Skip to content

Add checking if PETSc Vec exists and is supported. #189

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jorgensd merged 1 commit into from
Feb 25, 2026
Merged

Add checking if PETSc Vec exists and is supported. #189

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 15 additions & 4 deletions src/scifem/point_source.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,13 +3,22 @@
# SPDX-License-Identifier: MIT

from __future__ import annotations
from typing import TYPE_CHECKING

from packaging.version import Version
from mpi4py import MPI
from petsc4py import PETSc

if TYPE_CHECKING:
from petsc4py import PETSc

try:
from petsc4py import PETSc

_HAS_PETSC = True
except ImportError:
_HAS_PETSC = False

import dolfinx
import dolfinx.fem.petsc
import numpy as np
import numpy.typing as npt
import ufl
Expand Down Expand Up @@ -158,7 +167,7 @@ def compute_cell_contributions(self):
self._basis_values = basis_values

def apply_to_vector(
self, b: dolfinx.fem.Function | dolfinx.la.Vector | PETSc.Vec, recompute: bool = False
self, b: dolfinx.fem.Function | dolfinx.la.Vector | "PETSc.Vec", recompute: bool = False
):
"""Apply the point sources to a vector.

Expand Down Expand Up @@ -187,9 +196,11 @@ def apply_to_vector(
b.x.array[dofs] += values * self._magnitude
elif isinstance(b, dolfinx.la.Vector):
b.array[dofs] += values * self._magnitude
elif isinstance(b, PETSc.Vec):
elif _HAS_PETSC and isinstance(b, PETSc.Vec):
b.setValuesLocal(
dofs,
values * self._magnitude,
addv=PETSc.InsertMode.ADD_VALUES,
)
else:
raise TypeError(f"Unsupported vector type {type(b)}.")
Loading