petsc-3.7.3 2016-07-24
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# PetscTime

Returns the current time of day in seconds.

### Synopsis

    #include <petsctime.h>
    PetscTime(PetscLogDouble *v)

Not Collective

### Output Parameter

v -time counter

### Usage

PetscLogDouble v; PetscTime(&v); .... perform some calculation ... printf("Time for operation %g\n",v);

### Notes

Since the PETSc libraries incorporate timing of phases and operations, we do not recommend ever using PetscTime() The options database command -log_summary activate PETSc library timing. See Users-Manual: Chapter 13 Profiling for more details.

### See Also

PetscTimeSubtract(), PetscTimeAdd(), PetscLogStageRegister(), PetscLogEventRegister(), PetscLogEventBegin(), PetscLogEventEnd()

### Keywords

Petsc, time

Level:developer
Location: src/sys/time/../../../include/petsctime.h
Index of all Sys routines
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Index of all manual pages