portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-06-13 04:37:05 +01:00
Code Releases Activity

Addtional routines for Lanczos (SYM2, Chebyshef)..

Browse Source
This commit is contained in:
Jung
2016-01-25 01:26:25 -05:00
parent 5c57d4f403
commit b8fb05a422
5 changed files with 66 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
tests/Test_dwf_lanczos.cc
View File

@ -31,6 +31,8 @@ using namespace std;
using namespace Grid;
using namespace Grid::QCD;
RealD AllZero(RealD x){ return 0.;}
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
@ -64,14 +66,18 @@ int main (int argc, char ** argv)
const int Nstop = 30;
const int Nk = 40;
const int Np = 100;
const int Np = 10;
const int Nm = Nk+Np;
const int MaxIt= 10000;
RealD resid = 1.0e-8;
std::vector<double> Coeffs { 0.,1.};
Polynomial<LatticeFermion> PolyX(Coeffs);
ImplicitlyRestartedLanczos<LatticeFermion> IRL(*FGrid,HermOp,PolyX,Nstop,Nk,Nm,resid,MaxIt);
Chebyshev<LatticeFermion> Cheb(1,80.,11);
// ChebyshevLanczos<LatticeFermion> Cheb(9.,1.,0.,20);
Cheb.csv(std::cout);
// exit(-24);
ImplicitlyRestartedLanczos<LatticeFermion> IRL(*FGrid,HermOp,Cheb,Nstop,Nk,Nm,resid,MaxIt);
std::vector<RealD> eval(Nm);