#include <petsclog.h> void PetscPreLoadBegin(PetscBool flag,char *name);Not Collective
| flag | - PETSC_TRUE to run twice, PETSC_FALSE to run once, may be overridden with command line option -preload true or -preload false | |
| name | - name of first stage (lines of code timed separately with -log_view) to be preloaded |
PetscPreLoadBegin(PETSC_TRUE,"first stage);
lines of code
PetscPreLoadStage("second stage");
lines of code
PetscPreLoadEnd();
Notes: Only works in C/C++, not Fortran
Flags available within the macro.
| PetscPreLoadingUsed | - true if we are or have done preloading | |
| PetscPreLoadingOn | - true if it is CURRENTLY doing preload | |
| PetscPreLoadIt | - 0 for the first computation (with preloading turned off it is only 0) 1 for the second | |
| PetscPreLoadMax | - number of times it will do the computation, only one when preloading is turned on The first two variables are available throughout the program, the second two only between the PetscPreLoadBegin() and PetscPreLoadEnd() |