====== Makefile ======
<code make makefile>
build:
	mpicc -o helloapp helloapp.c -pthread -Wall
run:
        mpirun -np 8 --oversubscribe helloapp
clean:
	rm -f helloapp
</code>

<note>Remove -pthread if the app does not use pthread.</note>
<note>Remove -Wall to disable warnings</note>
<note>Update nr of processors (8 in this example)</note>
<note>--oversubscribe - allow more processors than physically available</note>