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blob b3df4b6ffa0ff07b278cb1a65675ecd3fe4547e4 2126 bytes (raw)
name: gnu/packages/patches/dune-istl-fix-solver-playground.patch 	 # note: path name is non-authoritative(*)

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From fe929f17e98b577171f58ca520b5145be41730ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <gruenich@dune-project.org>
Date: Thu, 16 Mar 2023 19:48:40 +0100
Subject: [PATCH] Adjust sequential and both parallel cases in
 istl-solver-playground

Do same thing, independent of paralellel, distributed, or
sequential.
This fixes the test in the sequential case.
---
 src/istl-solver-playground.hh | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/src/istl-solver-playground.hh b/src/istl-solver-playground.hh
index 0ff3abd5..11693cf5 100644
--- a/src/istl-solver-playground.hh
+++ b/src/istl-solver-playground.hh
@@ -66,7 +66,11 @@ std::shared_ptr<OOCOMM> loadSystem(std::shared_ptr<Mat>& m,
   std::shared_ptr<OOCOMM> oocomm;
   if(distributed){
     oocomm = std::make_shared<OOCOMM>(MPI_COMM_WORLD);
-    loadMatrixMarket(*m, matrixfilename, *oocomm);
+    if(matrixfilename != "laplacian"){
+      loadMatrixMarket(*m, matrixfilename, *oocomm);
+    }else{
+      setupLaplacian(*m, config.get("N", 20));
+    }
     if(config.get("random_rhs", false)){
       rhs->resize(m->N());
       srand(42);
@@ -98,16 +102,22 @@ template<class Mat, class Vec>
 void loadSystem(std::shared_ptr<Mat>& m,
                 std::shared_ptr<Vec>& rhs,
                 const Dune::ParameterTree& config){
-  std::string matrixfilename = config.get<std::string>("matrix");
+  // generate Laplacian or load matrix
+  std::string matrixfilename = config.get<std::string>("matrix", "laplacian");
+  if(matrixfilename == "laplacian"){
+    setupLaplacian(*m, config.get("N", 20));
+  }else{
+    loadMatrixMarket(*m, matrixfilename);
+  }
+  // use random values or load right-hand side
   std::string rhsfilename;
-  if(!config.get("random_rhs", false))
-    rhsfilename = config.get<std::string>("rhs");
-  loadMatrixMarket(*m, matrixfilename);
   if(config.get("random_rhs", false)){
     rhs->resize(m->N());
     fillRandom(*rhs);
-  }else
+  }else{
+    rhsfilename = config.get<std::string>("rhs");
     loadMatrixMarket(*rhs, rhsfilename);
+  }
 }
 #endif
 
-- 
2.39.2


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