I read @ https://www.open-mpi.org/faq/?category=sge
that for OpenMPI Parallel Environments there's a special consideration for Son of Grid Engine: '"qsort_args" is necessary with the Son of Grid Engine distribution, version 8.1.1 and later, and probably only applicable to it. For very old versions of SGE, omit "accounting_summary" too.' Does this requirement still hold true for OpenMPI 1.8.7? Because the webpage above only refers to much older versions of OpenMPI. I also want to thank Ralph for all his help in debugging the manifold problems w/our mixed bag cluster. -Bill Lane IMPORTANT WARNING: This message is intended for the use of the person or entity to which it is addressed and may contain information that is privileged and confidential, the disclosure of which is governed by applicable law. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this information is strictly prohibited. Thank you for your cooperation.