CHKMEMQ#
Checks the memory for corruption, calls error handler if any is detected
Synopsis#
#include <petscsys.h>
CHKMEMQ;
Not Collective
Notes#
We highly recommend using Valgrind https://petsc.org/release/faq/#valgrind or for NVIDIA CUDA systems
https://docs.nvidia.com/cuda/cuda-memcheck/index.html for finding memory problems. The CHKMEMQ
macro is useful on systems that
do not have valgrind, but is not as good as valgrind or cuda-memcheck.
Must run with the option -malloc_debug
(-malloc_test
in debug mode; or if PetscMallocSetDebug()
called) to enable this option
Once the error handler is called the calling function is then returned from with the given error code.
By defaults prints location where memory that is corrupted was allocated.
Use CHKMEMA
for functions that return void
See Also#
PetscTraceBackErrorHandler()
, PetscPushErrorHandler()
, PetscError()
, SETERRQ()
, PetscMallocValidate()
Level#
beginner
Location#
Examples#
src/dm/field/tutorials/ex1.c
src/dm/tutorials/ex11f90.F90
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages