From 626e8dd243b38ccb835bf4734b5c0d1855fa55d5 Mon Sep 17 00:00:00 2001
From: Andreas Lauser <and@poware.org>
Date: Mon, 24 Jun 2019 14:23:55 +0200
Subject: [PATCH] ebos: set the default for the number of threads to 2 if
 openMP is available

this value is was chosen to exactly replicate `flow`'s behavior. IMO,
it would be less surprising to set the default to `1`, i.e., the user
needs to specify `--threads-per-process=$N` explicitly if
multithreaded linearization ought to be used.
---
 ebos/ebos.hh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ebos/ebos.hh b/ebos/ebos.hh
index 573a612a2..12fdc0025 100644
--- a/ebos/ebos.hh
+++ b/ebos/ebos.hh
@@ -99,6 +99,12 @@ SET_INT_PROP(EbosTypeTag, EclNewtonStrictIterations, 100);
 // relatively often)
 SET_INT_PROP(EbosTypeTag, NewtonMaxIterations, 8);
 
+// if openMP is available, set the default the number of threads per process for the main
+// simulation to 2 (instead of grabbing everything that is available).
+#if _OPENMP
+SET_INT_PROP(EbosTypeTag, ThreadsPerProcess, 2);
+#endif
+
 END_PROPERTIES
 
 namespace Ewoms {