Preconditioner - ASM
Usage:
-pc_type asm
Options:
-pc_asm_blocks
Number of subdomains. Default = -1
-pc_asm_overlap
Number of grid points overlap. Default = 1
-pc_asm_in_place
Perform matrix factorization inplace
-pc_asm_type
(choose one of) Default = RESTRICT
NONE
RESTRICT
INTERPOLATE
BASIC
Info: