Can I-TASSER 2.1 runs on multiple processors in one computing node?

Hi
I set the I-TASSER in parallel mode, and it only use one processor in each node. In our cluster, there are four processor in one node, and only one is used. In each of the 5 steps of I-TASSER, can it runs on multiple processors in one node? If it does, how can I set it? Thank you very much.

Jingran