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Tested rms dH is ~ dt^4 numerically, so believe the ForceGradient is correct now.

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Paranoia makes me want to diddle with the FG step to ensure dt^2 reappears.
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Peter Boyle 2015-08-31 16:33:20 +01:00
parent 357c6ab46d
commit 638d6675ee
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lib/qcd/hmc/integrators/Integrator_algorithm.h
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@ -171,6 +171,7 @@ namespace Grid{
const RealD theta = 0.0; const RealD theta = 0.0;
public: public:
// Looks like dH scales as dt^4. tested wilson/wilson 2 level.
ForceGradient(GridBase* grid, ForceGradient(GridBase* grid,
IntegratorParameters Par, IntegratorParameters Par,
ActionSet<GaugeField> & Aset): Integrator<GaugeField>(grid,Par,Aset) {}; ActionSet<GaugeField> & Aset): Integrator<GaugeField>(grid,Par,Aset) {};