+++ /dev/null
-//---------------------------------------------------------------------------
-// $Id$
-// Version: $Name$
-//
-// Copyright (C) 2009, 2010, 2012, 2013 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.
-//
-//---------------------------------------------------------------------------
-
-
-// check ConstraintMatrix.distribute() for a petsc vector
-//
-// we do this by creating a vector where each processor has 100
-// elements but no ghost elements. then we add constraints on each
-// processor that constrain elements within each processor's local
-// range to ones outside. these have to be added on all
-// processors. then call distribute() and verify that the result is
-// true.
-//
-// we use constraints of the form x_i = x_j with sequentially growing
-// x_j's so that we can verify the correctness analytically
-//
-// compared to the _01 test, here the ConstraintMatrix object acts on an index
-// set that only includes the locally owned vector elements, without any
-// overlap. this means that the owners of a source DoF in a constraint
-// do not know about the constraint if the constrained DoF is owned by
-// another processor. This is not allowed, and should trigger an
-// exception.
-
-
-#include "../tests.h"
-#include <deal.II/base/logstream.h>
-#include <deal.II/lac/petsc_parallel_vector.h>
-#include <deal.II/lac/constraint_matrix.h>
-
-#include <fstream>
-#include <sstream>
-
-
-
-void test()
-{
- const unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
- const unsigned int n_processes = Utilities::MPI::n_mpi_processes (MPI_COMM_WORLD);
-
- // create a vector that consists of elements indexed from 0 to n
- PETScWrappers::MPI::Vector vec (MPI_COMM_WORLD, 100 * n_processes, 100);
- Assert (vec.local_size() == 100, ExcInternalError());
- Assert (vec.local_range().first == 100*myid, ExcInternalError());
- Assert (vec.local_range().second == 100*myid+100, ExcInternalError());
- for (unsigned int i=vec.local_range().first; i<vec.local_range().second; ++i)
- vec(i) = i;
- vec.compress();
-
- // verify correctness so far
- {
- double exact_l1 = 0;
- for (unsigned int i=0; i<vec.size(); ++i)
- exact_l1 += i;
- Assert (vec.l1_norm() == exact_l1, ExcInternalError());
- }
-
-
- // create a ConstraintMatrix with a range that only includes locally owned
- // DoFs
- IndexSet locally_owned_range (vec.size());
- locally_owned_range.add_range (100*myid,
- 100*myid+100);
- ConstraintMatrix cm (locally_owned_range);
-
- // add constraints that constrain an element in the middle of the
- // local range of each processor against an element outside, both in
- // the ghost range before and after
- //
- // note that we tell each processor about all constraints, but most
- // of them will throw away this information since it is not for a
- // DoF inside the locally relevant range
- for (unsigned int p=0; p<n_processes; ++p)
- {
- if ((p != 0) && locally_owned_range.is_element (p*100+10))
- {
- cm.add_line (p*100+10);
- cm.add_entry (p*100+10,
- p*100-25,
- 1);
- }
-
- if ((p != n_processes-1) && locally_owned_range.is_element (p*100+90))
- {
- cm.add_line (p*100+90);
- cm.add_entry (p*100+90,
- p*100+105,
- 1);
- }
- }
- cm.close ();
-
- // now distribute these constraints. this should trigger an exception
- bool exception_caught = false;
- deal_II_exceptions::disable_abort_on_exception();
- try
- {
- cm.distribute (vec);
- }
- catch (...)
- {
- exception_caught = true;
- }
- if (n_processes > 1)
- Assert (exception_caught == true, ExcInternalError());
-
- if (myid == 0)
- deallog << "OK" << std::endl;
-}
-
-
-int main(int argc, char *argv[])
-{
- Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, 1);
-
- unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
-
-
- deallog.push(Utilities::int_to_string(myid));
-
- if (myid == 0)
- {
- std::ofstream logfile(output_file_for_mpi("petsc_distribute_02").c_str());
- deallog.attach(logfile);
- deallog.depth_console(0);
- deallog.threshold_double(1.e-10);
-
- test();
- }
- else
- test();
-
-}
+++ /dev/null
-//---------------------------------------------------------------------------
-// $Id$
-// Version: $Name$
-//
-// Copyright (C) 2009, 2010, 2012, 2013 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.
-//
-//---------------------------------------------------------------------------
-
-
-// check ConstraintMatrix.distribute() for a trilinos vector
-//
-// we do this by creating a vector where each processor has 100
-// elements but no ghost elements. then we add constraints on each
-// processor that constrain elements within each processor's local
-// range to ones outside. these have to be added on all
-// processors. then call distribute() and verify that the result is
-// true.
-//
-// we use constraints of the form x_i = x_j with sequentially growing
-// x_j's so that we can verify the correctness analytically
-//
-// compared to the _01 test, here the ConstraintMatrix object acts on an index
-// set that only includes the locally owned vector elements, without any
-// overlap. this means that the owners of a source DoF in a constraint
-// do not know about the constraint if the constrained DoF is owned by
-// another processor. This is not allowed, and should trigger an
-// exception.
-
-
-#include "../tests.h"
-#include <deal.II/base/logstream.h>
-#include <deal.II/lac/trilinos_vector.h>
-#include <deal.II/lac/constraint_matrix.h>
-
-#include <fstream>
-#include <sstream>
-
-
-
-void test()
-{
- const unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
- const unsigned int n_processes = Utilities::MPI::n_mpi_processes (MPI_COMM_WORLD);
-
- // create a vector that consists of elements indexed from 0 to n
- TrilinosWrappers::MPI::Vector vec;
- {
- IndexSet is (100*n_processes);
- is.add_range (100*myid, 100*myid+100);
- vec.reinit (is, MPI_COMM_WORLD);
- }
- Assert (vec.local_size() == 100, ExcInternalError());
- Assert (vec.local_range().first == 100*myid, ExcInternalError());
- Assert (vec.local_range().second == 100*myid+100, ExcInternalError());
- for (unsigned int i=vec.local_range().first; i<vec.local_range().second; ++i)
- vec(i) = i;
- vec.compress(VectorOperation::insert);
-
- // verify correctness so far
- {
- double exact_l1 = 0;
- for (unsigned int i=0; i<vec.size(); ++i)
- exact_l1 += i;
- Assert (vec.l1_norm() == exact_l1, ExcInternalError());
- }
-
-
- // create a ConstraintMatrix with a range that only includes locally owned
- // DoFs
- IndexSet locally_owned_range (vec.size());
- locally_owned_range.add_range (100*myid,
- 100*myid+100);
- ConstraintMatrix cm (locally_owned_range);
-
- // add constraints that constrain an element in the middle of the
- // local range of each processor against an element outside, both in
- // the ghost range before and after
- //
- // note that we tell each processor about all constraints, but most
- // of them will throw away this information since it is not for a
- // DoF inside the locally relevant range
- for (unsigned int p=0; p<n_processes; ++p)
- {
- if ((p != 0) && locally_owned_range.is_element (p*100+10))
- {
- cm.add_line (p*100+10);
- cm.add_entry (p*100+10,
- p*100-25,
- 1);
- }
-
- if ((p != n_processes-1) && locally_owned_range.is_element (p*100+90))
- {
- cm.add_line (p*100+90);
- cm.add_entry (p*100+90,
- p*100+105,
- 1);
- }
- }
- cm.close ();
-
- // now distribute these constraints. this should trigger an exception
- bool exception_caught = false;
- deal_II_exceptions::disable_abort_on_exception();
- try
- {
- cm.distribute (vec);
- }
- catch (...)
- {
- exception_caught = true;
- }
- if (n_processes > 1)
- Assert (exception_caught == true, ExcInternalError());
-
- if (myid == 0)
- deallog << "OK" << std::endl;
-}
-
-
-int main(int argc, char *argv[])
-{
- Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, 1);
-
- unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
-
-
- deallog.push(Utilities::int_to_string(myid));
-
- if (myid == 0)
- {
- std::ofstream logfile(output_file_for_mpi("trilinos_distribute_02").c_str());
- deallog.attach(logfile);
- deallog.depth_console(0);
- deallog.threshold_double(1.e-10);
-
- test();
- }
- else
- test();
-
-}
projects / dealii.git / commitdiff