Stanley Tsang
120 строки
4.5 KiB
C++
120 строки
4.5 KiB
C++
/*************************************************************************
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* Copyright (c) 2019-2020 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_GroupCalls.hpp"
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#include "test_AllGather.hpp"
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#include "test_AllReduce.hpp"
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#include "test_Broadcast.hpp"
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#include "test_Reduce.hpp"
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#include "test_ReduceScatter.hpp"
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namespace CorrectnessTests
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{
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TEST_P(GroupCallsCorrectnessTest, Correctness)
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{
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if (numDevices > numDevicesAvailable) return;
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// Create multiple datasets for group operation
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std::vector<Dataset> datasets(5);
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for (int i = 0; i < datasets.size(); i++)
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{
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datasets[i].Initialize(numDevices, numElements, dataType, inPlace);
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FillDatasetWithPattern(datasets[i]);
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}
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// Compute expected results for each dataset in group
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int const root = 0;
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AllGatherCorrectnessTest::ComputeExpectedResults(datasets[0]);
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AllReduceCorrectnessTest::ComputeExpectedResults(datasets[1], op);
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BroadcastCorrectnessTest::ComputeExpectedResults(datasets[2], root);
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ReduceCorrectnessTest::ComputeExpectedResults(datasets[3], op, root);
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ReduceScatterCorrectnessTest::ComputeExpectedResults(datasets[4], op);
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// Start a group call
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ncclGroupStart();
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// AllGather
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size_t const byteCount = datasets[0].NumBytes() / numDevices;
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size_t const elemCount = numElements / numDevices;
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for (int i = 0; i < numDevices; i++)
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{
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ncclAllGather((int8_t *)datasets[0].inputs[i] + (i * byteCount),
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datasets[0].outputs[i], elemCount,
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dataType, comms[i], streams[i]);
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}
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// AllReduce
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for (int i = 0; i < numDevices; i++)
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{
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ncclAllReduce(datasets[1].inputs[i], datasets[1].outputs[i],
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numElements, dataType, op, comms[i], streams[i]);
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}
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// Broadcast
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for (int i = 0; i < numDevices; i++)
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{
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ncclBroadcast(datasets[2].inputs[i],
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datasets[2].outputs[i],
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numElements, dataType,
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root, comms[i], streams[i]);
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}
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// Reduce
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for (int i = 0; i < numDevices; i++)
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{
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ncclReduce(datasets[3].inputs[i],
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datasets[3].outputs[i],
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numElements, dataType, op,
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root, comms[i], streams[i]);
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}
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// ReduceScatter
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for (int i = 0; i < numDevices; i++)
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{
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ncclReduceScatter(datasets[4].inputs[i],
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(int8_t *)datasets[4].outputs[i] + (i * byteCount),
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elemCount, dataType, op,
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comms[i], streams[i]);
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}
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// Signal end of group call
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ncclGroupEnd();
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// Wait for reduction to complete
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Synchronize();
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// Check results for each collective in the group
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for (int i = 0; i < 5; i++)
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{
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ValidateResults(datasets[i]);
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datasets[i].Release();
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}
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}
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INSTANTIATE_TEST_CASE_P(GroupCallsCorrectnessSweep,
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GroupCallsCorrectnessTest,
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testing::Combine(
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// Reduction operator (not used)
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testing::Values(ncclSum),
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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(3072, 3145728),
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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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} // namespace
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