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Use deterministic own brand reduction

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This commit is contained in:
Peter Boyle 2024-10-10 22:01:24 +00:00
parent 2b5fdcbbc5
commit beb0e474ee
1 changed files with 25 additions and 3 deletions
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28
Grid/lattice/Lattice_reduction.h
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@ -290,8 +290,10 @@ template<class vobj>
inline ComplexD innerProduct(const Lattice<vobj> &left,const Lattice<vobj> &right) {
GridBase *grid = left.Grid();
bool ok;
#ifdef GRID_SYCL
uint64_t csum=0;
uint64_t csum2=0;
if ( FlightRecorder::LoggingMode != FlightRecorder::LoggingModeNone)
{
// Hack
@ -300,13 +302,33 @@ inline ComplexD innerProduct(const Lattice<vobj> &left,const Lattice<vobj> &righ
Integer words = left.Grid()->oSites()*sizeof(vobj)/sizeof(uint64_t);
uint64_t *base= (uint64_t *)&l_v[0];
csum=svm_xor(base,words);
ok = FlightRecorder::CsumLog(csum);
if ( !ok ) {
csum2=svm_xor(base,words);
std::cerr<< " Bad CSUM " << std::hex<< csum << " recomputed as "<<csum2<<std::dec<<std::endl;
} else {
// csum2=svm_xor(base,words);
// std::cerr<< " ok CSUM " << std::hex<< csum << " recomputed as "<<csum2<<std::dec<<std::endl;
}
assert(ok);
}
FlightRecorder::CsumLog(csum);
#endif
FlightRecorder::StepLog("rank inner product");
ComplexD nrm = rankInnerProduct(left,right);
// ComplexD nrmck=nrm;
RealD local = real(nrm);
FlightRecorder::NormLog(real(nrm));
grid->GlobalSum(nrm);
ok = FlightRecorder::NormLog(real(nrm));
if ( !ok ) {
ComplexD nrm2 = rankInnerProduct(left,right);
RealD local2 = real(nrm2);
std::cerr<< " Bad NORM " << local << " recomputed as "<<local2<<std::endl;
assert(ok);
}
FlightRecorder::StepLog("Start global sum");
grid->GlobalSumP2P(nrm);
// grid->GlobalSum(nrm);
FlightRecorder::StepLog("Finished global sum");
// std::cout << " norm "<< nrm << " p2p norm "<<nrmck<<std::endl;
FlightRecorder::ReductionLog(local,real(nrm));
return nrm;
}