AMS TIM, CERN Apr 12, 2005

AMS Computing and Ground Centers Status Report

Alexei Klimentov — Alexei.Klimentov@cern.ch

2Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

Outline

AMS Computing and Ground Centers

AMS@CERN - Regional Centers Data Transfer (J.Gong/M.Boschini)

Offline and Analysis Software (J.Alcaraz)

3Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

AMS-02 Ground Support SystemsPayload Operations Control Center (POCC) at CERN (first 2-3 months in Houston)CERN Bldg.892 wing A

“control room”, usual source of commands

receives Health & Status (H&S), monitoring and science data in real-time receives NASA video

voice communication with NASA flight operations

Backup Control Station at JSC (TBD)Monitor Station in MIT

“backup” of “control room” receives Health & Status (H&S) and monitoring data in real-time voice communication with NASA flight operations

Science Operations Center (SOC) at CERN (first 2-3 months in Houston)CERN Bldg.892 wing A

receives the complete copy of ALL datadata processing and science analysisdata archiving and distribution to Universities and Laboratories

Ground Support Computers (GSC) at Marshall Space Flight Center receives data from NASA -> buffer -> retransmit to Science Center

Regional Centers analysis facilities to support geographically close Universities

4Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

5Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

AMS-02 Computing

Computing requirements, architecture and cost estimation http://ams.cern.ch/AMS/Reports/AMSnote-2002_01_02.pdf

SW and technology evaluation– Cluster solution

» AMS / Elonex joint project

» SW evaluation (V.Choutko)

Distributed data analysis issue– ROOT and AMS Root packages

for bulk data analysis in cluster and single node environment

(D.Grandi, N.Sevilla, P.Zuccon)

6Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

AMS-02 Computing. SOC. 1/3 SOC prototype is running

– Analysis, processing and data store facilities– DB and Web services– Data transfer station (INFN Milano)– MC production and Analysis SW– Users support

CERN started Bldg.892 basement refurbishment– SOC prototype will be moved from “even” partition to “odd” partition in

May/June Manpower issue will be discussed LR-24 months (draft is ready) Bulk of computers and disks purchasing LR – 12 months

– LR-24 months SOC prototype (cluster or traditional solution)

7Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

AMS-02 Computing. SOC. 2/3 SW (working prototypes are in production)

– Data transmission (M.Boschin, A.Eline, J.Gong, A.Klimentov,H.Wu)– Data processing framework (V.Choumilov, V.Choutko, A.Klimentov) – Analysis (J.Alcaraz, V,Choutko)– DataBase (A.Klimentov)

Cluster Solution for AMS-02 SOC– HW evaluation

» AMS/Elonex joint project (6 months May- Nov 2005)» V.Choutko, A.Eline, A.Klimentov, SEU

– SW evaluation » System SW - done (V.Choutko)» Application SW for AMS distributed data analysis – in progress

(J.Alcaraz,V.Choutko,D.Grandi, N.Sevilla, P.Zuccon)

8Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

AMS-02 Computing. SOC. 3/3

MC Production (period 2005A and 2005B)– Some minor problems with SW releases

– Stable run for more than a year

– Aachen request for AMS-01 MC production (background study for positron selection from converted bremsstrahlung gammas) - fulfilled

– 18 AMS Universities and labs (more coming)

– Manpower (O.Kounina volunteered to work as MC production manager)

9Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

Year 2005 MC Production MC Production started Jan 15,

2004 Central MC Database Distributed MC Production Central MC storage and

archiving Distributed access (under test)

10Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

MC Production Statistics

URL: pcamss0.cern.ch/mm.html

Particle Million

Events

protons 3264

Helium 233.2

electrons 39.3

deuterons 42.3

positrons 7

Anti-protons 0.8

Carbon 1.8

gammas 60.1

nucleis 41.2

11Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

AMS-02 Computing. GSC@MSFC.

Architecture - defined Operations issues – agreed with MSFC personnel NASA HOSC/POIC – AMS GSC – tbd, manpower tbd Data transmission (MSFC-MIT, MSFC-AMS@CERN)

– Tests conducted in 2003

– More tests beg 2006 (NASA and HEP network upgraded)

– SW is ready and in production for AMS MC data transmission

12Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

AMS-02 Computing. POCC.

Architecture – defined Software

– Commanding (TReK ?)

– Online monitoring

– Data validation and online processing – prototype in production (V.Choutko)

– Voice communication with NASA (tested, G.Carosi)

13Alexei Klimentov. AMS TIM @ CERN. Apr 2005.

Outline

AMS Computing and Ground Centers

AMS@CERN - Regional Centers Data Transfer (J.Gong/M.Boschini)

Offline and Analysis Software (J.Alcaraz)