CHKMEMQ#
Checks the memory for corruption, calls error handler if any is detected
Synopsis#
#include <petscsys.h>
CHKMEMQ;
Not Collective
Notes#
We recommend using Valgrind https://petsc.org/release/faq/#valgrind or Compute Sanitizer
https://developer.nvidia.com/compute-sanitizer on NVIDIA CUDA systems for finding memory problems. The CHKMEMQ
macro is useful on systems that do not have valgrind, but is not as good as valgrind or compute-sanitizer.
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#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages