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Cuckoo_Tests.cpp
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#include "Cuckoo_Tests.h"
#include "Common.h"
#include "cryptoTools/Common/CuckooIndex.h"
#include "cryptoTools/Common/Matrix.h"
#include "cryptoTools/Crypto/PRNG.h"
#include "SimpleCuckoo.h"
#include <thread>
#include <numeric>
using namespace osuCrypto;
namespace tests_cryptoTools
{
template<int approxFactor = 3>
struct ApproxModHasher
{
bool mode = 0;
std::array<u64, approxFactor> mMods, mMasks;
u64 mMod4, mMod;
ApproxModHasher(u64 mod)
{
if (mode)
{
mMod = mod;
mMod4 = (3ull << log2ceil(mod)) - 1;
}
else
{
u64 pp = 63;
u64 i = 0;
while (pp != ~u64(0) && i < approxFactor)
{
auto mask = 1ull << pp;
if (mask & mod)
{
mMods[i] = mask;
mMasks[i] = mask - 1;
++i;
}
--pp;
}
while (i < approxFactor)
{
mMods[i] = 1;
mMasks[i] = 0;
++i;
}
}
}
u64 value() const
{
if (mode)
{
return mMod;
}
else
{
auto v = 1ull;
for (auto m : mMods)
v += (m - 1);
return v;
}
}
u64 mod(block x) const
{
if (mode)
{
auto xx = x.get<u64>()[0] & (mMod4 - 1);
while (xx >= mMod)
xx -= mMod;
return xx;
}
else
{
u64 v = 0ull;
u64 i = 0;
for (auto m : mMasks)
{
auto xx = *(u64*)(x.get<u8>().data() + i * 2);
auto yy = m & xx;
v += yy;
++i;
}
return v;
}
}
};
void CuckooIndex_many_Test_Impl()
{
PRNG prng(ZeroBlock);
//u64 p = 4532;
//ApproxModHasher<3> m(p);
//std::vector<u64> counts(p);
//for (u64 i = 0; i < 1000000; ++i)
//{
// auto x = prng.get<block>();
// auto r = m.mod(x);
// counts[r]++;
//}
//auto p2 = m.value()-1;
//std::cout << "mm " << p2 << " " << p << std::endl;
//auto mmin = std::min_element(counts.begin(), counts.begin() + p2);
//auto mmax = std::max_element(counts.begin(), counts.begin() + p2);
//auto avg = std::accumulate(counts.begin(), counts.begin() + p2, 0) / double(p2);
//std::cout << "min " << *mmin << " max " << *mmax << " avg " <<avg<< std::endl;
////for (u64 i = 0; i < p2; ++i)
////{
//// std::cout << i << " ~ " << counts[i] << std::endl;
////}
//return;
u64 base = 20;
u64 stepSize = 41;
u64 setSize = stepSize * base;
//u64 h = 2;
std::vector<block> hashes(setSize);
for (u64 i = 0; i < hashes.size(); ++i)
{
hashes[i] = prng.get<block>();
}
CuckooIndex<ThreadSafe> hashMap0;
CuckooIndex<ThreadSafe> hashMap1;
hashMap0.init(setSize, 40, 0, 3);
hashMap1.init(setSize, 40, 0, 3);
//auto mask = hashMap0.mParams.binMask();
//for (u64 i = 0; i < hashes.size(); ++i)
//{
// auto e = CuckooIndex<>::expand(hashes[i], 3, hashMap0.mNumBins, mask);
// for (u64 j = 0; j < 3; ++j)
// {
// auto h0 = CuckooIndex<>::getHash(hashes[i], j, hashMap0.mNumBins);
// auto h1 = CuckooIndex<>::getHash2(e, j, hashMap0.mNumBins);
// if (h0 != h1)
// throw RTE_LOC;
// }
//}
for (u64 i = 0; i < base; ++i)
{
std::vector<u64> tt(stepSize);
std::vector<block> mm(stepSize);
for (u64 j = 0; j < stepSize; ++j)
{
tt[j] = i * stepSize + j;
mm[j] = hashes[i * stepSize + j];
hashMap0.insert(tt[j], mm[j]);
}
//std::cout << hashMap0 << std::endl;
hashMap1.insert(mm, i * stepSize);
for (u64 j = 0; j < (i + 1) * stepSize; ++j)
{
auto f0 = hashMap0.find(hashes[j]);
if (f0.mInputIdx != j)
