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Summary from WP 1 Parallel Section

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Imperial College (UI) Relations with the other WP's ... Finalize the information transfer infrastructure to enable applications to ... – PowerPoint PPT presentation

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Title: Summary from WP 1 Parallel Section


1
Summary from WP 1 Parallel Section
  • Massimo Sgaravatto
  • INFN Padova

2
WP1 PM9 release
  • WP1 very focused on the WP1 PM9 release
  • Functionalities foreseen for the WP1 PM9 release
    already presented to the applications in a
    bilateral WP1 WP8TWG meeting ( 1 month ago)
    and here in Oxford
  • Discussions on status of implementation of the
    various WP1 PM9 components (and also a fruitful
    WP1 implementers hands on meeting)
  • User Interface (UI)
  • Resource Broker (RB)
  • Job Submission Service (JSS)
  • Information Index (II)
  • Logging and Bookkeeping Services (LB)

3
WP1 PM9 components
  • User Interface
  • Command-line for job management operations (job
    submission, job removal, job status monitoring,
    etc)
  • Job Description Language (JDL) used when the job
    is submitted, to specify its characteristics and
    requirements
  • Condor ClassAds based
  • Resource Broker (RB)
  • Responsible to choose the best CEs where to
    submit jobs
  • Matchmaking between requirements specified in the
    JDL expression and available resources (published
    in the MDS Replica Catalog)
  • As optimization for the PM9 release jobs will
    be submitted close to data
  • No data transfers will be triggered

4
WP1 PM9 components
  • Job Submission Service
  • Wrapper of Condor-G for the PM9 release
  • On top of Globus GRAM (to implement a reliable
    job submission service)
  • Information Index
  • Used by the RB as first filter in the resource
    discovery process
  • GIIS with some customisations at PM9

5
WP1 PM9 components
  • Bookkeeping
  • Short term (volatile) data about currently active
    jobs
  • Job definition
  • Job status and related info
  • Logging
  • Long term (persistent) info about jobs and
    workload management system
  • Used for debugging and post-mortem analysis of
    job runs

6
WP1 test environment
  • WP1 test environment for early integration tests
  • CNAF (RB JSS LB Server II)
  • Prague-CESNET (PBS Condor, MDS 2.1 alpha)
  • Milano (PBS, MDS 2.1 alpha)
  • Padova (LSF Condor, MDS 2.1 alpha)
  • Imperial College (UI)

7
Relations with the other WPs
  • Relations with the other WPs identified, already
    presented to the other WPs, and discussed in
    some bilateral meetings before Oxford and here
  • Some more discussions will be needed in the next
    future to better define some details
  • MDS schema and information providers
  • WP1 submitted its inputs on the MDS schema
    specification for the PM9 release
  • Agreed with WP4 and WP5 (responsible to implement
    the correspondent information providers)
  • Finalize the information transfer infrastructure
    to enable applications to access the SE contents
    via local filesystem calls at PM9

8
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9
Other items
  • Grid Accounting
  • Economy-based model
  • Paper with first ideas and proposals will be
    circulated soon (after more discussion within
    WP1)
  • First internal review of D1.2 (architecture
    document)
  • Hopefully submitted to reviewers by July 18th
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