Specifies the maximum number of nodes requested for a parallel job, regardless of the number of processors contained in the node.
This keyword is equivalent to the maximum value you specify on the new node keyword. In any new job command files you create for non-PVM jobs, you should use the node keyword to request nodes/processors. The max_processors keyword should be used by existing job command files and new PVM job command files. Note that if you specify in a job command file both the max_processors keyword and the node keyword, the job is not submitted.
The syntax is:
max_processors = number
For example:
max_processors = 6