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Implemented acclerator-optimized versions of localCopyRegion and insertSliceLocal to speed up padding

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Fixed const correctness on PaddedCell methods
Fixed compile issues on Crusher
Added timing breakdowns for PaddedCell::Expand and the padded implementations of the staples, visible under --log Performance
Optimized kernel for StaplePadded
Test_iwasaki_action_newstaple now repeats the calculation 10 times and reports average timings
This commit is contained in:
Christopher Kelly
2023-06-27 14:58:10 -04:00
parent bb71e9a96a
commit f44dce390f
4 changed files with 245 additions and 62 deletions
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26
tests/debug/Test_iwasaki_action_newstaple.cc
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@@ -165,18 +165,24 @@ int main (int argc, char ** argv)
IwasakiGaugeActionOrig<Gimpl> action_orig(beta);
IwasakiGaugeAction<Gimpl> action_new(beta);
double t0 = usecond();
action_orig.deriv(U, derivOrig);
double t1 = usecond();
action_new.deriv(U, derivNew);
double t2 = usecond();
double torig=0, tnew=0;
int ntest = 10;
for(int i=0;i<ntest;i++){
double t0 = usecond();
action_orig.deriv(U, derivOrig);
double t1 = usecond();
action_new.deriv(U, derivNew);
double t2 = usecond();
GaugeLorentz diff = derivOrig - derivNew;
double n = norm2(diff);
std::cout << GridLogMessage << "Difference " << n << " (expect 0)" << std::endl;
assert(n<1e-10);
GaugeLorentz diff = derivOrig - derivNew;
double n = norm2(diff);
std::cout << GridLogMessage << "Difference " << n << " (expect 0)" << std::endl;
assert(n<1e-10);
std::cout << GridLogMessage << "Timings orig: " << (t1-t0)/1000 << "ms, new: " << (t2-t1)/1000 << "ms" << std::endl;
std::cout << GridLogMessage << "Timings orig: " << (t1-t0)/1000 << "ms, new: " << (t2-t1)/1000 << "ms" << std::endl;
torig += (t1-t0)/1000; tnew += (t2-t1)/1000;
}
std::cout << GridLogMessage << "Avg timings " << ntest << " iterations: orig:" << torig/ntest << "ms, new:" << tnew/ntest << "ms" << std::endl;
Grid_finalize();
}