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Support for multithreaded dataset initialization

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This commit is contained in:
tevador 2019-04-13 21:29:51 +02:00
parent 9c383dc2ba
commit 2c87a058ec
1 changed files with 20 additions and 2 deletions
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20
src/main.cpp
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@ -303,7 +303,25 @@ int main(int argc, char** argv) {
if (!legacy) {
RandomX::JitCompilerX86 jit86;
jit86.generateSuperScalarHash(programs);
jit86.getDatasetInitFunc()(cache.memory, dataset.dataset.memory, 0, datasetBlockCount);
RandomX::DatasetInitFunc dsfunc = jit86.getDatasetInitFunc();
if (initThreadCount > 1) {
auto perThread = datasetBlockCount / initThreadCount;
auto remainder = datasetBlockCount % initThreadCount;
uint32_t startBlock = 0;
uint32_t endBlock = 0;
for (int i = 0; i < initThreadCount; ++i) {
auto count = perThread + (i == initThreadCount - 1 ? remainder : 0);
endBlock += count;
threads.push_back(std::thread(dsfunc, cache.memory, dataset.dataset.memory + startBlock * RandomX::CacheLineSize, startBlock, endBlock));
startBlock += count;
}
for (unsigned i = 0; i < threads.size(); ++i) {
threads[i].join();
}
}
else {
dsfunc(cache.memory, dataset.dataset.memory, 0, datasetBlockCount);
}
//dump((const char*)dataset.dataset.memory, RANDOMX_DATASET_SIZE, "dataset.dat");
}
else {