ngsPETSc.vec

This module contains all the functions related to the NGSolve vector - PETSc vector mapping using the petsc4py interface.

Classes

VectorMapping

This class creates a mapping between a PETSc vector and NGSolve

Module Contents

class ngsPETSc.vec.VectorMapping(parDescr, prefix='ngs_')

This class creates a mapping between a PETSc vector and NGSolve vectors

Parameters:
  • parDescr – the finite element space for the vector or tuple (dofs, freeDofs)

  • prefix – prefix for PETSc options

dofs
bsize
locfree
isetlocfree
nloc
nglob
sVec
pVec
ngsToPETScScat
petscVec(ngsVec, petscVec=None)

This function generate a PETSc vector from a NGSolve vector

Parameters:
  • ngsVec – the NGSolve vector

  • petscVec – the PETSc vector to be loaded with NGSolve

vector, if None new PETSc vector is generated, by deafault None.

ngsVec(petscVec, ngsVec=None)

This function generate a NGSolve vector from a PETSc vector

Parameters:
  • petscVec – the PETSc vector

  • ngsVec – the NGSolve vector vector to be loaded with PETSc

vector, if None new PETSc vector is generated, by deafault None.