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64d837f9ab
Add executor to execute the JSON schedule file generated by msccl-tools --------- Co-authored-by: Changho Hwang <changhohwang@microsoft.com>
59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT license.
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#include <mpi.h>
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#include <filesystem>
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#include "mp_unit_tests.hpp"
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namespace {
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std::string getExecutablePath() {
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char result[PATH_MAX];
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ssize_t count = readlink("/proc/self/exe", result, PATH_MAX);
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if (count == -1) {
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throw std::runtime_error("Failed to get executable path");
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}
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return std::string(result, count);
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}
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} // namespace
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void ExecutorTest::SetUp() {
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MultiProcessTest::SetUp();
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MSCCLPP_CUDATHROW(cudaSetDevice(rankToLocalRank(gEnv->rank)));
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std::shared_ptr<mscclpp::TcpBootstrap> bootstrap;
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mscclpp::UniqueId id;
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if (gEnv->rank < gEnv->worldSize) {
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bootstrap = std::make_shared<mscclpp::TcpBootstrap>(gEnv->rank, gEnv->worldSize);
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if (gEnv->rank == 0) id = bootstrap->createUniqueId();
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}
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MPI_Bcast(&id, sizeof(id), MPI_BYTE, 0, MPI_COMM_WORLD);
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bootstrap->initialize(id);
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std::shared_ptr<mscclpp::Communicator> communicator = std::make_shared<mscclpp::Communicator>(bootstrap);
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executor = std::make_shared<mscclpp::Executor>(communicator);
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}
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void ExecutorTest::TearDown() {
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executor.reset();
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MultiProcessTest::TearDown();
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}
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TEST_F(ExecutorTest, TwoNodesAllreduce) {
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if (gEnv->worldSize != 2 || gEnv->nRanksPerNode != 2) {
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GTEST_SKIP() << "This test requires world size to be 2 and ranks per node to be 2";
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return;
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}
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std::string executablePath = getExecutablePath();
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std::filesystem::path path = executablePath;
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std::filesystem::path executionFilesPath =
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path.parent_path().parent_path().parent_path() / "test/execution-files/allreduce.json";
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mscclpp::ExecutionPlan plan("allreduce_pairs", executionFilesPath.string());
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const int bufferSize = 1024 * 1024;
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std::shared_ptr<char> sendbuff = mscclpp::allocExtSharedCuda<char>(bufferSize);
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mscclpp::CudaStreamWithFlags stream(cudaStreamNonBlocking);
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executor->execute(gEnv->rank, sendbuff.get(), sendbuff.get(), bufferSize, bufferSize, mscclpp::DataType::FLOAT16, 512,
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plan, stream);
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MSCCLPP_CUDATHROW(cudaStreamSynchronize(stream));
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}
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