VecSetRandom#
Sets all components of a vector to random numbers.
Synopsis#
#include "petscvec.h"
PetscErrorCode VecSetRandom(Vec x, PetscRandom rctx)
Logically Collective
Input Parameters#
x - the vector
rctx - the random number context, formed by
PetscRandomCreate(), or useNULLand it will create one internally.
Output Parameter#
x - the vector
Example of Usage#
PetscRandomCreate(PETSC_COMM_WORLD,&rctx);
VecSetRandom(x,rctx);
PetscRandomDestroy(&rctx);
See Also#
Vectors and Parallel Data, Vec, VecSet(), VecSetValues(), PetscRandomCreate(), PetscRandomDestroy()
Level#
intermediate
Location#
Examples#
src/ksp/ksp/tutorials/ex11f.F90
src/ksp/ksp/tutorials/ex81a.c
src/ksp/ksp/tutorials/ex11.c
src/ksp/ksp/tutorials/ex60.c
src/ksp/ksp/tutorials/ex5f.F90
src/ksp/ksp/tutorials/ex77.c
src/ksp/ksp/tutorials/ex81.c
src/ksp/ksp/tutorials/ex2f.F90
src/ksp/ksp/tutorials/ex46.c
src/ksp/ksp/tutorials/ex10.c
Implementations#
VecSetRandom_Nest() in src/vec/vec/impls/nest/vecnest.c
VecSetRandom_Seq() in src/vec/vec/impls/seq/bvec2.c
VecSetRandom_SeqKokkos() in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecSetRandom_SeqViennaCL() in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages