From b15c6c1b8e710a110dddf2dd9a02115dc62cfd6a Mon Sep 17 00:00:00 2001
From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Fri, 7 Oct 2011 19:53:40 +0000
Subject: [PATCH] Suppress output from all but processor 0.

git-svn-id: https://svn.dealii.org/trunk@24557 0785d39b-7218-0410-832d-ea1e28bc413d
---
 tests/mpi/p4est_2d_coarse_01.cc | 13 +++++++++----
 tests/mpi/p4est_2d_ghost_01.cc  |  3 ++-
 tests/mpi/p4est_2d_refine_01.cc | 10 ++++++----
 tests/mpi/p4est_2d_simple.cc    | 18 ++++++++++++------
 tests/mpi/p4est_3d_ghost_01.cc  | 15 ++++++++-------
 5 files changed, 37 insertions(+), 22 deletions(-)

diff --git a/tests/mpi/p4est_2d_coarse_01.cc b/tests/mpi/p4est_2d_coarse_01.cc
index b58a3c424e..4b6526ab85 100644
--- a/tests/mpi/p4est_2d_coarse_01.cc
+++ b/tests/mpi/p4est_2d_coarse_01.cc
@@ -54,7 +54,10 @@ void test()
 		  << std::endl;
 	}
 
-      deallog << "subdomainid = " << tr.begin_active()->subdomain_id() << std::endl;
+      if (Utilities::MPI::this_mpi_process (MPI_COMM_WORLD) == 0)
+	deallog << "subdomainid = "
+		<< tr.begin_active()->subdomain_id()
+		<< std::endl;
 
 //      std::vector< unsigned int > cell_subd;
 //      cell_subd.resize(tr.n_active_cells());
@@ -72,9 +75,11 @@ void test()
 		 ExcInternalError() );
 	}
 
-      deallog << "Checksum: "
-	      << tr.get_checksum ()
-	      << std::endl;
+      const unsigned int checksum = tr.get_checksum ();
+      if (Utilities::MPI::this_mpi_process (MPI_COMM_WORLD) == 0)
+	deallog << "Checksum: "
+		<< checksum
+		<< std::endl;
     }
 
 
diff --git a/tests/mpi/p4est_2d_ghost_01.cc b/tests/mpi/p4est_2d_ghost_01.cc
index 543a80d78d..5909b120a4 100644
--- a/tests/mpi/p4est_2d_ghost_01.cc
+++ b/tests/mpi/p4est_2d_ghost_01.cc
@@ -98,8 +98,9 @@ void test()
 
 	}
 
+      const unsigned int checksum = tr.get_checksum ();
       deallog << "Checksum: "
-	      << tr.get_checksum ()
+	      << checksum
 	      << std::endl;
     }
 
diff --git a/tests/mpi/p4est_2d_refine_01.cc b/tests/mpi/p4est_2d_refine_01.cc
index bcc6961ca7..8d4d026168 100644
--- a/tests/mpi/p4est_2d_refine_01.cc
+++ b/tests/mpi/p4est_2d_refine_01.cc
@@ -55,15 +55,17 @@ void test()
 	    deallog << cell_subd[i] << " ";
 	  deallog << std::endl;
 	}
-      
+
       if (myid == 0)
 	{
 	  deallog << "#cells = " << tr.n_global_active_cells() << std::endl;
 	}
 
-      deallog << "Checksum: "
-	      << tr.get_checksum ()
-	      << std::endl;
+      const unsigned int checksum = tr.get_checksum ();
+      if (myid == 0)
+	deallog << "Checksum: "
+		<< checksum
+		<< std::endl;
     }
 
 
diff --git a/tests/mpi/p4est_2d_simple.cc b/tests/mpi/p4est_2d_simple.cc
index f23366836b..af2b357266 100644
--- a/tests/mpi/p4est_2d_simple.cc
+++ b/tests/mpi/p4est_2d_simple.cc
@@ -48,21 +48,27 @@ void test()
       Assert(tr.n_active_cells()==1, ExcInternalError());
 
       if (Utilities::MPI::this_mpi_process (MPI_COMM_WORLD) == 0)
-	deallog << "subdomainid = " << tr.begin_active()->subdomain_id() << std::endl;
+	deallog << "subdomainid = "
+		<< tr.begin_active()->subdomain_id()
+		<< std::endl;
 
       if (myid == numproc-1)
 	{
-	  Assert( tr.begin_active()->subdomain_id()==(unsigned int)myid, ExcInternalError() );
+	  Assert( tr.begin_active()->subdomain_id()==(unsigned int)myid,
+		  ExcInternalError() );
 	}
       else
 	{
-	  Assert( tr.begin_active()->subdomain_id()==types::artificial_subdomain_id, ExcInternalError() );
+	  Assert( tr.begin_active()->subdomain_id()==types::artificial_subdomain_id,
+		  ExcInternalError() );
 	}
 
 
-      deallog << "Checksum: "
-	      << tr.get_checksum ()
-	      << std::endl;
+      const unsigned int checksum = tr.get_checksum ();
+      if (Utilities::MPI::this_mpi_process (MPI_COMM_WORLD) == 0)
+	deallog << "Checksum: "
+		<< checksum
+		<< std::endl;
     }
 
 
diff --git a/tests/mpi/p4est_3d_ghost_01.cc b/tests/mpi/p4est_3d_ghost_01.cc
index a20ae20469..9238bcd8d5 100644
--- a/tests/mpi/p4est_3d_ghost_01.cc
+++ b/tests/mpi/p4est_3d_ghost_01.cc
@@ -40,7 +40,7 @@ void test()
     {
       if (Utilities::MPI::this_mpi_process (MPI_COMM_WORLD) == 0)
 	deallog << "hyper_cube" << std::endl;
-      
+
       parallel::distributed::Triangulation<dim> tr(MPI_COMM_WORLD);
 
       unsigned int rep=2;
@@ -54,7 +54,7 @@ void test()
       GridGenerator::subdivided_hyper_rectangle(tr, repetitions, p, q, false);
 
       tr.refine_global(ref);
-      
+
 
       if (myid==0)
 	{
@@ -98,16 +98,17 @@ void test()
 	    }
 
 
-	  
+
 	}
 
-      deallog << "Checksum: "
-	      << tr.get_checksum ()
-	      << std::endl;
+      const unsigned int checksum = tr.get_checksum ();
       if (myid==0)
 	{
+	  deallog << "Checksum: "
+		  << checksum
+		  << std::endl;
+
 	  std::ofstream file("p4est_3d_ghost_01/1.gpl");
-	  
 	  GridOut().write_gnuplot (tr, file);
 	}
 
-- 
2.39.5