1 / 8

Fermilab Offline Computing Farms

Fermilab Offline Computing Farms. Stephen Wolbers Fermilab May 22, 2001. Farms at Fermilab. Farms have a long history at Fermilab, providing large CPU at low cost.

halee-flores
Download Presentation

Fermilab Offline Computing Farms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fermilab Offline Computing Farms Stephen Wolbers Fermilab May 22, 2001 Stephen Wolbers, FNAL Clusters Workshop

  2. Farms at Fermilab • Farms have a long history at Fermilab, providing large CPU at low cost. • I’ll discuss the reconstruction farms, used for event processing and for Monte Carlo simulation and for large-scale calculations. • The farms are all dual-Pentiums running Linux, logically divided into CDF, D0, CMS and Other. • Batch system is Fermilab-written FBSNG, a product which is the result of many years of evolution (ACP,cps,FBS,FBSNG). Stephen Wolbers, FNAL Clusters Workshop

  3. Characteristics • The farms are designed for small numbers of large jobs and a small number of expert users. • The goal is to get physics results as quickly as possible from the experiments and to provide very large cost-effective CPU to projects. • There are 314 PC’s in the farms and 124 more are on order: • CDF 88 nodes 4998 SpecInt95 (+64) • D0 100 nodes 5702 SpecInt95 • CMS 40 nodes 2856 SpecInt95 (+20) • Other 86 nodes 3019 SpecInt95 (+40) Stephen Wolbers, FNAL Clusters Workshop

  4. Run II CDF PC Farm Stephen Wolbers, FNAL Clusters Workshop

  5. OLD Stephen Wolbers, FNAL Clusters Workshop

  6. NEW Stephen Wolbers, FNAL Clusters Workshop

  7. Data Volume per experiment per year (in units of 109 bytes) – CPU needs increase at least as quickly. Data Volume doubles every 2.4 years Stephen Wolbers, FNAL Clusters Workshop

  8. Future • The offline farms do their job well. They are inexpensive, run well, don’t require large amounts of system or software support. • I expect the current model to continue to hold, with the machines continuing to increase in speed and also having better connectivity. • Other models of PC cluster computing will take hold, but with different use patterns and management issues. • Disk Farms, Analysis Farms, Server Farms • Could we in 5 years see only PC’s in our big data centers? Stephen Wolbers, FNAL Clusters Workshop

More Related