petsc-3.14.5 2021-03-03
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# PetscLogMPEBegin

Turns on MPE logging of events. This creates large log files and slows the program down.

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscLogMPEBegin(void)

Collective over PETSC_COMM_WORLD

### Options Database Keys

| -log_mpe | - Prints extensive log information

### Notes

A related routine is PetscLogDefaultBegin() (with the options key -log_view), which is intended for production runs since it logs only flop rates and object creation (and should not significantly slow the programs).

### See Also

PetscLogDump(), PetscLogDefaultBegin(), PetscLogAllBegin(), PetscLogEventActivate(),
PetscLogEventDeactivate()

### Level

advanced

### Location

src/sys/logging/plog.c
Index of all Profiling routines
Table of Contents for all manual pages
Index of all manual pages