petsc-3.4.5 2014-06-29

PetscTimeSubtract

Subtracts the current time of day (in seconds) from the value v.

Synopsis

#include "petsctime.h"
PetscTimeSubtract(&PetscLogDouble *v)

Not Collective

Input Parameter

v -time counter

Output Parameter

v -time counter (v = v - current time)

Notes

Since the PETSc libraries incorporate timing of phases and operations, we do not every recommend using PetscTimeSubtract() The options database command -log_summary activates PETSc library timing. See the <A href="../../docs/manual.pdf">Users Manual</A> for more details, also see PetscLogStageRegister(), PetscLogEventRegister(), PetscLogEventBegin(), PetscLogEventEnd() for how to register stages and events in application codes.

Keywords

Petsc, time, subtract