Hi; My email was focused on both job description and resource discovery. I need both to implement the HPC profile specification. Marvin. -----Original Message----- From: owner-ogsa-bes-wg@ggf.org [mailto:owner-ogsa-bes-wg@ggf.org] On Behalf Of Karl Czajkowski Sent: Wednesday, June 07, 2006 2:04 AM To: Donal K. Fellows Cc: Peter Lane; ogsa-bes-wg@ggf.org; Ed Lassettre Subject: Re: [ogsa-bes-wg] Questions and potential changes to BES, as seen from HPC Profile point-of-view Yes, GRAM users often (almost always) provide their own executable, either because they are CS-inclined, or because the "user" for GRAM is actually another piece of middleware that provides the more abstract interface you describe. BTW, this point of Peter's is what I thought everyone was talking about regarding heterogeneous resource descriptions, and that is what I was trying to address in this thread w.r.t. JSDL constraint models. It seems one could read Marvin's original question as being about resource discovery, but since he mentioned JSDL, I just assumed we were all talking about constraints in the job description. karl -- Karl Czajkowski karlcz@univa.com