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just pass vectors through to the PETSc interface #183

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merged 1 commit into from Dec 10, 2013
Merged

just pass vectors through to the PETSc interface #183

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10 changes: 8 additions & 2 deletions src/numerics/petsc_vector.C
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Expand Up @@ -212,8 +212,14 @@ void PetscVector<T>::add_vector (const std::vector<T>& v,
this->_restore_array();
libmesh_assert_equal_to (v.size(), dof_indices.size());

for (unsigned int i=0; i<v.size(); i++)
this->add (dof_indices[i], v[i]);
PetscErrorCode ierr=0;
const PetscInt * i_val = reinterpret_cast<const PetscInt*>(&dof_indices[0]);
const PetscScalar * petsc_value = static_cast<const PetscScalar*>(&v[0]);

ierr = VecSetValues (_vec, v.size(), i_val, petsc_value, ADD_VALUES);
LIBMESH_CHKERRABORT(ierr);

this->_is_closed = false;
}


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