test copying Trilinos SparseMatrix

It looks like Trilinos is overwriting a matrix even though I am making a
copy. Test currently fails.

diff --git a/tests/mpi/trilinos_sparse_matrix_02.cc b/tests/mpi/trilinos_sparse_matrix_02.cc
new file mode 100644 (file)
index 0000000..c219430
--- /dev/null
+++ b/tests/mpi/trilinos_sparse_matrix_02.cc
@@ -0,0 +1,120 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2004 - 2013 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+
+
+
+// This demonstrates a bug where copying a Trilinos matrix and then modifying
+// the source will edit both matrices.
+
+#include "../tests.h"
+#include <deal.II/base/utilities.h>
+#include <deal.II/base/index_set.h>
+#include <deal.II/lac/trilinos_sparse_matrix.h>
+#include <deal.II/lac/trilinos_sparsity_pattern.h>
+#include <deal.II/lac/trilinos_vector.h>
+#include <deal.II/lac/parallel_vector.h>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+
+void test ()
+{
+  const unsigned int n_procs = Utilities::MPI::n_mpi_processes(MPI_COMM_WORLD);
+  const unsigned int my_id = Utilities::MPI::this_mpi_process(MPI_COMM_WORLD);
+
+  const unsigned int n_rows = 4;
+
+  IndexSet locally_owned (n_rows);
+
+  if (n_procs == 1)
+    {
+      locally_owned.add_range(0, n_rows);
+    }
+  else if (n_procs == 2)
+    {
+      // should be { [0, 2), [2, n_rows) }
+      if (my_id == 0)
+       locally_owned.add_range(0, 2);
+      else if (my_id == 1)
+       locally_owned.add_range(2, n_rows);
+    }
+  else
+    Assert (false, ExcNotImplemented());
+
+  TrilinosWrappers::SparsityPattern sp (locally_owned, locally_owned, MPI_COMM_WORLD);
+  if (my_id == 0)
+    {
+      sp.add (0, 0);
+      sp.add (0, 2);
+    }
+  if ((n_procs == 1) || (my_id == 1))
+    sp.add(2,3);
+  sp.compress();
+
+  TrilinosWrappers::SparseMatrix A;
+  A.reinit (sp);
+  TrilinosWrappers::SparseMatrix B;
+  B.reinit(A);
+ 
+  A.add(0, 0, 0.1);
+  A.add(0, 2, 0.2);
+  if ((n_procs == 1) || (my_id == 1))
+      A.add(2,3, 0.3);
+
+  double l1a = (n_procs==1) ? 0.3 : 0.4;
+  double l1b = n_procs*1.2;
+  
+  A.compress(VectorOperation::add);
+  deallog << "1: " << A.l1_norm() << " " << B.l1_norm()
+         << " (should be " << l1a << " 0.0)" << std::endl;
+
+  deallog << "set B=A..." << std::endl;
+  
+  B = A;
+  deallog << "2: " << A.l1_norm() << " " << B.l1_norm()
+         << " (should be " << l1a << " " << l1a << ")" << std::endl;
+
+  if (my_id==0)
+    {
+      deallog << "A(0,0)=" << A(0,0) << std::endl;
+      deallog << "B(0,0)=" << B(0,0) << std::endl;
+    }
+
+  deallog << "reassemble A..." << std::endl;
+  
+  A = 0;
+  A.add(0, 0, -1.2);
+  A.compress(VectorOperation::add);
+  deallog << "3: " << A.l1_norm() << " " << B.l1_norm()
+         << " (should be " << l1b << " " << l1a << ")" << std::endl;
+  
+  if (my_id==0)
+    {
+      deallog << "A(0,0)=" << A(0,0) << std::endl;
+      deallog << "B(0,0)=" << B(0,0) << std::endl;
+    }
+
+  if (my_id == 0) deallog << "OK" << std::endl;
+}
+
+
+
+int main (int argc, char **argv)
+{
+  Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, 1);
+  MPILogInitAll log;
+  test();
+}

diff --git a/tests/mpi/trilinos_sparse_matrix_02.with_trilinos=true.mpirun=1.output b/tests/mpi/trilinos_sparse_matrix_02.with_trilinos=true.mpirun=1.output
new file mode 100644 (file)
index 0000000..ce91aeb
--- /dev/null
+++ b/tests/mpi/trilinos_sparse_matrix_02.with_trilinos=true.mpirun=1.output
@@ -0,0 +1,11 @@
+
+DEAL:0::1: 0.300000 0.00000 (should be 0.300000 0.0)
+DEAL:0::set B=A...
+DEAL:0::2: 0.300000 0.300000 (should be 0.300000 0.300000)
+DEAL:0::A(0,0)=0.100000
+DEAL:0::B(0,0)=0.100000
+DEAL:0::reassemble A...
+DEAL:0::3: 1.20000 0.300000 (should be 1.20000 0.300000)
+DEAL:0::A(0,0)=-1.20000
+DEAL:0::B(0,0)=0.100000
+DEAL:0::OK

diff --git a/tests/mpi/trilinos_sparse_matrix_02.with_trilinos=true.mpirun=2.output b/tests/mpi/trilinos_sparse_matrix_02.with_trilinos=true.mpirun=2.output
new file mode 100644 (file)
index 0000000..2b39360
--- /dev/null
+++ b/tests/mpi/trilinos_sparse_matrix_02.with_trilinos=true.mpirun=2.output
@@ -0,0 +1,18 @@
+
+DEAL:0::1: 0.400000 0.00000 (should be 0.400000 0.0)
+DEAL:0::set B=A...
+DEAL:0::2: 0.400000 0.400000 (should be 0.400000 0.400000)
+DEAL:0::A(0,0)=0.200000
+DEAL:0::B(0,0)=0.200000
+DEAL:0::reassemble A...
+DEAL:0::3: 2.40000 0.400000 (should be 2.40000 0.400000)
+DEAL:0::A(0,0)=-2.40000
+DEAL:0::B(0,0)=0.200000
+DEAL:0::OK
+
+DEAL:1::1: 0.400000 0.00000 (should be 0.400000 0.0)
+DEAL:1::set B=A...
+DEAL:1::2: 0.400000 0.400000 (should be 0.400000 0.400000)
+DEAL:1::reassemble A...
+DEAL:1::3: 2.40000 0.400000 (should be 2.40000 0.400000)
+