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CHEP 2000 Session F: Data Analysis:Technology and Presentation

CHEP 2000 Session F: Data Analysis:Technology and Presentation. Convenors: Francois Etienne - IN2P3, Atlas, Ruth Pordes, FNAL Thank You to all the Speakers for Providing me with their Transparencies to use. 29 Oral presentations; 1 Poster. Outline. Quick Review of Topics/Titles

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CHEP 2000 Session F: Data Analysis:Technology and Presentation

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  1. CHEP 2000 Session F: Data Analysis:Technology and Presentation Convenors: Francois Etienne - IN2P3, Atlas, Ruth Pordes, FNAL Thank You to all the Speakers for Providing me with their Transparencies to use.29 Oral presentations; 1 Poster

  2. Outline • Quick Review of Topics/Titles • More Detail for Each Category • Summary

  3. Numerical Library Software - 2 papers • Development of Numerical Library Software in Java – KEK – Initial Work • Scientific Toolkit for Java – Phenix – Really an Analysis Framework • (poster paper not in this session on COLT - Cern/IT) • All in Java

  4. Electronic Document Management systems - 4 papers from 2 systems • Java-based User Interfaces for CERN's Engineering Data Management System • Integrated Information Management for TESLA • Asset Management for Cavities and Computers at DESY • Experience with Document Management at DESY

  5. Singletons: • Bringing Mathematical Formatting to the Web - An Overview of the Technology and SLAC's Experience • Multi-threaded, Discrete Event, Simulation of Distributed Computing Systems – CMS • CORBA Scripting in HEP and Beyond. • ATLAS DAQ back-end Software • Integrated toolset, mainly Open Source • Second use of this will be an interesting test. • Defining deliverables of “pre-design” phase. • How to move to an Open Source development environment for critical piece of Experiment architecture?

  6. Event Displays - 3 talks • Atlantis an Event Display for ATLAS: When displaying 6000 hits recorded by only 7 layers, can we recognize tracks? • WIRED - World-Wide Web Interactive Remote Event Display • HepRep: a Generic Interface Definition for HEP Event Display Representables

  7. General Analysis Packages/Frameworks • Java Analysis Studio • ROOT at RUN II • Open Scientist • A Comparison of Data Analysis Packages (Root and IDL)

  8. Experiment Analysis Packages • A Graphics Sampler for the D0 Experiment • The CMS IGUANA Project • Object Oriented Data Analysis in the DELPHI Experiment • Distributed BELLE Analysis Framework • New Data Analysis Environment in H1

  9. General Analysis Components • Abstract Interfaces for Data Analysis – AIDA – Cern/IT • A Histogramming package in Java - KEK • Lightweight Histogram Interface Layer – from NERSC/LBL

  10. Software Process and Configuration Management - 5 talks all from Europe.. • An Evaluation of Tools for Static Checking of C++ Code • Impact of Software Review and Inspection • C++ Code Analysis: an Open Architecture for the Verification of Coding Rules • CMT: a Software Configuration Management Tool • Use of a Configuration Management Tool in LHCb Software

  11. What there was Not • Software Development Methodologies and Case Tools. • 3-D and Virtual Reality. Overall Impression • Continuation of directions and initiatives from last Chep.

  12. F19 MathML Interface for Abstracts in SLAC Spires • Situation today (finally): • method for defining a mathematical expression in terms of its presentation and semantics • MathML is a standardized instance of XML • Used “IBM TechExplorer Hypermedia Browser” • A Web browser plug-in • Dynamically formats and displays documents coded with TEX/LATEX and/or MathML • Beta version applied to existing Spires TeX files works. • Try it and feed back comments ...

  13. F19 - Tool for Simulation of Complex Distributed Data Handling Systems - • Technology – in house developed JAVA toolkit. • Process driven not event driven architecture • Full presentation and easy editing of parameters • encourage many different models and users • Immediate publication of results on the web • Enable physicists to read, analyse and feedback. • Alternative architectures and designs can be commented with quantitative and analytic input • Technology is ready to be tested for “Simulator Friendliness” … • Volunteers to model the existing Babar and Run II systems would indeed be useful.

