSampleNeighbors and GroupNorm

* Update return type

* fix return type

* update

* fix detail

paddle/fluid/framework/new_executor/interpreter/interpreter_util.cc

@@ -56,8 +56,6 @@ static std::set<std::string> OpsNeedSetOutputDtypeWhenRegisterPhiKernel = {
     "any_raw",
     "eig_grad",
     "eigh",
-    "graph_sample_neighbors",
-    "group_norm",
     "lamb",
     "layer_norm",
     "layer_norm_grad",

paddle/phi/kernels/cpu/graph_sample_neighbors_kernel.cc

@@ -226,4 +226,6 @@ PD_REGISTER_KERNEL(graph_sample_neighbors,
                    ALL_LAYOUT,
                    phi::GraphSampleNeighborsKernel,
                    int,
-                   int64_t) {}
+                   int64_t) {
+  kernel->OutputAt(1).SetDataType(phi::DataType::INT32);
+}

paddle/phi/kernels/gpu/graph_sample_neighbors_kernel.cu

@@ -483,4 +483,6 @@ PD_REGISTER_KERNEL(graph_sample_neighbors,
                    ALL_LAYOUT,
                    phi::GraphSampleNeighborsKernel,
                    int,
-                   int64_t) {}
+                   int64_t) {
+  kernel->OutputAt(1).SetDataType(phi::DataType::INT32);
+}

paddle/phi/kernels/gpu/group_norm_kernel.cu

@@ -347,4 +347,10 @@ PD_REGISTER_KERNEL(group_norm,
                    float,
                    double,
                    phi::dtype::bfloat16,
-                   phi::dtype::float16) {}
+                   phi::dtype::float16) {
+  if (kernel_key.dtype() == phi::DataType::BFLOAT16 ||
+      kernel_key.dtype() == phi::DataType::FLOAT16) {
+    kernel->OutputAt(1).SetDataType(phi::DataType::FLOAT32);
+    kernel->OutputAt(2).SetDataType(phi::DataType::FLOAT32);
+  }
+}