There are numerous causes for your application to not be able to run on your cluster. We certainly need more information regarding this issue (what software are you using - MPI implementation, compiler, libraries, etc; are you using an interconnect - IB, Quadrics, Myrinet, etc). Also information on the error or failure you're getting would be helpful.
If you believe this might be a software issue, I would suggest that you submit a bug report at the Intel Premier Support site at http://premier.intel.com.
Technical Consulting Engineer
Intel Cluster Tools