From 7bb9c0af0868ccdd618e8f3c50f4f0db6c3fbdea Mon Sep 17 00:00:00 2001
From: Dmitri Naumov <dmitri.naumov@ufz.de>
Date: Fri, 21 Jun 2024 13:23:50 +0200
Subject: [PATCH] [T/THM] Use better preconditioner for PETSc
Otherwise "divergence is detected" in the first iteration
of the first time step.
---
.../ThermoHydroMechanics/HeatingHomogeneousDomain/hex_THM.prj | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Tests/Data/ThermoHydroMechanics/HeatingHomogeneousDomain/hex_THM.prj b/Tests/Data/ThermoHydroMechanics/HeatingHomogeneousDomain/hex_THM.prj
index a19417ed2bb..0036222525f 100644
--- a/Tests/Data/ThermoHydroMechanics/HeatingHomogeneousDomain/hex_THM.prj
+++ b/Tests/Data/ThermoHydroMechanics/HeatingHomogeneousDomain/hex_THM.prj
@@ -317,7 +317,7 @@
<petsc>
<parameters>
-ksp_type bcgs
- -pc_type jacobi
+ -pc_type gamg
-ksp_rtol 1.e-12 -ksp_atol 1.e-14
-ksp_max_it 4000
</parameters>
--
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