Solution to Question 3
Three or four nodes should be sufficient to run this small test.
For example, you could ask for three nodes in pool zero:
setenv MP_PROCS 3
setenv MP_RMPOOL 0
Then run the program as before:
If you see this error message:
ERROR: 0031-124 Less than 3 nodes available from pool 0
and you are running on the production SP system, try choosing
pool 1 instead of 0 and ask for fewer than 3 nodes.
If you see these error messages:
ERROR: 0031-725 Failed to exec program a.out; errno = 2
ERROR: 0031-619 execvp error: No such file or directory
then your current working directory, where your "hello" executable is stored,
is not in the search path for executable files.
Be careful to type "poe ./hello" as shown above;
the "./" identifies the current working directory as the path to be searched.