297286d734
Also puts TpuStream into the tensorflow::tpu namespace. PiperOrigin-RevId: 330606385 Change-Id: Ib59b879b71192732ceafc0d1b47a269c2676889f
86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
/* Copyright 2020 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_STREAM_EXECUTOR_TPU_TPU_STREAM_H_
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#define TENSORFLOW_STREAM_EXECUTOR_TPU_TPU_STREAM_H_
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#include "tensorflow/core/tpu/tpu_api.h"
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#include "tensorflow/stream_executor/stream_executor_internal.h"
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#include "tensorflow/stream_executor/tpu/c_api_conversions.h"
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#include "tensorflow/stream_executor/tpu/status_helper.h"
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#include "tensorflow/stream_executor/tpu/tpu_executor_c_api.h"
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#include "tensorflow/stream_executor/tpu/tpu_stream_interface.h"
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namespace tensorflow {
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namespace tpu {
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class TpuStream : public tensorflow::tpu::TpuStreamInterface {
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public:
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using Status = stream_executor::port::Status;
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explicit TpuStream(SE_Stream* stream) : stream_(stream) {}
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~TpuStream() override {
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tensorflow::tpu::ExecutorApiFn()->TpuStream_FreeFn(stream_);
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}
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bool IsSameSharedMemoryLocation(
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tensorflow::tpu::TpuStreamInterface* other) override {
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return tensorflow::tpu::ExecutorApiFn()
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->TpuStream_IsSameSharedMemoryLocationFn(
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stream_, static_cast<TpuStream*>(other)->stream_);
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}
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Status EnqueueTransferHostToDevice(
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stream_executor::DeviceMemoryBase device_dst, const void* host_src,
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uint64 size) {
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StatusHelper status;
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tensorflow::tpu::ExecutorApiFn()->TpuStream_EnqueueTransferHostToDeviceFn(
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stream_, ApiConverter::ToC(device_dst), const_cast<void*>(host_src),
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size, status.c_status);
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return status.status();
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}
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Status EnqueueTransferDeviceToHost(
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stream_executor::DeviceMemoryBase device_src, void* host_dst,
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uint64 size) {
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StatusHelper status;
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tensorflow::tpu::ExecutorApiFn()->TpuStream_EnqueueTransferDeviceToHostFn(
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stream_, ApiConverter::ToC(device_src), host_dst, size,
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status.c_status);
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return status.status();
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}
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Status EnqueueOnTpuDeviceSendRecvLocal(
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stream_executor::DeviceMemoryBase send_buffer,
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stream_executor::DeviceMemoryBase recv_buffer) override {
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StatusHelper status;
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tensorflow::tpu::ExecutorApiFn()
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->TpuStream_TpuEnqueueOnDeviceSendRecvLocalFn(
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stream_, ApiConverter::ToC(send_buffer),
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ApiConverter::ToC(recv_buffer), status.c_status);
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return status.status();
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}
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SE_Stream* se_stream() const { return stream_; }
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private:
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mutable SE_Stream* stream_;
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};
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} // namespace tpu
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} // namespace tensorflow
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#endif // TENSORFLOW_STREAM_EXECUTOR_TPU_TPU_STREAM_H_
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