  14. F359, F65, F66, - DESY Integrated Information Management • Reminded us of the importance of need for and time required to • Peoples Use and Access Patterns change after they have experience with a working system • Current and Future Business Processes significantly affect design • Users expect latest Technology (currently video, mobile computing etc) • Demonstrated Success of collaborative development of vendor tool for HEP needs

  15. Current Tuovi Status & Statistic • 20 projects with: - 6 GB data vault- 2400 project nodes- 18600 files- 3300 registrated user

  16. Cern EDMS Extensions • Import/Export Interface - define an exchange data format in XML. • Conversion of metadata to and from various formats e.g. Excel, Html, Databases, Text Processors etc. • in use by several LHC groups: • LHC Baseline and ABS • ATLAS: Import/Export of ABS Structures • CMS: ECAL ABS • ALICE: Documents and Files check-in • Documents Management in the LHC Design office (in progress)

  17. Histogramming Packages • Histogrammer in JAVA - Successful interfacing of Java and C++ objects for in a simple Histogrammer application • Lightweight C++ Histogram Interface - Break between Statistical Data Gathering, from analysis and visualization tasks. Define Standard API and Support Object Structures. • How does it relate to transient Cern/HTL implementation

  18. Analysis and Event Display Toolkits and Interfaces • WIRED • HepRep • AIDA • Java Analysis Studio • Scientific Toolkit for Java • Open Scientist • ROOT • IDL - through comparison with ROOT

  19. Wired • Rewrite since Last CHEP • In Use by CHORUS, BaBar, DELPHI etc. • Lacks a Scripting Language. • BaBar Use shows up Need to Think before Defining what Data gets Transported between User Client and Data Server – don’t want a “Packet per Point”

  20. HepRep • Experience with Wired at BaBar led to need to layer interface between Client and Display so as to • reduce granularity in getting remote information • increase ability to for Client/Users to easily add objects and views • HepRep defines a general API for serving Representables, not Physics Objects • “Serving Representables keeps the detailed reconstruction code, swimmers and detector models on the server side where they belong. • Spatial information is assembled and shipped in an efficient manner, avoiding the overhead of too many individual method calls.”

  21. General Comments • Transport the Physics Analysis Code to the Data - JAS – No Answer Yet on Whether this will Work Well. • WIRED and JAS both Talking about Scripting Languages – no decision yet. • Once Package in Use and Responding to User Use Needs, More Core Development More Difficult • Integration with C++ Analysis Algorithms and Data Adaptors Not Here Yet.

  22. AIDA • Part of Next LHC++ Analysis Toolkit – the Start. • HepVis ’99 established Collaboration for Definition of Abstract Interface for Data Analysis • Interface Architected to Support Scripting and GUI Equivalently. • Goal of Adaptors/Interfaces to HepTuple, JAS, Openscientist, Root etc.

  23. JAS • Extensions since last CHEP: • JEdit Editor Bean • Using Swing JEditorPane JAS now supports HTML display • XML support - JASHist bean directly supports reading/writing XML • Servlet Support • Continued use in BaBar Online and LCD Simulations • Packaged and made Available in OpenSource Paradigm - Contributions starting e.g. 3D Classes from Fermilab.

  24. Scientific Toolkit for Java • Explained was a Separate Project to “Learn Technology”. • Use of JavaHelp • Based onJava 2D (JDK 1.2) • Generic Swing Console for those Interpretive Languages not supported by Swing. • Anticipate Discussing Collaboration with / Contributions to JAS. • Starting New Development Allowed use of Latest Generation Technologies

  25. Open Scientist • Work Continuing for Experiments – LHCb, Virgo, Auger etc. • Concept of “Hub” as Integration Layer. What is boundary/layering between Frameworks and Utilities - Do we need More Concepts Here? • Worklist includes Integration of CINT and Extensions to Free Open Inventor Implementation.

  26. ROOT - Run II Perspective • Progress since Run II Adoption of ROOT with Caveats. • Priorities from 1999 Workshop been in Large Part Addressed – Robustness, CINT Extensions, Pre-compilation of user classes. • Tutorials and Education Popular with Run II Users. • To meet Local Needs currently Building 23 Flavors. • Collaboration Works with Technical Commitment • Second ROOT Workshop last week at Cern resulted in New Worklist - now posted – main extension Self Describing Data format.

  27. Comparison of ROOT and IDL: • IDL command language • Concatenate Sets of Files of ntuples - chain command. • Read in and Use Variables from an “ntuple”File - Local Extension. • Event Selection Cuts on Several Variables • Plot - Static or “Liveplot”. • Large ntuple problem addressed by “mapped files”. • Needs test drive for “large scale analysis”.

