/* Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /* HIT_START * BUILD: %t %s ../test_common.cpp * RUN: %t * HIT_END */ // includes, system #include #include #include #include // Includes HIP Runtime #include "hip/hip_runtime.h" #include #define EXIT_WAIVED 2 const char *sampleName = "hipSimpleAtomicsTest"; //////////////////////////////////////////////////////////////////////////////// // Auto-Verification Code bool testResult = true; //////////////////////////////////////////////////////////////////////////////// // Declaration, forward void runTest(int argc, char **argv); #define min(a,b) (a) < (b) ? (a) : (b) #define max(a,b) (a) > (b) ? (a) : (b) int computeGold(int *gpuData, const int len) { int val = 0; for (int i = 0; i < len; ++i) { val += 10; } if (val != gpuData[0]) { printf("atomicAdd failed\n"); return false; } val = 0; for (int i = 0; i < len; ++i) { val -= 10; } if (val != gpuData[1]) { printf("atomicSub failed\n"); return false; } bool found = false; for (int i = 0; i < len; ++i) { // third element should be a member of [0, len) if (i == gpuData[2]) { found = true; break; } } if (!found) { printf("atomicExch failed\n"); return false; } val = -(1 << 8); for (int i = 0; i < len; ++i) { // fourth element should be len-1 val = max(val, i); } if (val != gpuData[3]) { printf("atomicMax failed\n"); return false; } val = 1 << 8; for (int i = 0; i < len; ++i) { val = min(val, i); } if (val != gpuData[4]) { printf("atomicMin failed\n"); return false; } int limit = 17; val = 0; for (int i = 0; i < len; ++i) { val = (val >= limit) ? 0 : val+1; } if (val != gpuData[5]) { printf("atomicInc failed\n"); return false; } limit = 137; val = 0; for (int i = 0; i < len; ++i) { val = ((val == 0) || (val > limit)) ? limit : val-1; } if (val != gpuData[6]) { printf("atomicDec failed\n"); return false; } found = false; for (int i = 0; i < len; ++i) { // eighth element should be a member of [0, len) if (i == gpuData[7]) { found = true; break; } } if (!found) { printf("atomicCAS failed\n"); return false; } val = 0xff; for (int i = 0; i < len; ++i) { // 9th element should be 1 val &= (2 * i + 7); } if (val != gpuData[8]) { printf("atomicAnd failed\n"); return false; } val = 0; for (int i = 0; i < len; ++i) { // 10th element should be 0xff val |= (1 << i); } if (val != gpuData[9]) { printf("atomicOr failed\n"); return false; } val = 0xff; for (int i = 0; i < len; ++i) { // 11th element should be 0xff val ^= i; } if (val != gpuData[10]) { printf("atomicXor failed\n"); return false; } return true; } __global__ void testKernel(hipLaunchParm lp,int *g_odata) { // access thread id const unsigned int tid = blockDim.x * blockIdx.x + threadIdx.x; // Test various atomic instructions // Arithmetic atomic instructions // Atomic addition atomicAdd(&g_odata[0], 10); // Atomic subtraction (final should be 0) atomicSub(&g_odata[1], 10); // Atomic exchange atomicExch(&g_odata[2], tid); // Atomic maximum atomicMax(&g_odata[3], tid); // Atomic minimum atomicMin(&g_odata[4], tid); // Atomic increment (modulo 17+1) atomicInc((unsigned int *)&g_odata[5], 17); // Atomic decrement atomicDec((unsigned int *)&g_odata[6], 137); // Atomic compare-and-swap atomicCAS(&g_odata[7], tid-1, tid); // Bitwise atomic instructions // Atomic AND atomicAnd(&g_odata[8], 2*tid+7); // Atomic OR atomicOr(&g_odata[9], 1 << tid); // Atomic XOR atomicXor(&g_odata[10], tid); } int main(int argc, char **argv) { printf("%s starting...\n", sampleName); runTest(argc, argv); hipDeviceReset(); printf("%s completed, returned %s\n", sampleName, testResult ? "OK" : "ERROR!"); exit(testResult ? EXIT_SUCCESS : EXIT_FAILURE); } void runTest(int argc, char **argv) { hipDeviceProp_t deviceProp; deviceProp.major = 0; deviceProp.minor = 0; int dev = 0; hipGetDeviceProperties(&deviceProp, dev); // Statistics about the GPU device printf("> GPU device has %d Multi-Processors, " "SM %d.%d compute capabilities\n\n", deviceProp.multiProcessorCount, deviceProp.major, deviceProp.minor); unsigned int numThreads = 256; unsigned int numBlocks = 64; unsigned int numData = 11; unsigned int memSize = sizeof(int) * numData; //allocate mem for the result on host side int *hOData = (int *) malloc(memSize); //initialize the memory for (unsigned int i = 0; i < numData; i++) hOData[i] = 0; //To make the AND and XOR tests generate something other than 0... hOData[8] = hOData[10] = 0xff; // allocate device memory for result int *dOData; hipMalloc((void **) &dOData, memSize); // copy host memory to device to initialize to zero hipMemcpy(dOData, hOData, memSize,hipMemcpyHostToDevice); // execute the kernel hipLaunchKernel(testKernel, dim3(numBlocks), dim3(numThreads), 0, 0, dOData); //Copy result from device to host hipMemcpy(hOData,dOData, memSize,hipMemcpyDeviceToHost); // Compute reference solution testResult = computeGold(hOData, numThreads * numBlocks); // Cleanup memory free(hOData); hipFree(dOData); passed(); }