1 files changed, 30 insertions, 0 deletions
diff --git a/tensorflow/core/common_runtime/gpu/gpu_stream_util.h b/tensorflow/core/common_runtime/gpu/gpu_stream_util.h
new file mode 100644
index 0000000000..e1c623382c
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+++ b/tensorflow/core/common_runtime/gpu/gpu_stream_util.h
@@ -0,0 +1,30 @@
+#ifndef TENSORFLOW_COMMON_RUNTIME_GPU_GPU_STREAM_UTIL_H_
+#define TENSORFLOW_COMMON_RUNTIME_GPU_GPU_STREAM_UTIL_H_
+
+#include <unordered_map>
+
+#include "tensorflow/core/graph/graph.h"
+#include "tensorflow/core/public/status.h"
+
+namespace tensorflow {
+namespace gpu_stream_util {
+
+struct AssignStreamsOpts {
+  int32 max_streams = 1;
+  // The following options specify a stream to use for specific op
+  // types.  The value -1 allows ops to be assigned to any stream.
+  int32 send_stream = -1;
+  int32 recv_stream = -1;
+  int32 const_stream = -1;
+  int32 compute_stream = -1;
+};
+
+// Given the input graph, assigns every node in the graph with a
+// stream_id that should be used.
+Status AssignStreams(const Graph* graph, const AssignStreamsOpts& opts,
+                     std::unordered_map<int, int>* node_to_stream_id);
+
+}  // namespace gpu_stream_util
+}  // namespace tensorflow
+
+#endif  // TENSORFLOW_COMMON_RUNTIME_GPU_GPU_STREAM_UTIL_H_