Maneesh Gupta
65 строки
2.2 KiB
C++
65 строки
2.2 KiB
C++
/*
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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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#include "hip/hip_runtime.h"
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#include <iostream>
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#include <time.h>
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#define NUM_SIZE 8
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#define NUM_ITER 1 << 30
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static size_t size[NUM_SIZE];
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__global__ void Add(hipLaunchParm lp, int* Ad) {
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int tx = threadIdx.x;
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Ad[tx] = Ad[tx] + tx;
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}
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void setup() {
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for (int i = 0; i < NUM_SIZE; i++) {
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size[i] = 1 << (i + 6); // start at 8 bytes
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}
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}
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void valSet(int* A, int val, size_t size) {
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size_t len = size / sizeof(int);
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for (int i = 0; i < len; i++) {
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A[i] = val;
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}
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}
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int main() {
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setup();
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int *A, *Ad;
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for (int i = 0; i < NUM_SIZE; i++) {
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A = (int*)malloc(size[i]);
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valSet(A, 1, size[i]);
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hipMalloc(&Ad, size[i]);
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std::cout << "Malloc success at size: " << size[i] << std::endl;
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for (int j = 0; j < NUM_ITER; j++) {
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std::cout << "Iter: " << j << std::endl;
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hipMemcpy(Ad, A, size[i], hipMemcpyHostToDevice);
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hipLaunchKernel(Add, dim3(1), dim3(size[i] / sizeof(int)), 0, 0, Ad);
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hipMemcpy(A, Ad, size[i], hipMemcpyDeviceToHost);
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}
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hipDeviceSynchronize();
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}
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}
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