VecCreateComp#

Creates a new vector containing several subvectors, each stored separately.

Synopsis#

#include "slepcvec.h" 
PetscErrorCode VecCreateComp(MPI_Comm comm,PetscInt Nx[],PetscInt n,VecType t,Vec Vparent,Vec *V)

Collective

Input Parameters#

  • comm - communicator for the new Vec

  • Nx - array of (initial) global sizes of child vectors

  • n - number of child vectors

  • t - type of the child vectors

  • Vparent - (optional) template vector

Output Parameter#

  • V - new vector

Notes#

This is similar to PETSc’s VECNEST but customized for SLEPc’s needs. In particular, the number of child vectors can be modified dynamically, with VecCompSetSubVecs().

See Also#

VecCreateCompWithVecs(), VecCompSetSubVecs()

Level#

developer

Location#

src/sys/vec/veccomp.c

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