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// This file defines the StreamExecutor trace listener, used for inserting
// non-device-specific instrumentation into the StreamExecutor.
#ifndef TENSORFLOW_STREAM_EXECUTOR_TRACE_LISTENER_H_
#define TENSORFLOW_STREAM_EXECUTOR_TRACE_LISTENER_H_
#include "tensorflow/stream_executor/device_memory.h"
#include "tensorflow/stream_executor/kernel.h"
#include "tensorflow/stream_executor/launch_dim.h"
#include "tensorflow/stream_executor/lib/status.h"
namespace perftools {
namespace gputools {
class Stream;
// Traces StreamExecutor PIMPL-level events.
// The few StreamExecutor interfaces that are synchronous have both Begin and
// Complete versions of their trace calls. Asynchronous operations only have
// Submit calls, as execution of the underlying operations is device-specific.
// As all tracing calls mirror StreamExecutor routines, documentation here is
// minimal.
//
// All calls have default implementations that perform no work; subclasses
// should override functionality of interest. Keep in mind that these routines
// are not called on a dedicated thread, so callbacks should execute quickly.
//
// Note: This API is constructed on an as-needed basis. Users should add
// support for further StreamExecutor operations as required. By enforced
// convention (see SCOPED_TRACE in stream_executor_pimpl.cc), synchronous
// tracepoints should be named NameBegin and NameComplete.
class TraceListener {
public:
virtual ~TraceListener() {}
virtual void LaunchSubmit(Stream* stream, const ThreadDim& thread_dims,
const BlockDim& block_dims,
const KernelBase& kernel,
const std::vector<KernelArg>& args) {}
virtual void SynchronousMemcpyH2DBegin(int64 correlation_id,
const void* host_src, int64 size,
DeviceMemoryBase* gpu_dst) {}
virtual void SynchronousMemcpyH2DComplete(int64 correlation_id,
const port::Status* result) {}
virtual void SynchronousMemcpyD2HBegin(int64 correlation_id,
const DeviceMemoryBase& gpu_src,
int64 size, void* host_dst) {}
virtual void SynchronousMemcpyD2HComplete(int64 correlation_id,
const port::Status* result) {}
virtual void BlockHostUntilDoneBegin(int64 correlation_id, Stream* stream) {}
virtual void BlockHostUntilDoneComplete(int64 correlation_id, bool result) {}
};
} // namespace gputools
} // namespace perftools
#endif // TENSORFLOW_STREAM_EXECUTOR_TRACE_LISTENER_H_
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