PETSc version 3.16.5
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# PetscFinalize

Checks for options to be called at the conclusion of the program. MPI_Finalize() is called only if the user had not called MPI_Init() before calling PetscInitialize().

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscFinalize(void)

Collective on PETSC_COMM_WORLD

### Options Database Keys

| -options_view | - Calls PetscOptionsView()
| -options_left | - Prints unused options that remain in the database
| -objects_dump [all] | - Prints list of objects allocated by the user that have not been freed, the option all cause all outstanding objects to be listed
| -mpidump | - Calls PetscMPIDump()
| -malloc_dump <optional filename> | - Calls PetscMallocDump(), displays all memory allocated that has not been freed
| -malloc_info | - Prints total memory usage
| -malloc_view <optional filename> | - Prints list of all memory allocated and where

### Note

See PetscInitialize() for more general runtime options.

### See Also

PetscInitialize(), PetscOptionsView(), PetscMallocDump(), PetscMPIDump(), PetscEnd()

### Level

beginner

### Location

src/sys/objects/pinit.c

### Examples

src/sys/classes/viewer/tutorials/ex1.c.html
src/sys/classes/viewer/tutorials/ex2.c.html
src/sys/classes/viewer/tutorials/ex1f90.F90.html
src/sys/classes/random/tutorials/ex1.c.html
src/sys/classes/random/tutorials/ex2.c.html
src/sys/logging/tutorials/ex1f.F90.html
src/sys/tutorials/ex1.c.html
src/sys/tutorials/ex2.c.html
src/sys/tutorials/ex3.c.html
src/sys/tutorials/ex4.c.html
src/sys/tutorials/ex5.c.html
Index of all Sys routines
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Index of all manual pages