From 704a29e1a3accbeb491a424bc8e02cb8a54dd3b2 Mon Sep 17 00:00:00 2001
From: raphael couturier <couturie@extinction>
Date: Sat, 16 Aug 2014 08:30:39 +0200
Subject: [PATCH 1/1] modif exemple

---
 code/ex15.c |  4 ++++
 code/ex49.c | 16 +++++++++++-----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/code/ex15.c b/code/ex15.c
index 7dc050b..f62763f 100644
--- a/code/ex15.c
+++ b/code/ex15.c
@@ -480,6 +480,10 @@ int main(int argc,char **args)
   ierr = PetscOptionsGetInt(NULL,"-m",&m,NULL);CHKERRQ(ierr);
   ierr = PetscOptionsGetInt(NULL,"-n",&n,NULL);CHKERRQ(ierr);
 
+  PetscMPIInt size;
+  MPI_Comm_size(PETSC_COMM_WORLD,&size);
+  PetscPrintf(PETSC_COMM_WORLD,"Number of processors = %d\n",size);
+
   /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
          Compute the matrix and right-hand-side vector that define
          the linear system, Ax = b.
diff --git a/code/ex49.c b/code/ex49.c
index b875dd3..76f2067 100644
--- a/code/ex49.c
+++ b/code/ex49.c
@@ -1420,11 +1420,11 @@ static PetscErrorCode solve_elasticity_2d(PetscInt mx,PetscInt my)
   ierr = DMLocalToGlobalBegin(da_prop,l_properties,ADD_VALUES,properties);CHKERRQ(ierr);
   ierr = DMLocalToGlobalEnd(da_prop,l_properties,ADD_VALUES,properties);CHKERRQ(ierr);
 
-  ierr = PetscOptionsGetBool(NULL,"-no_view",&no_view,NULL);CHKERRQ(ierr);
+  /*  ierr = PetscOptionsGetBool(NULL,"-no_view",&no_view,NULL);CHKERRQ(ierr);
   if (!no_view) {
     ierr = DMDAViewCoefficientsGnuplot2d(da_prop,properties,"Coeffcients for elasticity eqn.","properties");CHKERRQ(ierr);
     ierr = DMDACoordViewGnuplot2d(elas_da,"mesh");CHKERRQ(ierr);
-  }
+   }*/
 
   /* Generate a matrix with the correct non-zero pattern of type AIJ. This will work in parallel and serial */
   ierr = DMSetMatType(elas_da,MATAIJ);CHKERRQ(ierr);
@@ -1465,11 +1465,11 @@ static PetscErrorCode solve_elasticity_2d(PetscInt mx,PetscInt my)
 
    PetscScalar T1,T2;
     ierr = KSPSetTolerances(ksp_E, 1e-9, 1e-9, PETSC_DEFAULT, 50000000); CHKERRQ(ierr);
-    T1 = MPI_Wtime();
+    /*    T1 = MPI_Wtime();
 
     ierr = KSPSolve(ksp_E,ff,XX);CHKERRQ(ierr);
     T2 = MPI_Wtime();
-    
+     */
     Mat A;
     Vec sol;
     PetscScalar norm;
@@ -1538,7 +1538,7 @@ static PetscErrorCode solve_elasticity_2d(PetscInt mx,PetscInt my)
     ierr = KSPSolve(ksp_E,f,X);CHKERRQ(ierr);
   }
 
-  if (!no_view) {ierr = DMDAViewGnuplot2d(elas_da,X,"Displacement solution for elasticity eqn.","X");CHKERRQ(ierr);}
+  //  if (!no_view) {ierr = DMDAViewGnuplot2d(elas_da,X,"Displacement solution for elasticity eqn.","X");CHKERRQ(ierr);}
   ierr = KSPDestroy(&ksp_E);CHKERRQ(ierr);
 
   ierr = VecDestroy(&X);CHKERRQ(ierr);
@@ -1566,6 +1566,12 @@ int main(int argc,char **args)
   ierr = PetscOptionsGetInt(NULL,"-mx",&mx,NULL);CHKERRQ(ierr);
   ierr = PetscOptionsGetInt(NULL,"-my",&my,NULL);CHKERRQ(ierr);
 
+
+  PetscMPIInt size;
+  MPI_Comm_size(PETSC_COMM_WORLD,&size);
+  PetscPrintf(PETSC_COMM_WORLD,"Number of processors = %d\n",size);
+
+
   ierr = solve_elasticity_2d(mx,my);CHKERRQ(ierr);
 
   ierr = PetscFinalize();CHKERRQ(ierr);
-- 
2.39.5