PetscMallocSetDebug

Set’s PETSc memory debugging

Synopsis

#include "petscsys.h" 
PetscErrorCode PetscMallocSetDebug(PetscBool eachcall, PetscBool initializenan)

Not Collective

Input Parameters

• eachcall - checks the entire heap of allocated memory for issues on each call to PetscMalloc() and PetscFree(), slow

• initializenan - initializes all memory with NaN to catch use of uninitialized floating point arrays

Options Database Keys

• -malloc_debug - turns on or off debugging

• -malloc_test - turns on all debugging if PETSc was configured with debugging including -malloc_dump, otherwise ignored

• -malloc_view_threshold t - log only allocations larger than t

• -malloc_dump - print a list of all memory that has not been freed, in PetscFinalize()

Note

This is called in PetscInitialize() and should not be called elsewhere

See Also

CHKMEMQ, PetscMallocValidate(), PetscMallocGetDebug(), PetscMalloc(), PetscFree()

Level

developer

Location

src/sys/memory/mtr.c

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Index of all Sys routines
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Index of all manual pages