Checks the memory for corruption, calls error handler if any is detected
We 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_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.
CHKMEMA for functions that return void