Merge pull request #27287 from roystgnr/cast_check

Check whether `_eigen_sys` was cast successfully
idaholab · Apr 4, 2024 · bfbeaaf · bfbeaaf
2 parents a747086 + 741e790
commit bfbeaaf
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/framework/src/kernels/EigenKernel.C b/framework/src/kernels/EigenKernel.C
@@ -185,6 +185,13 @@ EigenKernel::enabled() const
   bool flag = MooseObject::enabled();
   if (_eigen)
   {
+    if (!_eigen_sys)
+      mooseError("Eigen kernel ",
+                 name(),
+                 " requires a MooseEigenSystem and was designed to work with old eigenvalue",
+                 " executioners such as 'NonlinearEigen'.  It is suggested to use the new",
+                 " eigenvalue executioner 'Eigenvalue' along with kernel tagging");
+
     if (_is_implicit)
       return flag && (!_eigen_sys->activeOnOld());
     else