Stanley Tsang
72 lines
2.8 KiB
C++
72 lines
2.8 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_Scatter.hpp"
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namespace CorrectnessTests
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{
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TEST_P(ScatterCorrectnessTest, Correctness)
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{
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if (numDevices > numDevicesAvailable) return;
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// Allocate data
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Dataset dataset;
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dataset.Initialize(numDevices, numElements, dataType, inPlace, ncclCollScatter);
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// Test each possible root
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for (int root = 0; root < numDevices; root++)
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{
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// Prepare input / output / expected results
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FillDatasetWithPattern(dataset);
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ComputeExpectedResults(dataset, root);
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// Launch the reduction (1 thread per GPU)
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ncclGroupStart();
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for (int i = 0; i < numDevices; i++)
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{
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ncclScatter(dataset.inputs[i],
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dataset.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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ncclGroupEnd();
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// Wait for reduction to complete
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Synchronize();
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// Check results
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ValidateResults(dataset);
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}
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dataset.Release();
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}
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INSTANTIATE_TEST_SUITE_P(ScatterCorrectnessSweep,
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ScatterCorrectnessTest,
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testing::Combine(
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// Reduction operator is 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(1024, 1048576),
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// Number of devices
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testing::Values(2,3,4,5,6,7,8),
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// In-place or not
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testing::Values(false),
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testing::Values("RCCL_ALLTOALL_KERNEL_DISABLE=0", "RCCL_ALLTOALL_KERNEL_DISABLE=1")),
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CorrectnessTest::PrintToStringParamName());
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} // namespace
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