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Dataset size increased to 2080 MiB

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Implemented dataset base offset
Tweaked SuperscalarHash constants to prevent register collisions
This commit is contained in:
tevador
2019-04-26 16:05:30 +02:00
parent f66da3911e
commit 270a4f97fe
19 changed files with 56 additions and 44 deletions
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26
src/tests/superscalar-init.cpp
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@@ -24,27 +24,25 @@ along with RandomX. If not, see<http://www.gnu.org/licenses/>.
#include "../superscalar.hpp"
#include "../common.hpp"
const uint8_t seed[32] = { 191, 182, 222, 175, 249, 89, 134, 104, 241, 68, 191, 62, 162, 166, 61, 64, 123, 191, 227, 193, 118, 60, 188, 53, 223, 133, 175, 24, 123, 230, 55, 74 };
int main() {
std::cout << "THIS PROGRAM REQUIRES MORE THAN 10 GB OF RAM TO COMPLETE" << std::endl;
std::cout << "THIS PROGRAM REQUIRES MORE THAN 16 GB OF RAM TO COMPLETE" << std::endl;
std::vector<uint64_t> dummy;
constexpr uint64_t superscalarMul0 = 6364136223846793005ULL;
constexpr uint64_t superscalarAdd1 = 9298410992540426748ULL; //9298410992540426048ULL
constexpr uint64_t superscalarAdd1 = 0x810A978A59F5A1FC; //9298410992540426748ULL; //9298410992540426048ULL
constexpr uint64_t superscalarAdd2 = 12065312585734608966ULL;
constexpr uint64_t superscalarAdd3 = 9306329213124610396ULL;
constexpr uint64_t superscalarAdd3 = 0x8126B91CBF22495C; //9306329213124610396ULL;
constexpr uint64_t superscalarAdd4 = 5281919268842080866ULL;
constexpr uint64_t superscalarAdd5 = 10536153434571861004ULL;
constexpr uint64_t superscalarAdd6 = 3398623926847679864ULL;
constexpr uint64_t superscalarAdd7 = 9549104520008361294ULL;
constexpr uint32_t totalBlocks = RANDOMX_DATASET_SIZE / randomx::CacheLineSize;
constexpr uint32_t totalItems = randomx::DatasetSize / randomx::CacheLineSize;
std::unordered_set<uint64_t> registerValues;
registerValues.reserve(totalBlocks);
registerValues.rehash(totalBlocks);
registerValues.reserve(totalItems);
registerValues.rehash(totalItems);
int collisionCount[9] = { 0 };
for (uint32_t blockNumber = 0; blockNumber < totalBlocks; ++blockNumber) {
for (uint32_t itemNumber = 0; itemNumber < totalItems; ++itemNumber) {
uint64_t rl[8];
rl[0] = (blockNumber + 1) * superscalarMul0;
rl[0] = (itemNumber + 1) * superscalarMul0;
rl[1] = rl[0] ^ superscalarAdd1;
rl[2] = rl[0] ^ superscalarAdd2;
rl[3] = rl[0] ^ superscalarAdd3;
@@ -57,19 +55,19 @@ int main() {
uint64_t reducedValue = rl[i] & 0x3FFFFFFFFFFFF8; //bits 3-53 only
if (registerValues.find(reducedValue) != registerValues.end()) {
blockCollisions++;
std::cout << "Block " << blockNumber << ": collision of register r" << i << std::endl;
std::cout << "Item " << itemNumber << ": collision of register r" << i << std::endl;
}
else {
registerValues.insert(reducedValue);
}
}
collisionCount[blockCollisions]++;
if ((blockNumber % (320 * 1024)) == 0)
std::cout << "Block " << blockNumber << " processed" << std::endl;
if ((itemNumber % (320 * 1024)) == 0)
std::cout << "Item " << itemNumber << " processed" << std::endl;
}
for (int i = 0; i < 9; ++i) {
std::cout << i << " register(s) collide in " << collisionCount[i] << " blocks" << std::endl;
std::cout << i << " register(s) collide in " << collisionCount[i] << " items" << std::endl;
}
return 0;