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Dear Troublemaker, I don't know if there is an official plan, but the reality is clear. Every site will retain control over the exact details at that site. Every grid user can decide for himself if he wants to run there. Except for the word grid, it is not very different from BaBar practice. In the case of ATLAS, there are two branches as discussed in our earlier meeting. The ATLAS production team runs validation jobs before that can go. The SLAC ATLAS group checks its releases installations before declaring them to be ready. Back to the original email. BNL can choose to test whatever they want. I was not suggesting we should or should not do that. It was purely informational. Cheers. Charlie -- Charles C. Young M.S. 43, Stanford Linear Accelerator Center P.O. Box 20450 Stanford, CA 94309 [log in to unmask] voice (650) 926 2669 fax (650) 926 2923 > -----Original Message----- > From: Buhrmaster, Gary > Sent: Thursday, February 16, 2006 10:43 AM > To: Young, Charles C.; Halperin, John H. > Cc: security; atlas-sccs-planning-l > Subject: RE: FW: [Usatlas-users-l] dual-core Opteron evaluation server > > Thanks (I noticed the location). But I think John's concerns > may still be valid in the long term. Atlas sites (and the > other experiements, for that matter) will, in the long term, > need to upgrade the OS many many times over the life of the > experiment, and each "grid" site will have their own "required" > levels of software (for functional, security, operational, > staffing reasons). What is the plan (is there a plan?) to > quickly certify each analysis site's level of software? > BaBar has a method that works (more or less) because there > are only a few sites involved with the "heavy lifting" of the > analysis. With the "grid", it seems it will be (essentially) > impossible to dictate a small number of variations, and with > (for example) each university deciding on their own distro (I > hear Stanford has chosen Ubuntu), and their own software > levels, how will the experiment "certify" those sites unique > distinctiveness (and add it to the Atlas "grid")? > > Gary (Troublemaker) Buhrmaster > > > -----Original Message----- > > From: Young, Charles C. [mailto:[log in to unmask]] > > Sent: Thursday, February 16, 2006 10:12 AM > > To: Halperin, John H. > > Cc: security; atlas-sccs-planning-l > > Subject: RE: FW: [Usatlas-users-l] dual-core Opteron > evaluation server > > > > This is a message from BNL about what they are doing that I thought > > people may want to know about, and perhaps to subscribe to their > > mailing list for similar items. >