Merge pull request PaddlePaddle#13 from lxsbupt/gpugraph

Add gpu_graph_utils.h

paddle/fluid/framework/fleet/heter_ps/gpu_graph_utils.h

@@ -0,0 +1,46 @@
+// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace paddle {
+namespace framework {
+
+#include <stdio.h>
+#include <cuda.h>
+#include <cuda_runtime.h>
+#include <device_launch_parameters.h>
+#include "paddle/fluid/platform/enforce.h"
+
+inline void debug_gpu_memory_info() {
+  int device_num = 0;
+  auto err = cudaGetDeviceCount(&device_num);
+  PADDLE_ENFORCE_EQ(err, cudaSuccess,
+          platform::errors::InvalidArgument("cudaGetDeviceCount failed!"));
+
+  size_t avail{0};
+  size_t total{0};
+  for (int i = 0; i < device_num; ++i) {
+    cudaSetDevice(i);
+    auto err = cudaMemGetInfo(&avail, &total);
+    PADDLE_ENFORCE_EQ(err, cudaSuccess,
+            platform::errors::InvalidArgument("cudaMemGetInfo failed!"));
+    VLOG(0) << "update gpu memory!!! "
+            << "avail=" << avail << ", "
+            << "total=" << total << ", "
+            << "ratio=" << (total-avail)/double(total);
+  }
+}
+
+}; // namespace framework
+}; // namespace paddle
+