Fix bug

ginkgo-project · Feb 13, 2023 · 6d1647a · 6d1647a
1 parent cb252bd
commit 6d1647a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/core/solver/gcr.cpp b/core/solver/gcr.cpp
@@ -279,6 +279,9 @@ template <typename ValueType>
 void Gcr<ValueType>::apply_impl(const LinOp* alpha, const LinOp* b,
                                 const LinOp* beta, LinOp* x) const
 {
+    if (!this->get_system_matrix()) {
+        return;
+    }
     precision_dispatch_real_complex<ValueType>(
         [this](auto dense_alpha, auto dense_b, auto dense_beta, auto dense_x) {
             auto x_clone = dense_x->clone();