PetscMemoryGetMaximumUsage#

Returns the maximum resident set size (memory used) for the program since it started (the high water mark).

Synopsis#

#include "petscsys.h" 
PetscErrorCode PetscMemoryGetMaximumUsage(PetscLogDouble *mem)

Not Collective

Output Parameter#

  • mem - memory usage in bytes

Options Database Key#

  • -memory_view - Print memory usage at end of run

  • -log_view_memory - Print memory information per event

  • -malloc_view - Print usage of PetscMalloc() in PetscFinalize()

Note#

The memory usage reported here includes all Fortran arrays (that may be used in application-defined sections of code). This routine thus provides a more complete picture of memory usage than PetscMallocGetCurrentUsage() for codes that employ Fortran with hardwired arrays.

See Also#

PetscMallocGetMaximumUsage(), PetscMemoryGetCurrentUsage(), PetscMallocGetCurrentUsage(), PetscMemorySetGetMaximumUsage()

Level#

intermediate

Location#

src/sys/memory/mem.c

Index of all Sys routines
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Index of all manual pages