My first MPI code

Makefile

@@ -0,0 +1,7 @@
+MPICC = mpicc #The wrapper for the compiler
+CFLAGS += -g  #Useful for debug symbols
+all: helloworld
+helloworld: helloworld.c
+	$(MPICC) $(CFLAGS) $(LDFLAGS) $? $(LDLIBS) -o $@
+clean:
+	rm -f helloworld

helloworld.c

@@ -0,0 +1,10 @@
+#include"mpi.h"
+#include<stdio.h>
+
+int main(int argc, 
+char **argv){
+  MPI_Init( &argc, &argv);
+  printf("Hello, world!\n");
+  MPI_Finalize();
+  return 0;
+}