Set operators also for unrestricted solve & without preconditioner.

BalticPinguin · BalticPinguin · commit f2ddeebe2144 · 2023-06-30T12:21:04.000+02:00
diff --git a/src/solvers/petsc_linear_solver.C b/src/solvers/petsc_linear_solver.C
@@ -632,6 +632,11 @@ PetscLinearSolver<T>::solve_base (SparseMatrix<T> * matrix,
           ierr = KSPSetOperators(_ksp, mat, const_cast<PetscMatrix<T> *>(precond)->mat());
           LIBMESH_CHKERR(ierr);
         }
+      else
+        {
+          ierr = KSPSetOperators(_ksp, mat, mat);
+          LIBMESH_CHKERR(ierr);
+        }
 
       if (this->_preconditioner)
         {

Original file line number	Diff line number	Diff line change
`@@ -632,6 +632,11 @@ PetscLinearSolver<T>::solve_base (SparseMatrix<T> * matrix,`
`632`	`632`	`ierr = KSPSetOperators(_ksp, mat, const_cast<PetscMatrix<T> *>(precond)->mat());`
`633`	`633`	`LIBMESH_CHKERR(ierr);`
`634`	`634`	`}`
	`635`	`+ else`
	`636`	`+ {`
	`637`	`+ ierr = KSPSetOperators(_ksp, mat, mat);`
	`638`	`+ LIBMESH_CHKERR(ierr);`
	`639`	`+ }`
`635`	`640`
`636`	`641`	`if (this->_preconditioner)`
`637`	`642`	`{`