mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-09 23:45:36 +00:00
104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./tests/smearing/Test_fatLinks.cc
|
|
|
|
Copyright (C) 2023
|
|
|
|
Author: D. A. Clarke <clarke.davida@gmail.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
See the full license in the file "LICENSE" in the top level distribution
|
|
directory
|
|
*************************************************************************************/
|
|
/*
|
|
@file Test_fatLinks.cc
|
|
@brief test of the HISQ smearing
|
|
*/
|
|
|
|
|
|
#include <Grid/Grid.h>
|
|
#include <Grid/lattice/PaddedCell.h>
|
|
#include <Grid/stencil/GeneralLocalStencil.h>
|
|
#include <Grid/qcd/smearing/HISQSmearing.h>
|
|
using namespace Grid;
|
|
|
|
|
|
/*! @brief make the logger work like python print */
|
|
template<typename... Args>
|
|
inline std::string sjoin(Args&&... args) noexcept {
|
|
std::ostringstream msg;
|
|
(msg << ... << args);
|
|
return msg.str();
|
|
}
|
|
template <typename... Args>
|
|
inline void Grid_log(Args&&... args) {
|
|
std::string msg = sjoin(std::forward<Args>(args)...);
|
|
std::cout << GridLogMessage << msg << std::endl;
|
|
}
|
|
|
|
//
|
|
// one method: input --> fat
|
|
// another : input --> long (naik)
|
|
// another : input --> unitarize
|
|
//
|
|
|
|
int main (int argc, char** argv) {
|
|
|
|
// Params for the test.
|
|
int Ns = 8;
|
|
int Nt = 4;
|
|
Coordinate latt_size(Nd,0); latt_size[0]=Ns; latt_size[1]=Ns; latt_size[2]=Ns; latt_size[3]=Nt;
|
|
std::string conf_in = "nersc.l8t4b3360";
|
|
std::string conf_out = "nersc.l8t4b3360.3link";
|
|
|
|
// Initialize the Grid
|
|
Grid_init(&argc,&argv);
|
|
Coordinate simd_layout = GridDefaultSimd(Nd,vComplexD::Nsimd());
|
|
Coordinate mpi_layout = GridDefaultMpi();
|
|
Grid_log(" mpi = ",mpi_layout);
|
|
Grid_log("simd = ",simd_layout);
|
|
Grid_log("latt = ",latt_size);
|
|
GridCartesian GRID(latt_size,simd_layout,mpi_layout);
|
|
|
|
// Instantiate the LatticeGaugeField objects holding thin (Umu) and fat (U_smr) links
|
|
LatticeGaugeField Umu(&GRID);
|
|
LatticeGaugeField U_smr(&GRID);
|
|
|
|
// Read the configuration into Umu
|
|
FieldMetaData header;
|
|
NerscIO::readConfiguration(Umu, header, conf_in);
|
|
|
|
// Smear Umu and store result in U_smr
|
|
Smear_HISQ_fat<LatticeGaugeField> hisq_fat(&GRID,1/8.,0.,1/16.,1/64.,1/384.,0.);
|
|
hisq_fat.smear(U_smr,Umu);
|
|
|
|
NerscIO::writeConfiguration(U_smr,conf_out,"HISQ");
|
|
|
|
// Test a C-style instantiation
|
|
double path_coeff[6] = {1, 2, 3, 4, 5, 6};
|
|
Smear_HISQ_fat<LatticeGaugeField> hisq_fat_Cstyle(&GRID,path_coeff);
|
|
|
|
// Make sure result doesn't change w.r.t. a trusted lattice
|
|
NerscIO::readConfiguration(Umu, header, "nersc.l8t4b3360.3link.control");
|
|
LatticeGaugeField diff(&GRID);
|
|
diff = Umu-U_smr;
|
|
auto absDiff = norm2(diff)/norm2(Umu);
|
|
Grid_log(" |Umu-U|/|Umu| =",absDiff);
|
|
|
|
Grid_finalize();
|
|
} |