From 77d248676a2046d8b310b6b2dca82e3f6a72e105 Mon Sep 17 00:00:00 2001
From: Vanessa Vichi <v.vichi3@A3-dott7.polo2.sid.unipi.it>
Date: Wed, 17 Apr 2024 17:46:55 +0200
Subject: [PATCH] Test of MPI_Comm_rank/size/functions

---
 Makefile   |  6 ++++--
 example2.c | 12 ++++++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 example2.c

diff --git a/Makefile b/Makefile
index 3856935..8946058 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,9 @@
 MPICC = mpicc
 CFLAGS += -g
-all: example
+all: example example2
 example: example.c
 	$(MPICC) $(CFLAGS) $(LDFLAGS) $? $(LDLIBS) -o $@
+example2: example2.c
+	$(MPICC) $(CFLAGS) $(LDFLAGS) $? $(LDLIBS) -o $@
 clean:
-	rm -f example
+	rm -f example example2
diff --git a/example2.c b/example2.c
new file mode 100644
index 0000000..0fb0e79
--- /dev/null
+++ b/example2.c
@@ -0,0 +1,12 @@
+#include"mpi.h"
+#include<stdio.h>
+
+int main(int argc, char **argv){
+int rank, size;
+MPI_Init( &argc, &argv);
+MPI_Comm_rank( MPI_COMM_WORLD, &rank);
+MPI_Comm_size( MPI_COMM_WORLD, &size);
+printf("Hello world! I'm process %d of %d\n", rank, size);
+MPI_Finalize();
+return 0;
+}