QUDA's MG has been prepared for "thin updates" (updates only of the operator to be solved), see interface_quda.cpp -> updateMultigrdQuda -> if(mg_param->thin_update_only).
However, the functionality is limited to updating param->mass right now.
To make MG in the HMC more efficient, this should be extended to include support for updating mu (and perhaps kappa).
kostrzewa
commented
3 years ago
QUDA's MG has been prepared for "thin updates" (updates only of the operator to be solved), see interface_quda.cpp -> updateMultigrdQuda ->
if(mg_param->thin_update_only).However, the functionality is limited to updating
param->massright now.To make MG in the HMC more efficient, this should be extended to include support for updating mu (and perhaps kappa).