Hi, In line with Marvin's comments, I think we had this discussion on vector versus singleton at the last F2F. We decided that HPC would have to address both aspects but approach the elemental case first and other situations would be done as extensions. Right? (I am sure we had this discussion since I remember distinctly raising the notion that singleton could also be a "vector of length 0". No doubt, a simple observation. But with implications in the architecture/profile. This led to the discussion (not resolved) as to what is elemental as per Marvin's summary below) Ravi -----Original Message----- From: owner-ogsa-hpcp-wg@ggf.org [mailto:owner-ogsa-hpcp-wg@ggf.org] On Behalf Of Marvin Theimer Sent: Thursday, August 24, 2006 4:25 AM To: Ian Foster; Steven Newhouse; humphrey@cs.virginia.edu Cc: ogsa-hpcp-wg@ggf.org Subject: RE: [ogsa-hpcp-wg] Minutes for OGSA HPC Profile telecon (Aug 18 2006) Hi; I totally agree that they're important. However, in keeping with having as simple an HPC Profile base case as possible, the HPC Profile will restrict its base case to only allowing singleton vectors. Whether we want to define the BES base case as non-vector operations and then immediately define a vector extension or whether we want to define the base case as vector operations with the restriction being put in the HPC Profile specification is something still to be determined. Marvin. ________________________________ From: owner-ogsa-hpcp-wg@ggf.org On Behalf Of Ian Foster Sent: Monday, August 21, 2006 12:43 AM To: Steven Newhouse; humphrey@cs.virginia.edu Cc: ogsa-hpcp-wg@ggf.org Subject: Re: [ogsa-hpcp-wg] Minutes for OGSA HPC Profile telecon (Aug 18 2006) I am also concerned about this. We've never had vector operations in Globus, but Chris Smith argued eloquently for their importance in the early stages of BES, and so I became convinced that we need them. Ian. At 09:34 PM 8/20/2006 +0100, Steven Newhouse wrote: AI-HPCP-0818c: Marvin Theimer will add first draft of section 4 to HPC Basic Profile that restricts BES operations to singletons Could you expand on this... having the BES interface support operations on vectors of activities has been fairly important. Is this is what you are planning to remove? Is this a profile restriction or an edit on the main BES document? Steven -- ---------------------------------------------------------------- Dr Steven Newhouse Mob:+44(0)7920489420 Tel:+44(0)23 80598789 Director, Open Middleware Infrastructure Institute-UK (OMII-UK) c/o Suite 6005, Faraday Building (B21), Highfield Campus, Southampton University, Highfield, Southampton, SO17 1BJ, UK _______________________________________________________________ Ian Foster -- Weblog: http://ianfoster.typepad.com<http://ianfoster.typepad.com/> Computation Institute: www.ci.uchicago.edu<http://www.ci.uchicago.edu/> & www.ci.anl.gov<http://www.ci.anl.gov/> Argonne: MCS/221, 9700 S. Cass Ave, Argonne, IL 60439 Chicago: Rm 405, 5640 S. Ellis Ave, Chicago, IL 60637 Tel: +1 630 252 4619 --- Globus Alliance: www.globus.org<http://www.globus.org/>