Description:  Returns the shape of an implementation-dependent hardware processor array.

Compaq's PSE clusters are one-dimensional processor arrays whose shape is the number of Parallel Software Environment (PSE) peers.
Class:  Inquiry function; Specific 
Arguments:  None. 
Results:  If a program is compiled for a Compaq PSE cluster, the result is an array of rank one containing the number of processors (peers) available to the program. Otherwise, the result is always a rank-one array of size zero. 

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