(Optional) Set coarsest solver type
(Optional) Set coarsest solver type.Current solver types set by csolver_type are:\begin{tabular}{l@{ -- }l} 1 SysPFMG-PCG (default) 2 SysPFMG alphabetic index hierarchy of classes generated by doc++
Current solver types set by csolver_type are:
\begin{tabular}{l@{ -- }l} 1
alphabetic index hierarchy of classes
generated by doc++