slepc-3.16.1 2021-11-17
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Sets an ADDITIONAL function to be called at every iteration to monitor convergence.


#include "slepclme.h" 
PetscErrorCode LMEMonitorSet(LME lme,PetscErrorCode (*monitor)(LME,PetscInt,PetscReal,void*),void *mctx,PetscErrorCode (*monitordestroy)(void**))
Logically Collective on lme

Input Parameters

lme  - linear matrix equation solver context obtained from LMECreate()
monitor  - pointer to function (if this is NULL, it turns off monitoring)
mctx  - [optional] context for private data for the monitor routine (use NULL if no context is desired)
monitordestroy  - [optional] routine that frees monitor context (may be NULL)

Calling Sequence of monitor

  monitor(LME lme,int its,PetscReal errest,void *mctx)

lme  - linear matrix equation solver context obtained from LMECreate()
its  - iteration number
errest  - error estimate
mctx  - optional monitoring context, as set by LMEMonitorSet()

Options Database Keys

-lme_monitor  - print the error estimate
-lme_monitor draw::draw_lg  - sets line graph monitor for the error estimate
-lme_monitor_cancel  - cancels all monitors that have been hardwired into a code by calls to LMEMonitorSet(), but does not cancel those set via the options database.


Several different monitoring routines may be set by calling LMEMonitorSet() multiple times; all will be called in the order in which they were set.

See Also


Location: src/lme/interface/lmemon.c
Index of all LME routines
Table of Contents for all manual pages
Index of all manual pages