Stanley Tsang
d3fa257682
Adding multiprocess unit tests for collectives. To run, NCCL_COMM_ID=$HOSTNAME:12345 build/release/test/UnitTestsMultiProcess
97 wiersze
3.7 KiB
C++
97 wiersze
3.7 KiB
C++
/*************************************************************************
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* Copyright (c) 2019-2021 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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#include "test_AllReduceMultiProcess.hpp"
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namespace CorrectnessTests
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{
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TEST_P(AllReduceMultiProcessCorrectnessTest, Correctness)
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{
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Dataset* dataset = (Dataset*)mmap(NULL, sizeof(Dataset), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, 0);
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dataset->InitializeRootProcess(numDevices, numElements, dataType, inPlace, ncclCollAllReduce);
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Barrier::ClearShmFiles(std::atoi(getenv("NCCL_COMM_ID")));
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int pid1 = 0;
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int pid2 = 0;
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int pid3 = 0;
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pid1 = fork();
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// From this point on, ignore original process as we cannot have it create a HIP context
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if (pid1 == 0)
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{
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pid2 = fork();
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if (numDevices > 2)
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{
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pid3 = fork();
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}
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if ((pid2 > 0 && pid3 == 0 && numDevices == 2) || (pid2 > 0 && pid3 > 0 && numDevices > 2))
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{
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// Process 0
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TestAllReduce(0, *dataset);
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if (pid3 > 0)
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{
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waitpid(pid3, NULL, 0);
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}
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}
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else if ((pid2 == 0 && pid3 == 0 && numDevices == 2) || (pid2 == 0 && pid3 > 0 && numDevices > 2))
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{
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// Process 1
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TestAllReduce(1, *dataset);
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if (numDevices > 2)
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{
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waitpid(pid3, NULL, 0);
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}
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exit(0);
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}
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else if (pid2 > 0 && pid3 == 0 && numDevices > 2)
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{
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// Process 2 (available when numDevices > 2)
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TestAllReduce(2, *dataset);
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exit(0);
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}
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else if (pid2 == 0 && pid3 == 0 && numDevices == 4)
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{
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// Process 3 (available when numDevices == 4)
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TestAllReduce(3, *dataset);
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exit(0);
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}
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else
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{
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exit(0);
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}
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waitpid(pid2, NULL, 0);
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exit(0);
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}
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waitpid(pid1, NULL, 0);
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munmap(dataset, sizeof(Dataset));
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}
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INSTANTIATE_TEST_SUITE_P(AllReduceMultiProcessCorrectnessSweep,
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AllReduceMultiProcessCorrectnessTest,
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testing::Combine(
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// Reduction operator
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testing::Values(ncclSum, ncclProd, ncclMax, ncclMin),
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// Data types
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testing::Values(ncclInt8,
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ncclUint8,
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ncclInt32,
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ncclUint32,
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ncclInt64,
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ncclUint64,
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//ncclFloat16,
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ncclFloat32,
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ncclFloat64,
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ncclBfloat16),
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// Number of elements
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testing::Values(1024, 1048576),
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// Number of devices
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testing::Values(2,3,4),
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// In-place or not
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testing::Values(false, true),
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testing::Values("")),
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CorrectnessTest::PrintToStringParamName());
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} // namespace
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