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From d6891c90f49d809cc3150d1b6e36c9d74df8f664 Mon Sep 17 00:00:00 2001
From: Christophe Prud'homme <christophe.prudhomme@feelpp.org>
Date: Fri, 6 Oct 2017 08:28:49 +0200
Subject: [PATCH] petsc 3.8 seems to work fine with feel++ fixes #1068
---
feel/feelalg/preconditionerpetsc.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/feel/feelalg/preconditionerpetsc.cpp b/feel/feelalg/preconditionerpetsc.cpp
index f9d5287b7f..0ad7bf4f36 100644
--- a/feel/feelalg/preconditionerpetsc.cpp
+++ b/feel/feelalg/preconditionerpetsc.cpp
@@ -2954,8 +2954,12 @@ ConfigurePCGAMG::run( PC& pc )
this->check( PCGAMGSetProcEqLim( pc, M_procEqLim ) );
// Set max number of equations on coarse grids
this->check( PCGAMGSetCoarseEqLim( pc, M_coarseEqLim ) );
+#if PETSC_VERSION_GREATER_OR_EQUAL_THAN( 3,8,0 )
+ this->check( PCGAMGSetThresholdScale( pc, M_threshold ) );
+#else
// Relative threshold to use for dropping edges in aggregation graph
this->check( PCGAMGSetThreshold( pc, M_threshold ) );
+#endif
// not works!!(seems to be missing PetscObjectComposeFunction with this function)
//this->check( PCGAMGSetSymGraph( pc, ( M_setSymGraph )?PETSC_TRUE : PETSC_FALSE ) );
// Reuse prolongation operator
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