86 sor
2.8 KiB
C++
86 sor
2.8 KiB
C++
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/*************************************************************************
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* Copyright (c) 2025 Advanced Micro Devices, Inc. All rights reserved.
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*
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* See LICENSE.txt for license information
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************************************************************************/
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/**
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* @file main_mpi.cpp
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* @brief Main entry point for Google Test-based MPI tests
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*
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* This file provides the main() function for running GTest-based MPI tests.
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* For standalone tests (performance benchmarks, etc.), each test should have
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* its own main() function and use MPIHelpers for common functionality.
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*/
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#include <cstdio>
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#include <cstdlib>
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#include <gtest/gtest.h>
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#ifdef MPI_TESTS_ENABLED
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#include "MPIHelpers.hpp"
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#include "MPITestBase.hpp"
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#include "MPIEnvironment.hpp"
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int main(int argc, char* argv[])
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{
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// Initialize MPI using shared helper
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auto mpi_ctx = MPIHelpers::initializeMPI(&argc, &argv);
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const auto world_rank = mpi_ctx.world_rank;
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const auto world_size = mpi_ctx.world_size;
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// Setup per-rank logging using shared helper
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auto rank_log_config = MPIHelpers::setupRankLogging(world_rank);
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const auto per_rank_logging_enabled = rank_log_config && rank_log_config->logging_enabled;
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// Print initialization message
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if(world_rank == 0 && !per_rank_logging_enabled)
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{
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TEST_INFO("MPI initialized - World size: %d, Thread support: %d",
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world_size,
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mpi_ctx.thread_support);
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}
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// Initialize Google Test
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::testing::InitGoogleTest(&argc, argv);
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// Suppress GTest output for non-zero ranks (unless per-rank logging is enabled)
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// This is done by deleting GTest listeners for non-zero ranks
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// Note: stdout/stderr are already redirected for non-zero ranks by setupRankLogging
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if(world_rank != 0 && !per_rank_logging_enabled)
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{
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auto& listeners = ::testing::UnitTest::GetInstance()->listeners();
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delete listeners.Release(listeners.default_result_printer());
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delete listeners.Release(listeners.default_xml_generator());
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}
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// Set up the RCCL MPI environment for all tests
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::testing::AddGlobalTestEnvironment(new MPIEnvironment());
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// Run all tests
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const auto ret_code = RUN_ALL_TESTS();
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// Restore original output if per-rank logging was enabled
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if(rank_log_config)
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{
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MPIHelpers::restoreRankLogging(*rank_log_config);
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}
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// MPI_Finalize called by MPIEnvironment destructor
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return ret_code;
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}
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#else // MPI_TESTS_ENABLED not defined
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int main([[maybe_unused]] int argc, [[maybe_unused]] char* argv[])
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{
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std::fprintf(stderr,
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"ERROR: MPI tests are not enabled. Please build with ENABLE_MPI_TESTS=ON\n");
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std::fprintf(stderr, "Usage: cmake -DENABLE_MPI_TESTS=ON -DMPI_PATH=/path/to/mpi ..\n");
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return 1;
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}
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#endif // MPI_TESTS_ENABLED
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