int PCShellSetApplyRichardson(PC pc, int (*apply)(void*,Vec,Vec,Vec,int),void *ptr)Collective on PC
| pc | - the preconditioner context |
| apply | - the application-provided preconditioning routine |
| ptr | - pointer to data needed by this routine |
int apply (void *ptr,Vec x,Vec b,Vec r,int maxits)
| ptr | - the application context |
| x | - current iterate |
| b | - right-hand-side |
| r | - residual |
| maxits | - maximum number of iterations |
Location: src/pc/impls/shell/shellpc.c
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