Modified gauge fixing code to use CshiftLink internally such that the steepest descent algorithm is universal
Modified gauge transformation code to use CshiftLink for a universal definition
Improved comprehensibility of Test_fft_gfix and generalized to use either periodic or charge conjugation BCs based on cmdline option
Added cmdline options to Test_fft_gfix to tune alpha and optionally disable the Fourier acceleration tests
Added tests/solver/Test_eofa_inv.cc to test the above
In MDWF+ID GPBC binary, tests of RHMC approx for the action / MD approxs can be performed separately using a cmdline toggle
Allowed EOFA to accept different solvers for the L and R operations in the heatbath step
Fixed EOFA Meofa operating on member Phi rather than input field
Added derived EOFA pseudofermion variant that allows for mixed prec CG to be used in the heatbath
Added forces/Test_mobius_gparity_eofa_mixed testing the above reproduces the regular EOFA
To Test_gamma, added checks for the various properties of the charge conjugation matrix C=-gamma2*gamma4 in Grid basis
Broke up ExactOneFlavourRatio refresh into a virtual routine that generates eta and one that uses it as with the ratio and RHMC actions
Added accessors to the pseudofermion field to TwoFlavourEvenOddRatio and ExactOneFlavourRatio
Adapted GeneralEvenOddRationalRatio and Test_rhmc_EOWilsonRatio_doubleVsMixedPrec to recent changes that require passing in serial RNG
For GeneralEvenOddRationalRatio and TwoFlavourEvenOddRatio, broke refresh into two stages, the first of which generates the random field and the second that computes the pseudofermion field.
This allows derived classes to override the generation of the random field, for example in testing.
Test_dwf_gpforce now uses Gparity in x-direction and APBC in time as opposed to G-parity in time
Added Test_action_dwf_gparity2fvs1f that compares the DWF fermion action with the 2f and the 1f (doubled-lattice) implementations of Gparity
Added a conjugate momentum "filter" that applies a phase to each site. With sites set to 1.0 or 0.0 this acts as a mask and enables, for example, the freezing of inactive gauge links in DDHMC
Added tests/forces/Test_momentum_filter demonstrating the use of the filter to freeze boundary links
As the integrator logger is active by default the cmdline option to activate had no effect. Changed option to *de*activate on request ("NoIntegrator")
Cleaned up generating rational approxs in the general RHMC code
As the tolerance of the rational approx is not related to the CG tolerance, regenerating approxs for MD and MC if they differ only by the CG tolerance is not necessary; this has been fixed
In DWF+I Gparity evolution code, added cmdline options to check the rational approximations and compute the lowest/highest eigenvalues of M^dagM for RHMC tuning
In the above, changed the integrator layout to a much simpler one that completes much faster; may need additional tuning
Added a mixed-precision variant of GeneralEvenOddRatioRationalPseudoFermionAction and a verification test against double prec class
Fixed non-const reference used in passing RHMC approx to multishift classes
Adapted mixed-prec multi-shift test to new way to pass gauge BC directions and added cmdline option to perform the G-parity plaquette comparison with the corrected plaquette when loading config
A reliable update step is performed at a tunable frequency to correct the residual. A final mixed-prec single-shift solve is performed on each pole to perform cleanup if necessary.
A test is provided to demonstrate the algorithm.
precisionChange lattice function now uses copyLane to remove need for temporary scalar objects, reducing register footprint and significantly improving performance
Added a test evolution for the above, Test_rhmc_EOWilsonRatioPowQuarter, demonstrating conservation of Hamiltonian
Fixed HMC ignoring the MetropolisTest parameter of HMCparameters
Christopher Kelly