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examples/hello_c.c

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+/*
+ * Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
+ *                         University Research and Technology
+ *                         Corporation.  All rights reserved.
+ * Copyright (c) 2006      Cisco Systems, Inc.  All rights reserved.
+ *
+ * Sample MPI "hello world" application in C
+ */
+
+#include <stdio.h>
+#include "mpi.h"
+
+int main(int argc, char* argv[])
+{
+    int rank, size, len;
+    /*char version[MPI_MAX_LIBRARY_VERSION_STRING];*/
+
+    MPI_Init(&argc, &argv);
+    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+    MPI_Comm_size(MPI_COMM_WORLD, &size);
+    /*MPI_Get_library_version(version, &len);*/
+    printf("Hello, world, I am %d of %d, (%d)\n",
+           rank, size, len);
+    MPI_Finalize();
+
+    return 0;
+}