petsc-3.13.6 2020-09-29

PetscRandomSetFromOptions

Configures the random number generator from the options database.

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

Collective on PetscRandom

rnd -The random number generator context

	-random_seed <integer>	- provide a seed to the random number generater
	-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

To see all options, run your program with the -help option. Must be called after PetscRandomCreate() but before the rnd is used.

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