pytorch/test/cpp/api/parallel_benchmark.cpp
Nikita Shulga 4cb534f92e Make PyTorch code-base clang-tidy compliant (#56892)
Summary:
This is an automatic change generated by the following script:
```
#!/usr/bin/env python3
from subprocess import check_output, check_call
import os

def get_compiled_files_list():
    import json
    with open("build/compile_commands.json") as f:
        data = json.load(f)
    files = [os.path.relpath(node['file']) for node in data]
    for idx, fname in enumerate(files):
        if fname.startswith('build/') and fname.endswith('.DEFAULT.cpp'):
            files[idx] = fname[len('build/'):-len('.DEFAULT.cpp')]
    return files

def run_clang_tidy(fname):
    check_call(["python3", "tools/clang_tidy.py", "-c", "build", "-x", fname,"-s"])
    changes = check_output(["git", "ls-files", "-m"])
    if len(changes) == 0:
        return
    check_call(["git", "commit","--all", "-m", f"NOLINT stubs for {fname}"])

def main():
    git_files = check_output(["git", "ls-files"]).decode("ascii").split("\n")
    compiled_files = get_compiled_files_list()
    for idx, fname in enumerate(git_files):
        if fname not in compiled_files:
            continue
        if fname.startswith("caffe2/contrib/aten/"):
            continue
        print(f"[{idx}/{len(git_files)}] Processing {fname}")
        run_clang_tidy(fname)

if __name__ == "__main__":
    main()
```

Pull Request resolved: https://github.com/pytorch/pytorch/pull/56892

Reviewed By: H-Huang

Differential Revision: D27991944

Pulled By: malfet

fbshipit-source-id: 5415e1eb2c1b34319a4f03024bfaa087007d7179
2021-04-28 14:10:25 -07:00

91 lines
2.2 KiB
C++

#include <torch/torch.h>
#include <chrono>
#include <condition_variable>
#include <mutex>
class Baton {
public:
void post() {
std::unique_lock<std::mutex> l(lock_);
done_ = true;
cv_.notify_all();
}
void wait() {
std::unique_lock<std::mutex> l(lock_);
while (!done_) {
cv_.wait(l);
}
}
private:
std::mutex lock_;
std::condition_variable cv_;
bool done_{false};
};
void AtLaunch_Base(int32_t numIters) {
struct Helper {
explicit Helper(int32_t lim) : limit_(lim) {}
void operator()() {
if (++val_ == limit_) {
done.post();
} else {
at::launch([this]() { (*this)(); });
}
}
int val_{0};
int limit_;
Baton done;
};
Helper h(numIters);
auto start = std::chrono::system_clock::now();
h();
h.done.wait();
std::cout << "NoData "
<< static_cast<double>(
std::chrono::duration_cast<std::chrono::microseconds>(
std::chrono::system_clock::now() - start)
.count()) /
static_cast<double>(numIters)
<< " usec/each\n";
}
void AtLaunch_WithData(int32_t numIters, int32_t vecSize) {
struct Helper {
explicit Helper(int32_t lim) : limit_(lim) {}
void operator()(std::vector<int32_t> v) {
if (++val_ == limit_) {
done.post();
} else {
at::launch([this, v = std::move(v)]() { (*this)(v); });
}
}
int val_{0};
int limit_;
Baton done;
};
Helper h(numIters);
std::vector<int32_t> v(vecSize, 0);
auto start = std::chrono::system_clock::now();
h(v);
h.done.wait();
std::cout << "WithData(" << vecSize << "): "
<< static_cast<double>(
std::chrono::duration_cast<std::chrono::microseconds>(
std::chrono::system_clock::now() - start)
.count()) /
static_cast<double>(numIters)
<< " usec/each\n";
}
int main(int argc, char** argv) {
// NOLINTNEXTLINE(cppcoreguidelines-avoid-magic-numbers)
int32_t N = 1000000;
AtLaunch_Base(N);
AtLaunch_WithData(N, 0);
AtLaunch_WithData(N, 4);
// NOLINTNEXTLINE(cppcoreguidelines-avoid-magic-numbers)
AtLaunch_WithData(N, 256);
return 0;
}