{
std::cout << i << " " << j << std::endl;
throw UnitTestFail();
}
if (hashMap1.find(hashes[j]).mInputIdx != j)
{
std::cout << i << std::endl;
throw UnitTestFail();
}
}
}
for (u64 i = 0; i < setSize; ++i)
{
if (hashMap0.find(hashes[i]).mInputIdx != i)
{
throw UnitTestFail();
}
if (hashMap1.find(hashes[i]).mInputIdx != i)
{
throw UnitTestFail();
}
}
}
void CuckooIndex_paramSweep_Test_Impl()
{
u64 maxPow = 18;
for (u64 p = 0; p <= maxPow; ++p)
{
u64 setSize = u64(1) << p;
std::vector<block> hashes(setSize);
std::vector<u64> idxs(setSize);
PRNG prng(OneBlock);
for (u64 i = 0; i < hashes.size(); ++i)
{
hashes[i] = prng.get<block>();
idxs[i] = i;
}
CuckooIndex<NotThreadSafe> hashMap0;
hashMap0.init(setSize, 40, 0, 3);
hashMap0.insert(hashes);
//hashMap0.find(hashes, idxs);
for (u64 i = 0; i < setSize; ++i)
{
idxs[i] = hashMap0.find(hashes[i]).mInputIdx;
if (idxs[i] != i)
{
throw UnitTestFail();
}
}
}
}
void CuckooIndex_parallel_Test_Impl()
{
u64 numThreads = 2;
//u64 step = 1024;
u64 setSize = u64(1) << 12;
//u64 h = 2;
CuckooIndex<ThreadSafe> hashMap;
hashMap.init(setSize, 40, 0, 3);
std::vector<block> items(setSize);
PRNG prng(ZeroBlock);
prng.get(items.data(), setSize);
std::vector<std::thread> thrds(numThreads);
for (u64 t = 0; t < numThreads; ++t)
{
thrds[t] = std::thread([&, t]()
{
u64 start = t * setSize / numThreads;
u64 end = (t + 1) * setSize / numThreads;
span<block> region(items.data() + start, items.data() + end);
hashMap.insert(region, ZeroBlock, start);
});
}
for (u64 t = 0; t < numThreads; ++t)
thrds[t].join();
hashMap.validate(items, ZeroBlock);
//for (u64 i = 0; i < setSize; ++i)
//{
// if (hashMap.find() != i)
// throw UnitTestFail();
//}
}
//void CuckooIndexVsCuckooHasher()
//{
// u64 /*setSize = 8, */count = 1000;
// PRNG prng(_mm_set1_epi64x(0));
// double e = 3;
// u64 h = 2;
// for (auto setSize : { 1 << 8})
// {
// std::vector<block> hashs(setSize);
// std::vector<u64> idxs(setSize);
// for (u64 t = 0; t < count; ++t)
// {
// //if (i % step == 0)std::cout << "\r" << (i / step) << "%" << flush;
// prng.mAes.ecbEncCounterMode(prng.mBlockIdx, setSize, (block*)hashs.data());
// prng.mBlockIdx += setSize;
// //if (t != 14) continue;
// CuckooIndex<> c;
// SimpleCuckoo cc;
// cc.mParams.mBinScaler = c.mParams.mBinScaler = e;
// cc.mParams.mNumHashes = c.mParams.mNumHashes = h;
// cc.mParams.mStashSize = c.mParams.mStashSize = 400;
// cc.mParams.mN = c.mParams.mN = setSize;
// u64 stashSize;
// for (u64 i = 0; i < setSize; ++i) idxs[i] = i;
// cc.init();
// c.init(c.mParams);
// auto ss = c.mBins.size();
// cc.insert(idxs, hashs);
// stashSize = cc.stashUtilization();
// for (u64 i = 0; i < setSize; ++i) idxs[i] = i;
// c.insert(idxs, hashs);
// stashSize = c.stashUtilization();
// for (u64 i = 0; i < c.mBins.size(); ++i)
// {
// if (c.mBins[i].mS.mVal != cc.mBins[i].mVal)
// {
// std::cout << i << " @ " << setSize <<" " << t<< std::endl;
// std::cout << "CuckooIndex "; c.print(); std::cout << std::endl;
// std::cout << "CuckooSimple "; cc.print(); std::cout << std::endl;
// throw std::runtime_error(LOCATION);
// }
// }
// }
// }
//}
}