PetscRandomSetFromOptions#

Configures the random number generator from the options database.

Synopsis#

#include "petscsys.h" 
PetscErrorCode PetscRandomSetFromOptions(PetscRandom rnd)

Collective

-random_seed - provide a seed to the random number generator
-random_no_imaginary_part - makes the imaginary part of the random number zero, this is useful when you want the same code to produce the same result when run with real numbers or complex numbers for regression testing purposes

Must be called after PetscRandomCreate() but before the rnd is used.

beginner