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 NULL and 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/vec/vec/tutorials/ex19.c.html
src/vec/vec/tutorials/performance.c.html
src/ksp/pc/tutorials/ex3.c.html
src/ksp/ksp/tutorials/ex10.c.html
src/ksp/ksp/tutorials/ex11.c.html
src/ksp/ksp/tutorials/ex11f.F90.html
src/ksp/ksp/tutorials/ex18.c.html
src/ksp/ksp/tutorials/ex2f.F90.html
src/ksp/ksp/tutorials/ex46.c.html
src/ksp/ksp/tutorials/ex5.c.html
src/ksp/ksp/tutorials/ex52.c.html
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_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda.c
VecSetRandom_SeqHIP in src/vec/vec/impls/seq/seqhip/vechip.hip.c
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