"Mark F. Adams" <[email protected]> writes: > And I'm a bit puzzled because I don't know how '-random_seed 1' could > be used in GAMG to compute eigen estimates...
Look at PetscRandomSetFromOptions.
ierr = PetscOptionsInt("-random_seed","Seed to use to generate random
numbers","PetscRandomSetSeed",0,&seed,&set);CHKERRQ(ierr);
if (set) {
ierr = PetscRandomSetSeed(rnd,(unsigned long int)seed);CHKERRQ(ierr);
ierr = PetscRandomSeed(rnd);CHKERRQ(ierr);
}
Otherwise the default seed is used, but that changes for repeat solves.
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