/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#ifndef TENSORFLOW_CORE_DISTRIBUTED_RUNTIME_COLLECTIVE_RMA_DISTRIBUTED_H_
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#define TENSORFLOW_CORE_DISTRIBUTED_RUNTIME_COLLECTIVE_RMA_DISTRIBUTED_H_
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#include "tensorflow/core/common_runtime/collective_rma_local.h"
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#include "tensorflow/core/framework/tensor.h"
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namespace tensorflow {
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class WorkerCacheInterface;
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// Extend CollectiveRemoteAccessLocal with access to remote peers.
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class CollectiveRemoteAccessDistributed : public CollectiveRemoteAccessLocal {
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public:
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CollectiveRemoteAccessDistributed(const DeviceMgr* dev_mgr,
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DeviceResolverInterface* dev_resolver,
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WorkerCacheInterface* worker_cache,
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int64 step_id)
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: CollectiveRemoteAccessLocal(dev_mgr, dev_resolver, step_id),
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worker_cache_(worker_cache) {}
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~CollectiveRemoteAccessDistributed() override {}
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void RecvFromPeer(const string& peer_device, const string& peer_task,
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bool peer_is_local, const string& key, Device* to_device,
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DeviceContext* to_device_ctx,
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const AllocatorAttributes& to_alloc_attr, Tensor* to_tensor,
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const DeviceLocality& client_locality,
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int dev_to_dev_stream_index,
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const StatusCallback& done) override;
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void StartAbort(const Status& s) override;
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protected:
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WorkerCacheInterface* worker_cache_; // Not owned
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CancellationManager cancel_mgr_;
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};
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} // namespace tensorflow
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#endif // TENSORFLOW_CORE_DISTRIBUTED_RUNTIME_COLLECTIVE_RMA_DISTRIBUTED_H_
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