  28. Experiment Specific Event Displays and Analysis

  29. Mature Experiments Retooling Technology for Analysis – Delphi and H1 reported • Issues include: • Maintenance – Technical and Resources; • Support of Multiple Generations of Technology. • OO, ROOT, C++ - Speed and Usability Benefits • Encourage New Collaborators • Allow and Provide for Curation of the Data

  30. Atlas Event Display - Atlantis • Applying Hans Drevermanns Algorithms to New/Future Experiment • “V-plot” • Z finder • Hit filtering • Plan Recode from Fortran to Java.

  31. Experiment Event Displays – D0 • Suite of Different Tools based on Legacy and New Packages. • New Tools based on Open Inventor. Will Evolve. • Finding very useful for algorithm development and starting for analysis of processed Monte Carlo data

  32. D Graphics Sampler Rest of D0 software D Graphics HEPVis Xi Graphics Exceed 3D Open Inventor Mesa OpenGL

  33. CMS - IGUANA • On the way to being a Fully Featured Data Presentation and Manipulation Framework. • Will be used in CMS Simulation and Test Beam Analysis this Year. • Pragmatic Approach to getting Prototypes and Early Production Releases. • Based on Open Toolkits and Open Inventor. • “Sharing experience may be more important than sharing code”- aligned with LHC++ strategy.

  34. 6 (b) HEPInventor & OpenInventor, Motif • 6(c) SciPlot • (Xt / Qt) 6(a) HepExplorer & IRIS Explorer IGUANA Objectivity browsing IGUANA Objectivity tag analyser (tag is similar to ntuple) 6(d) Qwt & Qt Preferred Solutions IGUANA Prototypes: Objectivity Browsers and Persistent Histograms and Tags Plotters

  35. BELLE – BASF Analysis Framework • Currently supports Single SMP Parallel Processing of Events for Users. • dBASF Extension being Designed to Support Network Connected Clusters of PCs. Package of Daemons for • Job Management • Data I/O • Resource Management • Monitoring. • Resource Managers Dynamically Reconfigures – Increase, Decrease - Number of Computing Servers Running Jobs.

  36. HEP Configuration Management Tools • Report from 2 users of CMT – Build and Release System. • Poster papers on SRT Rewrite, NT Extensions • From Marjorie’s Plenary Talk: “Everyone now using them, can’t we use the same one…”

  37. jcmt Package areas browser Packages & versions Free action onto the package editor Requirements editor Configuration monitor monitor

  38. F63 - C++ Code Rules and Checking • C++ Coding Standard – 180 Rules for Naming, Coding and Style of Varying Severity for Each Experiment. • Evaluation of Commercial tools for Code Rule Checking. Tested on Geant4 and Atlas Libraries. • Out of 5 tools considered 2 Meet the Basic Needs – about 75% of total: CodeWizard and QA C++. • Now Traditional Questions on: “What does it take to Decide?” “Will IT/CD Support It?”

  39. F361 - C++ Code Rules and Checking - Alice • Development of Code Analysis Tools - Parser, Formatter, Checker • Limitations in Checking Complete C++ syntax e.g. Templates, Namespace • Successfully used on ALICE code

  40. F331 - Atlas Software Review and Inspections • Movement in HEP from Fagan Inspections (Fermilab SDSS/DART/Run II) to Gilb Inspection Method • Bodes Well that this is Part of Formal Development of Proposed OpenSource Project..

  41. F119 - Applications using CORBA Script – continuation of work reported at Chep ‘98. • Interpreted Scripting Language which can interact with CORBA objects through IIOP and has dynamic access to any CORBA object. • OMG Standard • Interface Definitions Stored in Repository • Applications in Babar Data Handling System

  42. Summary – TechnologyJava, XML, CORBA • JAVA • Mainstream for New Presentation Applications. • Not Mainstream for Data Analysis and Reconstruction. • Work Not yet Done to Integrate with C++ Algorithm Modules and Frameworks. • Work only just Beginning on HENP Utility Libraries.

  43. Summary – Physics Analysis Packages • Not much development using Commercial Analysis Tools. • ROOT most Generally Used; Extensions still being requested to meet Experiment Long Term Needs. Open Source Collaboration without Open Source licence? • JAS, OpenScientist, WIRED, progressing steadily. • Question still Open as to How or Whether any of the Existing Analysis Technologies will Successfully meet Needs of >500 Physicists doing Analysis of Babar and Run II over the next 10 Years.

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