From da7a1770dbf2fcdd47814e6adcb195e854696f62 Mon Sep 17 00:00:00 2001
From: Thomas Baumann <39156931+brownbaerchen@users.noreply.github.com>
Date: Fri, 20 Dec 2024 15:23:44 +0100
Subject: [PATCH] Perform at least one SDC iteration (#509)
* Perform at least one SDC iteration
* Can use only prediction if predicting exotically
* Reverted last commit
---
.../convergence_controller_classes/check_convergence.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pySDC/implementations/convergence_controller_classes/check_convergence.py b/pySDC/implementations/convergence_controller_classes/check_convergence.py
index 36cb8e4a2..c76acebeb 100644
--- a/pySDC/implementations/convergence_controller_classes/check_convergence.py
+++ b/pySDC/implementations/convergence_controller_classes/check_convergence.py
@@ -73,7 +73,7 @@ class CheckConvergence(ConvergenceController):
# get residual and check against prescribed tolerance (plus check number of iterations)
iter_converged = S.status.iter >= S.params.maxiter
- res_converged = L.status.residual <= L.params.restol
+ res_converged = L.status.residual <= L.params.restol and (S.status.iter > 0 or L.status.sweep > 0)
e_tol_converged = (
L.status.increment < L.params.e_tol if (L.params.get('e_tol') and L.status.get('increment')) else False
)
--
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