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#include "caffe2/core/common_gpu.h"
#include "caffe2/core/operator.h"
#include <stdlib.h>
#include <string.h>
#include <cuda_profiler_api.h>
namespace caffe2 {
static std::vector<std::string> kCudaProfileConfiguration = {
"gpustarttimestamp",
"gpuendtimestamp",
"gridsize3d",
"threadblocksize",
"dynsmemperblock",
"stasmemperblock",
"regperthread",
"memtransfersize",
"memtransferdir",
"memtransferhostmemtype",
"streamid",
"cacheconfigrequested",
"cacheconfigexecuted",
"countermodeaggregate",
"enableonstart 0",
"active_warps",
"active_cycles",
};
class CudaProfileInitializeOp : public OperatorBase {
public:
CudaProfileInitializeOp(const OperatorDef& operator_def, Workspace* ws)
: OperatorBase(operator_def, ws),
output_(GetSingleArgument<std::string>("output", "/tmp/output")) {
std::array<char, 128> buf;
std::string tmpl = "/tmp/cuda_profile_config.XXXXXX";
CAFFE_ENFORCE_LT(tmpl.size(), buf.size());
memcpy(buf.data(), tmpl.data(), tmpl.size());
auto result = mktemp(buf.data());
CAFFE_ENFORCE_NE(strlen(result), 0, "mktemp: ", strerror(errno));
config_ = result;
// Write configuration to temporary file
{
std::ofstream ofs(config_, std::ios::out | std::ios::trunc);
CAFFE_ENFORCE(ofs.is_open(), "ofstream: ", ofs.rdstate());
for (const auto& line : kCudaProfileConfiguration) {
ofs << line << std::endl;
}
}
}
~CudaProfileInitializeOp() override {
unlink(config_.c_str());
}
bool Run(int /* unused */ /*stream_id*/ = 0) override {
// If this fails, check the contents of "output" for hints.
CUDA_CHECK(
cudaProfilerInitialize(config_.c_str(), output_.c_str(), cudaCSV));
return true;
}
protected:
std::string config_;
std::string output_;
};
class CudaProfileStartOp : public OperatorBase {
public:
CudaProfileStartOp(const OperatorDef& operator_def, Workspace* ws)
: OperatorBase(operator_def, ws) {}
bool Run(int /* unused */ /*stream_id*/ = 0) override {
CUDA_ENFORCE(cudaProfilerStart());
return true;
}
};
class CudaProfileStopOp : public OperatorBase {
public:
CudaProfileStopOp(const OperatorDef& operator_def, Workspace* ws)
: OperatorBase(operator_def, ws) {}
bool Run(int /* unused */ /*stream_id*/ = 0) override {
CUDA_ENFORCE(cudaProfilerStop());
return true;
}
};
OPERATOR_SCHEMA(CudaProfileInitialize);
OPERATOR_SCHEMA(CudaProfileStart);
OPERATOR_SCHEMA(CudaProfileStop);
REGISTER_CPU_OPERATOR(CudaProfileInitialize, CudaProfileInitializeOp);
REGISTER_CPU_OPERATOR(CudaProfileStart, CudaProfileStartOp);
REGISTER_CPU_OPERATOR(CudaProfileStop, CudaProfileStopOp);
REGISTER_CUDA_OPERATOR(CudaProfileInitialize, CudaProfileInitializeOp);
REGISTER_CUDA_OPERATOR(CudaProfileStart, CudaProfileStartOp);
REGISTER_CUDA_OPERATOR(CudaProfileStop, CudaProfileStopOp);
} // namespace caffe2
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