73 lines
2.6 KiB
C++
73 lines
2.6 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_EXECUTABLE_H_
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#define TENSORFLOW_STREAM_EXECUTOR_TPU_TPU_EXECUTABLE_H_
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#include <functional>
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#include <memory>
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#include "absl/types/optional.h"
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#include "absl/types/span.h"
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#include "tensorflow/compiler/xla/service/hlo_module.h"
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#include "tensorflow/compiler/xla/service/service_executable_run_options.h"
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#include "tensorflow/compiler/xla/shape.h"
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#include "tensorflow/compiler/xla/status.h"
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#include "tensorflow/compiler/xla/types.h"
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#include "tensorflow/core/tpu/tpu_ops_c_api.h"
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#include "tensorflow/stream_executor/device_memory.h"
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#include "tensorflow/stream_executor/tpu/tpu_executable_interface.h"
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namespace xla {
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// An executable capable of being fed to a TPU device via TpuExecutor.
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class TpuExecutable : public TpuExecutableInterface {
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public:
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using HostCommandHandler = std::function<void(uint32, int64)>;
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// Constructs an executable that holds a non-owning reference to an
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// XLA_TpuProgram.
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explicit TpuExecutable(const XLA_TpuProgram* core_program,
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std::unique_ptr<HloModule> hlo_module,
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HostCommandHandler host_command_handler = nullptr);
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~TpuExecutable() override = default;
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const XLA_TpuProgram* core_program() const { return core_program_; }
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absl::string_view fingerprint() const override;
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private:
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Status LoadProgramAndEnqueueToStream(
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const ServiceExecutableRunOptions& run_options,
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absl::Span<const stream_executor::DeviceMemoryBase> arguments,
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stream_executor::DeviceMemoryBase result,
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absl::optional<stream_executor::DeviceMemoryBase>
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cross_program_prefetch_addr) override;
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Shape HostShapeToDeviceShape(const Shape& host_shape) override;
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int64 ShapeSize(const Shape& shape) override;
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const XLA_TpuProgram* const core_program_;
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const HostCommandHandler host_command_handler_;
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TF_DISALLOW_COPY_AND_ASSIGN(TpuExecutable);
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};
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} // namespace xla
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#endif // TENSORFLOW_STREAM_EXECUTOR_TPU_TPU_EXECUTABLE_H_
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