[ Home | Contents | Search | Post | Reply | Next | Previous | Up ]
From: John.Harvey@cern.ch
Date: 6/20/97
Time: 5:24:55 PM
Remote Name: 137.138.117.88
Remote User: John Harvey
LHCb Technical Proposal ------------------------ At its first meeting the Editorial Board set out a framework for the LHCb Technical proposal. This framework is appended below. Andrei and I have made a first attempt at a breakdown of the Computing section of the Data Handling chapter.
We would be very please to receive comments on this draft. Please send them via e-mail to myself by Thursday June 26th. You will see that I have to provide a first draft to the Editorial Board by June 30th. There will also be an opportunity at the next computing meeting next Tuesday for some discussion on this, if required.
Many thanks in advance,
John
Computing Section of Technical Proposal Draft 1 : A. Tsaregorodtsev and J.Harvey
1. Computing Model - dataflow model: definition of datasets and processing stages - strategy on calibration, simulation, reconstruction, event viewing, analysis - volumes of data produced at each stage - CPU needs in Level 3, reconstruction, simulation,analysis - storage, distribution and management of data between CERN and institutes
2. Software Requirements - Size of software in Mlines - Manpower needs in man years - support for collaborative computing - control of software quality
3. Approach to Software development - strategy for organising software development in projects - importance of architectural frameworks - use of re-usable components : packages, databases, application frameworks - specific real-time and distributed processing issues: data driven
4. Software Development Issues - new technologies : OO paradigm - Software Engineering - software process and software development environment - information systems : WWW, videoconferencing, database - use of commercial software (CASE, Objectivity, …) - common projects (GEANT4, LHC++, RD45, SDE….)
5. Project Planning - project organisation and team structure - training needs - define major milestones, resources both financial and manpower - phases: current and future software, planning transitions between phases
Summary of First Meeting of Editorial Board -------------------------------------------- 1. Time scale for the production of the LHCb Technical Proposal a) rough definition of the contents 11 June 1997 b) detail definition of the contents end June c) identifying all the responsible persons by mid July d) first preliminary draft 1st November 1997 e) first draft for circulation middle December 1997 f) second draft for the approval by the collaboration end January 1998 g) final draft for printing middle February 1998
2. We agreed to accept contributions in either of the following formats a) MS Word. Use only the inbuilt styles (Heading1, Heading2, Heading3 etc.). This is the easiest system to use and permits very easy conversion to HTML. b) LaTeX, using the standard article style. We need to accept articles in LaTeX as this is still the most commonly used in the physics
3. Images can be accepted in almost any format, preferably gif, jpg or postscript.
4. The structure of the TP is shown below. The member of the editorial board dealing with each chapter is given in brackets. The recommended number of pages is also indicated, the aim being to control the total number of pages to a reasonable amount. The convenors are of course responsible for the detailed breakdown and contents of their sections.
a) Overview (Tatsuya Nakada) 10 pages i) Physics overview (motivation, summary of performance) ii) Detector overview iii) Data Handling (Trigger, DAQ base line design and hardware, Computing)
b) Detector (Dave Websdale) i) Beam Pipe (machine related things) 1 page ii) Magnet 1 page iii) Microvertex 8 pages iv) Main tracking 10 pages v) RICH 10 pages vi) Calorimeter 10 pages vii) Muon system 5 pages
c) Data Handling (John Harvey) i) Trigger 15 pages ii) DAQ 5 pages iii) Computing 5 pages
d) Experimental area (Hans-Jurgen Hilke) 8 pages i) Layout and services (power, cooling) ii) Safety iii) Radiation (steady states, accidents, induced radiation)
e) Physics performance (Tatsuya Nakada) 20 pages
f) Project planning (Hans-Jurgen Hilke) 5 pages i) Organization ii) Responsabilities (table with by detector: institute, activity) iii) Schedule (containing installation) iv) Cost v) Resources vi) Test beam (infrastructure requirements)