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TiborGY 2019-05-30 19:22:51 +02:00 committed by GitHub
parent 7d687f202e
commit b7529505c0
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1 changed files with 6 additions and 6 deletions
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12
cpp_thread_test/dgemm_thread_safety.cpp
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@ -55,8 +55,8 @@ int main(int argc, char* argv[]){
std::cout<<"done\n";
//pauser();
std::cout<<"Filling matrices with random numbers..."<<std::flush;
FillMatrices(matBlock, PRNG, rngdist, randomMatSize, numConcurrentThreads);
//PrintMatrices(matBlock, randomMatSize, numConcurrentThreads);
FillMatrices(matBlock, PRNG, rngdist, randomMatSize, numConcurrentThreads, 3);
//PrintMatrices(matBlock, randomMatSize, numConcurrentThreads, 3);
std::cout<<"done\n";
std::cout<<"Testing CBLAS DGEMM thread safety\n";
omp_set_num_threads(numConcurrentThreads);
@ -74,12 +74,12 @@ int main(int argc, char* argv[]){
futureBlock[i].get();
}
std::cout<<"done\n";
//PrintMatrices(matBlock, randomMatSize, numConcurrentThreads);
//PrintMatrices(matBlock, randomMatSize, numConcurrentThreads, 3);
std::cout<<"Comparing results from different threads..."<<std::flush;
for(uint32_t i=3; i<(numConcurrentThreads*3); i+=3){
for(uint32_t i=3; i<(numConcurrentThreads*3); i+=3){ //i is the index of matrix A, for a given thread
for(uint32_t j=0; j<(randomMatSize*randomMatSize); j++){
if (std::abs(matBlock[i+2][j] - matBlock[2][j]) > 1.0E-13){
std::cout<<"ERROR: one of the threads returned a different result!"<<i+2<<std::endl;
if (std::abs(matBlock[i+2][j] - matBlock[2][j]) > 1.0E-13){ //i+2 is the index of matrix C, for a given thread
std::cout<<"ERROR: one of the threads returned a different result! Index : "<<i+2<<std::endl;
std::cout<<"CBLAS DGEMM thread safety test FAILED!"<<std::endl;
return -1;
}