From ae78f3341e68b5dfbc4c5f7dfe38867ca5b57294 Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@gmail.com>
Date: Wed, 12 Oct 2022 22:16:47 -0400
Subject: [PATCH] Check result of MPI_Query_thread in if statements

---
 EXAMPLE/pddrive.c       | 13 ++++---------
 EXAMPLE/pddrive3d.c     | 13 ++++---------
 EXAMPLE/pddrive3d1.c    | 13 ++++---------
 EXAMPLE/pddrive3d2.c    | 13 ++++---------
 EXAMPLE/pddrive3d3.c    | 13 ++++---------
 EXAMPLE/pddrive_spawn.c | 31 +++++++++++++------------------
 EXAMPLE/psdrive.c       | 31 +++++++++++++------------------
 EXAMPLE/psdrive3d.c     | 13 ++++---------
 EXAMPLE/psdrive3d1.c    | 13 ++++---------
 EXAMPLE/psdrive3d2.c    | 13 ++++---------
 EXAMPLE/psdrive3d3.c    | 13 ++++---------
 EXAMPLE/pzdrive.c       | 31 +++++++++++++------------------
 EXAMPLE/pzdrive3d.c     | 13 ++++---------
 EXAMPLE/pzdrive3d1.c    | 13 ++++---------
 EXAMPLE/pzdrive3d2.c    | 13 ++++---------
 EXAMPLE/pzdrive3d3.c    | 13 ++++---------
 EXAMPLE/pzdrive_spawn.c | 31 +++++++++++++------------------
 17 files changed, 104 insertions(+), 189 deletions(-)

diff --git a/EXAMPLE/pddrive.c b/EXAMPLE/pddrive.c
index 2b4b4381..d66ec15e 100755
--- a/EXAMPLE/pddrive.c
+++ b/EXAMPLE/pddrive.c
@@ -200,23 +200,18 @@ int main(int argc, char *argv[])
     
     if(grid.iam==0){
 	MPI_Query_thread(&omp_mpi_level);
-        switch (omp_mpi_level) {
-          case MPI_THREAD_SINGLE:
+        if (omp_mpi_level == MPI_THREAD_SINGLE) {
 		printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 		fflush(stdout);
-	        break;
-          case MPI_THREAD_FUNNELED:
+        } else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 		printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 		fflush(stdout);
-	        break;
-          case MPI_THREAD_SERIALIZED:
+        } else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 		printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 		fflush(stdout);
-	        break;
-          case MPI_THREAD_MULTIPLE:
+        } else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 		printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 		fflush(stdout);
-	        break;
         }
     }
 	
diff --git a/EXAMPLE/pddrive3d.c b/EXAMPLE/pddrive3d.c
index fa7fb1af..02f8fbad 100755
--- a/EXAMPLE/pddrive3d.c
+++ b/EXAMPLE/pddrive3d.c
@@ -267,23 +267,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/pddrive3d1.c b/EXAMPLE/pddrive3d1.c
index 2bf6edb4..dbfb300c 100755
--- a/EXAMPLE/pddrive3d1.c
+++ b/EXAMPLE/pddrive3d1.c
@@ -200,23 +200,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
 	fflush(stdout);
     }
diff --git a/EXAMPLE/pddrive3d2.c b/EXAMPLE/pddrive3d2.c
index c534889e..cd271335 100755
--- a/EXAMPLE/pddrive3d2.c
+++ b/EXAMPLE/pddrive3d2.c
@@ -207,23 +207,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/pddrive3d3.c b/EXAMPLE/pddrive3d3.c
index d8b2477c..dd30b56a 100755
--- a/EXAMPLE/pddrive3d3.c
+++ b/EXAMPLE/pddrive3d3.c
@@ -204,23 +204,18 @@ main (int argc, char *argv[])
 
     if (grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/pddrive_spawn.c b/EXAMPLE/pddrive_spawn.c
index e8215555..464e046e 100755
--- a/EXAMPLE/pddrive_spawn.c
+++ b/EXAMPLE/pddrive_spawn.c
@@ -129,24 +129,19 @@ int main(int argc, char *argv[])
 	
     if(grid.iam==0){
 	MPI_Query_thread(&omp_mpi_level);
-    switch (omp_mpi_level) {
-      case MPI_THREAD_SINGLE:
-		printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
-		fflush(stdout);
-	break;
-      case MPI_THREAD_FUNNELED:
-		printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
-		fflush(stdout);
-	break;
-      case MPI_THREAD_SERIALIZED:
-		printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
-		fflush(stdout);
-	break;
-      case MPI_THREAD_MULTIPLE:
-		printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
-		fflush(stdout);
-	break;
-    }
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
+	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
+	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
+	    fflush(stdout);
+	}
 	}
 	
     /* Bail out if I do not belong in the grid. */
diff --git a/EXAMPLE/psdrive.c b/EXAMPLE/psdrive.c
index 47be729f..8acc8b00 100644
--- a/EXAMPLE/psdrive.c
+++ b/EXAMPLE/psdrive.c
@@ -200,24 +200,19 @@ int main(int argc, char *argv[])
     
     if(grid.iam==0){
 	MPI_Query_thread(&omp_mpi_level);
-        switch (omp_mpi_level) {
-          case MPI_THREAD_SINGLE:
-		printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
-		fflush(stdout);
-	        break;
-          case MPI_THREAD_FUNNELED:
-		printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
-		fflush(stdout);
-	        break;
-          case MPI_THREAD_SERIALIZED:
-		printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
-		fflush(stdout);
-	        break;
-          case MPI_THREAD_MULTIPLE:
-		printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
-		fflush(stdout);
-	        break;
-        }
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
+	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
+	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
+	    fflush(stdout);
+	}
     }
 	
