# Presentation: 885812

## Computing at Fermilab

**Stephen Wolbers**
**US CMS Software and Computing Review**
**October 23, 2000**

## Outline

**Computing Division at Fermilab**
**Computing Projects and Experimental Support**
**Computing Facilities/Space**

## Introduction to CD

**Fermilab Computing is driven by and drives the Physics Program at the laboratory**
**More Computing ********More Data Written**
**More Data Written => More Computing**
**Physics demands both increased data and increased computing**

## Personnel

**CD has about 250 full-time employees**
**The approximate distribution of employees is:**
**140 Computer Professionals**
**40 Physicists**
**20 Engineers**
**20 Technicians**
**10 support/budget **
**15 Computer Operator/Helpdesk**

## CD Works on Projects and Provides Support

**Physicists and Computer Professionals work together on projects and in the support of the experiments and projects.**
**Physicists are members of 8 departments and the Division Office.**
**This mix has been beneficial and CD plans to continue this collaboration wherever possible.**

## Projects and Support

**Some Project Examples**
**Run II Joint Projects (long list)**
**SAM**
**ENSTORE**
**Farm Batch System**
**...**
**DA systems (SDSS, DART, Run II)**
**Readout systems (SVXII)**
**Pixel Readout (BTeV)**

## Experiments Supported

**Fixed-Target Experiments **
**1996-97 (many analyzing and publishing)**
**1999 (KTeV, HyperCP and Charmonium)**
**miniBooNE (data in late 2001)**
**MINOS (2003)**
**Run II**
**Run IIa in 2001**
**Run IIb in 2004**

## Experiments

**BTeV **
**Astrophysics Experiments**
**SDSS**
**Auger**
**CDMS**
**Test Beams**
**Electronics for Experiments **

## Other Support

**Email**
**Database support**
**AFS servers**
**Computer Security**
**Electronics repair**
**www**
**Mass storage**
**Farms**
**Conference support**
**Operations and helpdesk**
**Networking LAN and WAN**
**Engineering support for readout**
**C++ and ROOT support **
**Plant support for buildings**

## Computing Facilities 

**Large Tape Robots**
**PC Farms**
**CDF Central Computing**
**D0 Central Computing**
**SDSS Central Computing**
**KTeV Central Computing**
**FNALU**
**AFS Storage**
**Networks**
**Mail Systems (IMAP, POP, gateway)**
**Space!**

## IBM 3494 Robot

## CDF Robot

## D0 robot

## STK Silos

## R&D Robot

## PC Farms

## PC Farms

## PC Farms

## PC Farms

## PC Farms

## CDF Analysis System

## D0 Central Analysis Computing

## SDSS Computing

## KTeV Computing System

## FNALU

## Servers

## Space – New Muon Lab

## Space inside New Muon Lab

## Space Inside New Muon Lab

## RunII joint project organization

- R2JOP
- Steering Committee

- Directorate

- D0 Collaboration

- CDF Collaboration

- Task
- Coordinators

- Run II
- Committee

- Run II Computing
- Project Office

- Von Rüden
- Committee

- Basic Infrastructure

- Mass Storage &
- Data Access

- Reconstruction
- Systems

- Physics Analysis
- Support

**Fermilab**
**Class**
**Library**

**Configuration**
**Management**

**Support**
**Databases**

**Simulation**

**Storage**
**Management**

**Serial Media**
**Working**
**Group**

**MSS**
**Hardware**

**Reconstruction**
**farm hardware**

**Networking**
**hardware**

**Production**
**Management**

**Reconstruction**
**input pipeline**

**Physics analysis**
**hardware**

**Physics Analysis**** Software**

**Visualization**

- Reporting

- Advisory

- Oversight

**Data **
**Access**

## FNAL Site Network

**The site’s LAN is being upgraded to gigabit ethernet:**
- Run-II computing resources to use gigabit ethernet connections;
- Legacy FDDI & routed LANs moved to the periphery of the network.

## MREN supports Chicago NAP users & potentially STARTAP users.

- ESnet is the default service provider, including international access;
- MREN supports Chicago NAP users & potentially STARTAP users.

- Current WAN support:
- 1 FDDI supporting both OC3s, a potential bottleneck;
- OK now, based on traffic level;
- But WAN traffic is growing...
- Future WAN support:
- 1 or more OC12s (622 Mbit);
- Gigabit ethernet into site LAN;
- Upgrade expected in FY ‘00.

- FNAL WAN Connectivity: