88 行
2.7 KiB
C++
88 行
2.7 KiB
C++
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/*
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Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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// Simple test for memset.
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// Also serves as a template for other tests.
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#include "hip_runtime.h"
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#include "test_common.h"
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int main(int argc, char *argv[])
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{
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HipTest::parseStandardArguments(argc, argv, true);
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int deviceCnt;
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HIPCHECK(hipGetDeviceCount(&deviceCnt));
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HIPCHECK(hipSetDevice(p_gpuDevice));
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int peerDevice = ((p_gpuDevice + 1) % deviceCnt);
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printf ("N=%zu device=%d peerDevice=%d (%d devices total)\n", N, p_gpuDevice, peerDevice, deviceCnt);
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// Must be on a multi-gpu system:
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assert (p_gpuDevice != peerDevice);
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int canAccessPeer;
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HIPCHECK(hipDeviceCanAccessPeer(&canAccessPeer, p_gpuDevice, peerDevice));
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printf ("dev#%d canAccessPeer:#%d=%d\n", p_gpuDevice, peerDevice, canAccessPeer);
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assert(canAccessPeer);
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HIPCHECK(hipDeviceEnablePeerAccess(peerDevice, 0));
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size_t Nbytes = N*sizeof(float);
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float *A_d0, *A_d1;
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float *A_h;
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A_h = (float*)malloc(Nbytes);
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HIPCHECK (hipSetDevice(peerDevice));
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HIPCHECK (hipMalloc(&A_d1, Nbytes) );
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HIPCHECK (hipSetDevice(p_gpuDevice));
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HIPCHECK (hipMalloc(&A_d0, Nbytes) );
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// Set memory on first device.
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HIPCHECK (hipSetDevice(p_gpuDevice));
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HIPCHECK ( hipMemset(A_d0, memsetval, Nbytes) );
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// Device0 push to device1, using P2P:
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HIPCHECK ( hipMemcpy(A_d0, A_d1, Nbytes, hipMemcpyDefault));
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// Copy data back to host:
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HIPCHECK ( hipMemcpy(A_h, A_d1, Nbytes, hipMemcpyDeviceToHost));
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// Check host data:
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for (int i=0; i<N; i++) {
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if (A_h[i] != memsetval) {
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failed("mismatch at index:%d computed:%02x, memsetval:%02x\n", i, (int)A_h[i], (int)memsetval);
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}
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}
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passed();
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}
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