PetscGetCPUTime#
Returns the CPU time in seconds used by the process.
Synopsis#
#include "petscsys.h" 
#include "petsctime.h" 
PetscErrorCode PetscGetCPUTime(PetscLogDouble *t)
Not Collective
Output Parameter#
- t - Time in seconds charged to the process. 
Example#
    #include <petscsys.h>
    ...
    PetscLogDouble t1, t2;
    PetscCall(PetscGetCPUTime(&t1));
    ... code to time ...
    PetscCall(PetscGetCPUTime(&t2));
    printf("Code took %f CPU seconds\n", t2-t1);
Note#
One should use the -log_view option of PETSc for profiling. The CPU time is NOT a realistic number to use since it does not include the time for message passing etc. Also on many systems the accuracy is only on the order of microseconds.
See Also#
PetscTime(), PetscLogView()
Level#
intermediate
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages