PetscLogHandlerStart#
Connect a log handler to PETSc’s global logging stream and state.
Synopsis#
#include "petscsys.h"
PetscErrorCode PetscLogHandlerStart(PetscLogHandler h)
Logically collective
Input Parameters#
h - a
PetscLogHandler
Notes#
Users should only need this if they create their own log handlers: handlers that are started
from the command line (such as -log_view and -log_trace) or from a function like
PetscLogNestedBegin() will automatically be started.
There is a limit of PESC_LOG_HANDLER_MAX handlers that can be active at one time.
To disconnect a handler from the global stream call PetscLogHandlerStop().
When a log handler is started, stages that have already been pushed with PetscLogStagePush(),
will be pushed for the new log handler, but it will not be informed of any events that are
in progress. It is recommended to start any user-defined log handlers immediately following
PetscInitialize() before any user-defined stages are pushed.
See Also#
Profiling, PetscLogHandler, PetscLogState, PetscLogHandlerStop(), PetscInitialize()
Level#
developer
Location#
Index of all Profiling routines
Table of Contents for all manual pages
Index of all manual pages