portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2026-08-28 21:39:35 +01:00
Code Releases Activity

Coefficent of GCR printing for poly recording

Browse Source
This commit is contained in:
Peter Boyle
2026-08-24 19:40:27 -04:00
parent effa31e761
commit 8c6bcddbab
2 changed files with 23 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/Example_pvdagm_v2_3level_DenseCoarseMatrix.cc
+7
View File
@@ -108,6 +108,10 @@ int OuterNstep = 8;
// operators default to EXACT. FineSloppyComms therefore now means
// "sloppy inside the preconditioner"; =0 makes everything exact.
int FineSloppyComms = 1;
// SmootherCoeffLog=1 : print the GCR step lengths a_k and orthogonalisation
// coefficients b_kj of BOTH smoothers every call -- the harvest for a fixed
// polynomial smoother (stable coefficients => stationary p(A), no reductions).
int SmootherCoeffLog = 0;
std::function<void(int)> SetFineSloppy = [](int){};
void ParseEnvironment(void)
@@ -125,6 +129,7 @@ void ParseEnvironment(void)
if(getenv("OuterTol")) OuterTol = atof(getenv("OuterTol"));
if(getenv("OuterMmax")) OuterMmax = atoi(getenv("OuterMmax"));
if(getenv("FineSloppyComms")) FineSloppyComms = atoi(getenv("FineSloppyComms"));
if(getenv("SmootherCoeffLog")) SmootherCoeffLog = atoi(getenv("SmootherCoeffLog"));
if(getenv("OuterNstep")) OuterNstep = atoi(getenv("OuterNstep"));
if(getenv("LATT")){
Coordinate l;
@@ -850,6 +855,8 @@ int main (int argc, char ** argv)
FineSmoother_t SmootherGCR(0.0,1,ShiftedPVdagM,simple_fine,FineSmootherOrder,FineSmootherOrder);
SmootherGCR.Level(1); SmootherGCR.Name("Fsmoother"); SmootherGCR.SetZeroGuess(1);
SmootherGCR.LogCoefficients(SmootherCoeffLog);
CoarseSmootherGCR.LogCoefficients(SmootherCoeffLog);
MrhsTwoLevelMG<LatticeFermionD,CoarseVector,FineSmoother_t>
ThreeLevelPrecon(PVdagM, SmootherGCR, MrhsProjector, L2PGCR, Coarse5d, CMrhs);