DISUN Operations Status January 2006
Hardware Deployment
Deployment Goals from the Spring 2005 proposal
Deployment Status as of January 2006
Monte Carlo Production
The DISUN sites at UW and UFL are responsible for all the Monte Carlo Production for USCMS. MC production is a four step process from the physics generation to the detector simulation, the digitization, to the final data summary tape (DST) creation. The digitization step adding "pile-up" events to every collision, and is thus the only step that has significant IO requirements. UFL generates all its MC on OSG, while UW has so far exclusively used GLOW resources. Between June 1st 2005 and January 13th 2006 UFL and UW together produced 40-67% of the total global CMS MC production as detailed below. The MC produced covers the full spectrum of physics for the CMS physics tdr, from backgrounds to standard model Higgs production to Heavy Ion physics.
Operations Related Services
To CMS
Monitoring
As service to the USCMS tier-2 program, disun.org hosts the MonALISA based monitoring display for the USCMS tier-2 sites. This is a copy of the OSG display, restricted to show only the USCMS tier-2 sites. It shows only submissions via the OSG Compute Element. E.g., jobs submitted within GLOW internally are not shown.
CMS software installation & validation
DISUN developed the CMS software installation & validation procedure, and is now providing CMS software maintenance operations to all tier-2 sites. This service is sufficiently streamlined that it is now being extended to tier-3 sites as well. We use the OSG software stack for the submission of installation and validation jobs, and install the software into the CMS specific application areas which are standardized for all OSG sites. More details may be found here.
CMS Data Transfered
CMS Datasets Hosted (1/16/06)
The following is a snapshot on January 16th 2006. It is worth pointing out that UW, and to a lesser extend UFL, host primarily data they produced themselves. Accordingly, the amount of production data transfered is small compared to the amount of data hosted. UCSD ran out of disk space in early January, and is thus no longer hosting any of the data transfered via sc3. Instead, they host two very large background samples for the Higgs to gamma gamma analysis.
Broader Impact
Access to DISUN Computing Resources
The bulk of the CPU power, and a small fraction of the storage is available on an opportunistic basis to a broader user community via the OSG 0.2.1 software stack. All 31 virtual organizations in OSG are supported on DISUN sites, resulting in a user community including engineering, biology, astrophysics, astronomy,
Access to DISUN Human Resources
In addition to DISUN's participation in OSG, DISUN has provided targeted support for LIGO, SDSS, CDF, and GLOW for brief periods of time in order to ease their transition onto the OSG infrastructure in one way or another. In addition, DISUN is involved in preliminary discussions on interoperability between OSG and TeraGrid with a focus on understanding how to run CMS applications transparently on both infrastructures.
