Big Blue Gene Week on JUBL
(22 - 28 May 2006)


The Blue Gene/L system JUBL in Jülich is a capability machine with 16k processors which demonstrates its power best when highly scalable programs run on thousands of processors simultaneously. This system allows to tackle Grand Challenge problems on a level which was out of reach before. To enable computational scientists from the different research fields to scale up their programs to really large processor numbers aiming at a jump in performance and insight, we offer a dedicated time for simulation runs using between 4096 and 16384 processors. Giving priority to highly scalable applications also emphasizes our efforts to strengthen capability computing as recommended by the different evaluation committees of the John von Neumann Institute for Computing.

Procedure

Candidates for the Big Blue Gene Week are applications which run efficiently on JUBL on at least 2048 processors. Furthermore these applications should show a scaling behavior which promises a good efficiency on multiple racks.

To ensure a dense packaging of multi-rack applications the reservations can only be performed by the system administrators. Reservation arrangements have to be done in cooperation with the user support (contact see below). Time limit and number of reservations depend on the total demand for multi-rack requests. The reservations are scheduled by the standard reservation system and can be monitored by llview/llstat.

Deadline for reservation requests is: 17 May 2006, 16.00h

Tests and Preparations

In order to prepare the multi-rack runs we offer a small test time of 4 hours in total on Thursday, 18 May 2006. Tests within this time have to be arranged between users and user support (contact see below). It is of course possible to perform multi-rack reservations at any time with the standard reservation system.

Results

See ZAM aktuell: "Big Blue Gene Week" auf Jubl: Nachlese (in german)

Contact

User Support and Coordination: N.Attig@fz-juelich.de
W.Frings@fz-juelich.de		 +49-2461-61-4416
System Administration: J.Docter@fz-juelich.de
M.Stephan@fz-juelich.de		 +49-2461-61-1447
last change 22.06.2006 | Wolfgang Frings | Print