portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-11-04 14:04:32 +00:00
Code Releases Activity

dt^2 term comments

Browse Source
This commit is contained in:
Peter Boyle
2019-02-24 15:23:20 +00:00
parent ded2d5c3ab
commit 6160795a43
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
tests/forces/Test_wilson_force.cc
View File

@@ -173,6 +173,13 @@ int main (int argc, char ** argv)
// Update PF action density
dS = dS+trace(mommu*forcemu)*dt;
// Smom = - P^2 ;
// dSmom = trace ( (mom+f/2dt)(mom+f/2dt) ) - trace mom*mom
// = trace(mom*f) dt + 0.25*dt*dt * trace(f*f).
//
// can we improve on this in HMC???
//
//
dSmom = dSmom - trace(mommu*forcemu) * dt;
dSmom2 = dSmom2 - trace(forcemu*forcemu) *(0.25* dt*dt);