     /* Bail out if I do not belong in the grid. */
diff --git a/EXAMPLE/psdrive3d.c b/EXAMPLE/psdrive3d.c
index 91997525..6abd05c2 100644
--- a/EXAMPLE/psdrive3d.c
+++ b/EXAMPLE/psdrive3d.c
@@ -267,23 +267,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/psdrive3d1.c b/EXAMPLE/psdrive3d1.c
index 07627d01..4038743a 100755
--- a/EXAMPLE/psdrive3d1.c
+++ b/EXAMPLE/psdrive3d1.c
@@ -200,23 +200,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
 	fflush(stdout);
     }
diff --git a/EXAMPLE/psdrive3d2.c b/EXAMPLE/psdrive3d2.c
index a720dec3..fd8e8d8c 100755
--- a/EXAMPLE/psdrive3d2.c
+++ b/EXAMPLE/psdrive3d2.c
@@ -207,23 +207,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/psdrive3d3.c b/EXAMPLE/psdrive3d3.c
index ce740388..1b833ead 100755
--- a/EXAMPLE/psdrive3d3.c
+++ b/EXAMPLE/psdrive3d3.c
@@ -204,23 +204,18 @@ main (int argc, char *argv[])
 
     if (grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/pzdrive.c b/EXAMPLE/pzdrive.c
index 789472a4..c5e4ec67 100755
--- a/EXAMPLE/pzdrive.c
+++ b/EXAMPLE/pzdrive.c
@@ -199,24 +199,19 @@ int main(int argc, char *argv[])
     
     if(grid.iam==0){
 	MPI_Query_thread(&omp_mpi_level);
-        switch (omp_mpi_level) {
-          case MPI_THREAD_SINGLE:
-		printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
-		fflush(stdout);
-	        break;
-          case MPI_THREAD_FUNNELED:
-		printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
-		fflush(stdout);
-	        break;
-          case MPI_THREAD_SERIALIZED:
-		printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
-		fflush(stdout);
-	        break;
-          case MPI_THREAD_MULTIPLE:
-		printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
-		fflush(stdout);
-	        break;
-        }
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
+	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
+	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
+	    fflush(stdout);
+	}
     }
 	
     /* Bail out if I do not belong in the grid. */
diff --git a/EXAMPLE/pzdrive3d.c b/EXAMPLE/pzdrive3d.c
index 9d20fc0f..ce1906a0 100755
--- a/EXAMPLE/pzdrive3d.c
+++ b/EXAMPLE/pzdrive3d.c
@@ -267,23 +267,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/pzdrive3d1.c b/EXAMPLE/pzdrive3d1.c
index b5d147ed..ee40a694 100755
--- a/EXAMPLE/pzdrive3d1.c
+++ b/EXAMPLE/pzdrive3d1.c
@@ -200,23 +200,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
 	fflush(stdout);
     }
diff --git a/EXAMPLE/pzdrive3d2.c b/EXAMPLE/pzdrive3d2.c
index 5799b647..9c79145c 100755
--- a/EXAMPLE/pzdrive3d2.c
+++ b/EXAMPLE/pzdrive3d2.c
@@ -207,23 +207,18 @@ main (int argc, char *argv[])
 
     if(grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/pzdrive3d3.c b/EXAMPLE/pzdrive3d3.c
index e3addd78..7e64ee31 100755
--- a/EXAMPLE/pzdrive3d3.c
+++ b/EXAMPLE/pzdrive3d3.c
@@ -204,23 +204,18 @@ main (int argc, char *argv[])
 
     if (grid.iam==0) {
 	MPI_Query_thread(&omp_mpi_level);
-	switch (omp_mpi_level) {
-	case MPI_THREAD_SINGLE:
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_FUNNELED:
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
 	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_SERIALIZED:
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
 	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
 	    fflush(stdout);
-	    break;
-	case MPI_THREAD_MULTIPLE:
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
 	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
 	    fflush(stdout);
-	    break;
 	}
         fflush(stdout);
     }
diff --git a/EXAMPLE/pzdrive_spawn.c b/EXAMPLE/pzdrive_spawn.c
index ecf0d272..a0670b71 100755
--- a/EXAMPLE/pzdrive_spawn.c
+++ b/EXAMPLE/pzdrive_spawn.c
@@ -129,24 +129,19 @@ int main(int argc, char *argv[])
 	
     if(grid.iam==0){
 	MPI_Query_thread(&omp_mpi_level);
-    switch (omp_mpi_level) {
-      case MPI_THREAD_SINGLE:
-		printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
-		fflush(stdout);
-	break;
-      case MPI_THREAD_FUNNELED:
-		printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
-		fflush(stdout);
-	break;
-      case MPI_THREAD_SERIALIZED:
-		printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
-		fflush(stdout);
-	break;
-      case MPI_THREAD_MULTIPLE:
-		printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
-		fflush(stdout);
-	break;
-    }
+	if (omp_mpi_level == MPI_THREAD_SINGLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_SINGLE\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_FUNNELED) {
+	    printf("MPI_Query_thread with MPI_THREAD_FUNNELED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_SERIALIZED) {
+	    printf("MPI_Query_thread with MPI_THREAD_SERIALIZED\n");
+	    fflush(stdout);
+	} else if (omp_mpi_level == MPI_THREAD_MULTIPLE) {
+	    printf("MPI_Query_thread with MPI_THREAD_MULTIPLE\n");
+	    fflush(stdout);
+	}
 	}
 	
     /* Bail out if I do not belong in the grid. */