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Adding threshold in Plaquette testing fft5d bugfix

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This commit is contained in:
Chulwoo Jung
2026-05-08 18:53:30 -04:00
parent d5cab295b2
commit bb99123e6d
3 changed files with 276 additions and 14 deletions
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tests/core/Test_plaquette_stats.cc
+30 -2
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@@ -34,14 +34,17 @@ See the full license in the file "LICENSE" in the top level distribution directo
*
* Usage:
* ./Test_plaquette_stats [Grid options] [--file <nersc_config>] [--hot]
* [--threshold <val>]
*
* --file <path> Read gauge field from NERSC-format file
* --hot Use random (hot) SU(3) start (default: cold/unit start)
* --file <path> Read gauge field from NERSC-format file
* --hot Use random (hot) SU(3) start (default: cold/unit start)
* --threshold <val> Print coordinates of every plaquette with Re Tr/Nc < val
*
* Grid size defaults to 8^3 x 16; override with --grid (e.g. --grid 4.4.4.8).
*/
#include <Grid/Grid.h>
#include <limits>
using namespace std;
using namespace Grid;
@@ -91,6 +94,16 @@ int main(int argc, char** argv)
if (std::string(argv[i]) == "--hot") { doHot = true; break; }
}
double threshold = std::numeric_limits<double>::quiet_NaN();
bool doThresh = false;
for (int i = 1; i < argc - 1; i++) {
if (std::string(argv[i]) == "--threshold") {
threshold = std::stod(argv[i+1]);
doThresh = true;
break;
}
}
if (!config_file.empty()) {
std::cout << GridLogMessage << "Reading gauge field from " << config_file << std::endl;
FieldMetaData header;
@@ -175,6 +188,21 @@ int main(int argc, char** argv)
<< std::setw(20) << std::setprecision(10) << local_min
<< std::setw(20) << std::setprecision(10) << avg
<< std::endl;
if (doThresh) {
for (int s = 0; s < (int)sv.size(); s++) {
RealD val = TensorRemove(sv[s]).real() / Nc;
if (val < threshold) {
Coordinate lc(Nd), gc(Nd);
Lexicographic::CoorFromIndex(lc, s, grid._ldimensions);
for (int d = 0; d < Nd; d++)
gc[d] = grid._processor_coor[d] * grid._ldimensions[d] + lc[d];
std::cout << "BELOW_THRESHOLD plane=" << planeName(mu, nu)
<< " site=(" << gc[0] << "," << gc[1] << "," << gc[2] << "," << gc[3] << ")"
<< " P=" << std::setprecision(10) << val << std::endl;
}
}
}
}
}