Friday Nov 16, 2007

TACC Photo

Latest image of the 62k+ core, 504 PetaFlop TACC Ranger system:

(For the humor handicapped, that's a joke.)

Saturday Nov 03, 2007

Announcing Grid Engine 6.1 Advance Reservation Snapshot 3

The latest version of the 6.1 Advance Reservation snapshot is now available for download. Snapshot 3 has had the u2 changes merged in, plus it includes some new features from the maintrunk: some scheduler improvements, some protocol optimizations, and a new flatfile spooling parser. Because of the new flatfile spooling parser, upgrading from a previous 6.1 or 6.1AR release using flatfile spooling will be a little trickier than usual. The reason for the new flatfile spooling parser is to consolidate spooling libraries. In 5.3, there was one flatfile spooling library, and it used all hand-written spooling code. With 6.0, we developed a new spooling library based on Lex, but we were gun shy on replacing the qmaster's spooling library with this new piece of code. Instead, we only replaced qconf's spooling code, resulting in there being two flatfile spooling libraries. Now that the no-longer-new spooling library has had time to burn in, we're confident enough to make the switch. With 6.2, we will go back to having only one flatfile spooling library.

Perhaps most importantly, the 6.1 Advance Reservation snapshot 3 contains the latest advance reservation updates. If you're interested in advance reservation, e.g. if you work at TACC, check it out.

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