EVOLUTION-MANAGER

Edit File: collective_order.h

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==============================================================================*/
#ifndef TENSORFLOW_CORE_GRAPH_COLLECTIVE_ORDER_H_
#define TENSORFLOW_CORE_GRAPH_COLLECTIVE_ORDER_H_

#include "tensorflow/core/graph/graph.h"

namespace tensorflow {

enum class GraphCollectiveOrder { kNone, kEdges, kAttrs };

// Introduces a deterministic execution order between potentially concurrent
// CollectiveOps.  This may be used to execute collectives in the same order
// across all workers in a distributed execution, if all workers are executing
// the same graph.
// If `order_type` is `kEdges`, introduce the ordering in the form of explicit
// control edges between collective graph nodes.  If `order_type` is `kAttrs`,
// add an attribute to the node which may be used by collective executor to
// ensure the required ordering.
Status OrderCollectives(Graph* graph, GraphCollectiveOrder order_type);

}  // namespace tensorflow

#endif  // TENSORFLOW_CORE_GRAPH_COLLECTIVE_ORDER_H_