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4 scratchpad segments

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This commit is contained in:
tevador
2019-01-20 00:44:01 +01:00
parent 16db607025
commit bd0dba88a8
10 changed files with 75 additions and 82 deletions
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26
src/main.cpp
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@@ -130,7 +130,7 @@ void generateAsm(int nonce) {
asmX86.printCode(std::cout);
}
void mine(RandomX::VirtualMachine* vm, std::atomic<int>& atomicNonce, AtomicHash& result, int noncesCount, int thread) {
void mine(RandomX::VirtualMachine* vm, std::atomic<int>& atomicNonce, AtomicHash& result, int noncesCount, int thread, uint8_t* scratchpad) {
uint64_t hash[4];
unsigned char blockTemplate[] = {
0x07, 0x07, 0xf7, 0xa4, 0xf0, 0xd6, 0x05, 0xb3, 0x03, 0x26, 0x08, 0x16, 0xba, 0x3f, 0x10, 0x90, 0x2e, 0x1a, 0x14,
@@ -146,11 +146,20 @@ void mine(RandomX::VirtualMachine* vm, std::atomic<int>& atomicNonce, AtomicHash
*noncePtr = nonce;
blake2b(hash, sizeof(hash), blockTemplate, sizeof(blockTemplate), nullptr, 0);
int spIndex = ((uint8_t*)hash)[24] | ((((uint8_t*)hash)[25] & 15) << 8);
vm->initializeScratchpad(spIndex);
vm->initializeScratchpad(scratchpad, spIndex);
vm->initializeProgram(hash);
//dump((char*)((RandomX::CompiledVirtualMachine*)vm)->getProgram(), RandomX::CodeSize, "code-1337-jmp.txt");
vm->setScratchpad(scratchpad + 3 * RandomX::ScratchpadSize / 4);
vm->execute();
vm->getResult(hash);
vm->setScratchpad(scratchpad + 2 * RandomX::ScratchpadSize / 4);
vm->execute();
vm->getResult(nullptr, 0, hash);
vm->initializeProgram(hash);
vm->setScratchpad(scratchpad + 1 * RandomX::ScratchpadSize / 4);
vm->execute();
vm->setScratchpad(scratchpad + 0 * RandomX::ScratchpadSize / 4);
vm->execute();
vm->getResult(scratchpad, RandomX::ScratchpadSize, hash);
result.xorWith(hash);
if (RandomX::trace) {
std::cout << "Nonce: " << nonce << " ";
@@ -274,18 +283,25 @@ int main(int argc, char** argv) {
vm->setDataset(dataset);
vms.push_back(vm);
}
uint8_t* scratchpadMem;
if (largePages) {
scratchpadMem = (uint8_t*)allocLargePagesMemory(RandomX::ScratchpadSize * (threadCount + 1) / 2);
}
else {
scratchpadMem = (uint8_t*)_mm_malloc(threadCount * RandomX::ScratchpadSize, RandomX::CacheLineSize);
}
std::cout << "Running benchmark (" << programCount << " programs) ..." << std::endl;
sw.restart();
if (threadCount > 1) {
for (int i = 0; i < vms.size(); ++i) {
threads.push_back(std::thread(&mine, vms[i], std::ref(atomicNonce), std::ref(result), programCount, i));
threads.push_back(std::thread(&mine, vms[i], std::ref(atomicNonce), std::ref(result), programCount, i, scratchpadMem + RandomX::ScratchpadSize * i));
}
for (int i = 0; i < threads.size(); ++i) {
threads[i].join();
}
}
else {
mine(vms[0], std::ref(atomicNonce), std::ref(result), programCount, 0);
mine(vms[0], std::ref(atomicNonce), std::ref(result), programCount, 0, scratchpadMem);
if (compiled)
std::cout << "Average program size: " << ((RandomX::CompiledVirtualMachine*)vms[0])->getTotalSize() / programCount << std::endl;
}