PetscTimeSubtract#
Subtracts the current time (in seconds) from the value v
.
Synopsis#
static inline PetscErrorCode PetscTimeSubtract(PetscLogDouble *v)
Not Collective
Input Parameter#
v - time counter
Output Parameter#
v - time counter (
v
=v
- current time)
Note#
Since the PETSc libraries incorporate timing of phases and operations, we do not always recommend using PetscTimeSubtract()
.
The options database command -log_view
activates PETSc library timing.
See PetscLogStageRegister()
, PetscLogEventRegister()
, PetscLogEventBegin()
, PetscLogEventEnd()
for how to register
stages and events in application codes.
See Also#
PetscTime()
, PetscTimeAdd()
, PetscLogStageRegister()
, PetscLogEventRegister()
, PetscLogEventBegin()
, PetscLogEventEnd()
Level#
developer
Location#
Examples#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages