Local Solves

  All ParPre methods (with the exception of the multilevel methods) feature a local, per processor, solve component for the subdomains. This method is accessible by the following routine:

int PCParallelGetLocalPC(PC the_pc,PC *local_pc)

Any existing call defined for the PC type can then be applied to the local_pc. No call to PCSetup is needed for the local method.

Properties of the local method can be set through the options database by taking any existing option and prefixing it with sub_.