petsc-3.14.6 2021-03-30
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PetscLogDefaultBegin

 Turns on logging of objects and events. This logs flop rates and object creation and should not slow programs down too much. This routine may be called more than once.

Synopsis

#include "petscsys.h"   
PetscErrorCode  PetscLogDefaultBegin(void)
Logically Collective over PETSC_COMM_WORLD

Options Database Keys

-log_view [viewertype:filename:viewerformat] - Prints summary of flop and timing information to the screen (for code configured with --with-log=1 (which is the default))

Usage

      PetscInitialize(...);
      PetscLogDefaultBegin();
       ... code ...
      PetscLogView(viewer); or PetscLogDump();
      PetscFinalize();

Notes

PetscLogView(viewer) or PetscLogDump() actually cause the printing of the logging information.

See Also

PetscLogDump(), PetscLogAllBegin(), PetscLogView(), PetscLogTraceBegin()

Level

advanced

Location

src/sys/logging/plog.c

Examples

src/ksp/ksp/tutorials/ex79.c.html

Index of all Profiling routines
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Index of all manual pages