From 76b07fd3f5d7e3e3a03c69217cab2151fa83e926 Mon Sep 17 00:00:00 2001
From: Timo Heister <timo.heister@gmail.com>
Date: Wed, 5 Jun 2013 23:04:43 +0000
Subject: [PATCH] add failing test

git-svn-id: https://svn.dealii.org/branches/branch_unify_linear_algebra@29775 0785d39b-7218-0410-832d-ea1e28bc413d
---
 tests/gla/mat_02.cc                 | 101 ++++++++++++++++++++++++++++
 tests/gla/mat_02/ncpu_2/cmp/generic |  11 +++
 2 files changed, 112 insertions(+)
 create mode 100644 tests/gla/mat_02.cc
 create mode 100644 tests/gla/mat_02/ncpu_2/cmp/generic

diff --git a/tests/gla/mat_02.cc b/tests/gla/mat_02.cc
new file mode 100644
index 0000000000..9c3f08a744
--- /dev/null
+++ b/tests/gla/mat_02.cc
@@ -0,0 +1,101 @@
+//---------------------------------------------------------------------------
+//    $Id: ghost_01.cc 28440 2013-02-17 14:35:08Z heister $
+//    Version: $Name$ 
+//
+//    Copyright (C) 2004, 2005, 2010 by the deal.II authors
+//
+//    This file is subject to QPL and may not be  distributed
+//    without copyright and license information. Please refer
+//    to the file deal.II/doc/license.html for the  text  and
+//    further information on this license.
+//
+//---------------------------------------------------------------------------
+
+
+// create LA::MPI::SparseMatrix where one CPU has no DoFs
+
+// this is a bug in PETScWrappers right now!
+
+#include "../tests.h"
+#include <deal.II/lac/generic_linear_algebra.h>
+#include <deal.II/base/index_set.h>
+#include <fstream>
+#include <iostream>
+#include <iomanip>
+#include <vector>
+
+#include "gla.h"
+
+template <class LA> 
+void test ()
+{
+  unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
+  unsigned int numproc = Utilities::MPI::n_mpi_processes (MPI_COMM_WORLD);
+  
+  if (myid==0)
+    deallog << "numproc=" << numproc << std::endl;
+  
+  IndexSet local_active(10);
+  if (myid==0)
+    local_active.add_range(0,10);
+  IndexSet local_relevant= local_active;
+  if (myid==1)
+    local_relevant.add_range(5,10);
+
+  CompressedSimpleSparsityPattern csp (local_relevant);
+  
+  for (unsigned int i=0;i<10;++i)
+    if (local_relevant.is_element(i))
+      csp.add(i,i);
+
+  if (myid==0)
+    csp.add(0,1);
+ 
+  typename LA::MPI::SparseMatrix mat;
+  mat.reinit (local_active, local_active, csp, MPI_COMM_WORLD);
+
+  Assert(mat.n()==10, ExcInternalError());
+  Assert(mat.m()==10, ExcInternalError());
+
+  mat.set(0,0,0.1);
+  mat.set(1,1,0.1);  
+  
+  mat.compress(VectorOperation::insert);
+
+  mat.add(0,1,1.0);
+  
+  mat.compress(VectorOperation::add);
+  
+				   // check local values
+  if (myid==0)
+    {
+      deallog << "1,1 : " << mat(1,1) << std::endl;
+      deallog << "0,1 : " << mat(0,1) << std::endl;
+    }  
+
+				   // done
+  if (myid==0)
+    deallog << "OK" << std::endl;
+}
+
+
+
+int main (int argc, char **argv)
+{
+  Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, 1);
+  MPILogInitAll log(__FILE__);
+  {	
+    deallog.push("PETSc");
+    test<LA_PETSc>();
+    deallog.pop();	
+    deallog.push("Trilinos");
+    test<LA_Trilinos>();
+    deallog.pop();	
+  }
+  
+  // compile, don't run
+  //if (myid==9999)
+    //  test<LA_Dummy>();
+  
+
+}
diff --git a/tests/gla/mat_02/ncpu_2/cmp/generic b/tests/gla/mat_02/ncpu_2/cmp/generic
new file mode 100644
index 0000000000..88d363c606
--- /dev/null
+++ b/tests/gla/mat_02/ncpu_2/cmp/generic
@@ -0,0 +1,11 @@
+
+DEAL:0:PETSc::numproc=4
+DEAL:0:PETSc::0: 0
+DEAL:0:PETSc::1: 1.000
+DEAL:0:PETSc::0,1 : 4.000
+DEAL:0:PETSc::OK
+DEAL:0:Trilinos::numproc=4
+DEAL:0:Trilinos::0: 0
+DEAL:0:Trilinos::1: 1.000
+DEAL:0:Trilinos::0,1 : 4.000
+DEAL:0:Trilinos::OK
-- 
2.39.5