| # coding=utf-8 |
| # Copyright 2020 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| """Common benchmarking utilities between chromium and the llvm test suite |
| """ |
| |
| import subprocess |
| import os |
| import shutil |
| import tensorflow |
| import json |
| |
| from typing import Optional, List |
| |
| |
| def build_llvm(model_path: str, use_existing_build: bool, llvm_build_path: str, |
| llvm_source_path: Optional[str]): |
| """Builds LLVM/clang with the specified model and the correct settings |
| |
| This function invokes CMake with all the correct build flags specified |
| so that the resulting LLVM build is fully setup for the rest of the |
| benchmarking process. |
| |
| Args: |
| model_path: The path to the TF saved model that will be benchmarked |
| use_existing_build: Whether or not to do an incremental build |
| llvm_build_path: The path to where the LLVM build will go |
| llvm_source_path: The path to the root of the llvm-project repository |
| tensorflow_c_lib_path: The path to the tensorflow c lib path |
| |
| Note: llvm_source_path and tensorflow_c_lib_path aren't necessary if you have |
| set use_existing_build to true, you just need to make sure that the existing |
| build is already set up to enable the necessary MLGO flags. |
| """ |
| if not use_existing_build and os.path.exists(llvm_build_path): |
| shutil.rmtree(llvm_build_path) |
| |
| if not os.path.exists(llvm_build_path): |
| os.makedirs(llvm_build_path) |
| |
| cmake_config_command = [ |
| "cmake", "-G", "Ninja", f"-DLLVM_RAEVICT_MODEL_PATH={model_path}" |
| ] |
| |
| if use_existing_build: |
| cmake_config_command.append(".") |
| else: |
| tensorflow_aot_path = os.path.dirname(tensorflow.__file__) |
| cmake_config_command.extend([ |
| "-DCMAKE_BUILD_TYPE=Release", |
| f"-DTENSORFLOW_AOT_PATH='{tensorflow_aot_path}'", |
| "-DLLVM_ENABLE_PROJECTS='clang;lld'", |
| "-DLLVM_ENABLE_RUNTIMES='compiler-rt'", f"{llvm_source_path}" |
| ]) |
| |
| with subprocess.Popen( |
| cmake_config_command, cwd=llvm_build_path) as cmake_config_process: |
| cmake_config_process.wait() |
| |
| cmake_compile_command = ["cmake", "--build", "."] |
| with subprocess.Popen( |
| cmake_compile_command, cwd=llvm_build_path) as cmake_compile_process: |
| cmake_compile_process.wait() |
| |
| |
| def run_microbenchmark(executable: str, perf_counters: List[str]): |
| """Runs all the tests in a specific google benchmark binary |
| |
| This function takes in an executable and performance counters according to the |
| libpfm naming scheme and then returns the output in the google benchmark |
| format. |
| |
| Args: |
| executable: path to the google benchmark executable to run tests from |
| perf_counters: a list of strings of perf counters in the libpfm format |
| """ |
| perf_counters_string = "" |
| for perf_counter in perf_counters: |
| perf_counters_string = perf_counters_string + perf_counter + "," |
| perf_counters_string = perf_counters_string[:-1] |
| test_runner_command = [ |
| executable, "--benchmark_out_format=console", |
| "--benchmark_out=/dev/stderr", "--benchmark_format=json", |
| f"--benchmark_perf_counters={perf_counters_string}" |
| ] |
| |
| with subprocess.Popen( |
| test_runner_command, stdout=subprocess.PIPE) as test_runner_process: |
| out = test_runner_process.communicate()[0] |
| |
| out_json = json.loads(out) |
| return out_json["benchmarks"] |