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Updates on LRMS Grid Information Schema

Updates on LRMS Grid Information Schema. Massimo Sgaravatto INFN Padova. Introduction. The IS schema discussed within WP1 discussed during the WP1-WP4 meeting Few changes proposed during the discussion Hypothesis For the PM9 release a resource is a

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Updates on LRMS Grid Information Schema

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  1. Updates on LRMS Grid Information Schema Massimo Sgaravatto INFN Padova

  2. Introduction • The IS schema discussed within WP1 discussed during the WP1-WP4 meeting • Few changes proposed during the discussion • Hypothesis • For the PM9 release a resource is a • Queue of an underlying LRMS, assuming that this queue represents a set of “homogeneous” resource • A “single” node

  3. Schema • ResourceId • GlobusResourceContactString • QueueName • ResourceManagementType • ResourceManagementVersion • GRAMVersion • Architecture • OpSys • PhysicalMemory

  4. Schema • LocalDisk • WP4 will investigate the technical machinery to grant that the advertised "local disk footprint" is actually available to a running job, even in case more than one process is running on a given "worker” node • TotalCPUs • FreeCPUs • NumSMPs • TotalJobs • RunningJobs • IdleJobs • MaxTotalJobs • MaxRunningJobs

  5. Schema • WorstTraversalTime • EstimatedTraversalTime • Scaled value of the last traversal time • Status • RunWindows • Priority • MaximumCPUTime • MaximumWallClockTime • MinSI00 • MaxSI00 • AvgSI00

  6. Schema • Authorization policies • WP1 needs to understand from WP6 whether gridmap file publishing will be OK for Testbed 1 • RunTimeEnvironments • WP4 will negotiate with the Application WPs what kind of information "tag(s)" they would like to use to identify an appropriate Testbed SW installation (e.g.: CMSVersion + CMSRoot, or just a list of RPM names/hashes, etc...) • WP1 will just transmit and match the tag requests through the JDL • AFSAvailable • OutboundIP • InboundIP

  7. Schema • StorageElements • List of SE URIs (format to be determined with interaction with WP5) that are "close enough" to the resource (e.g. on the same LAN) • Other SE information • Needs to be negotiated with WP5 • It is not true that a storage element can be directly accessed using a local protocol (NFS, AFS, …) from a computing resource “attached” to it !!!

  8. Supported LRMS’s • WP4 has to provide the missing information for all the supported LRMS’s • WP4 doesn’t know how to use MDS-2 • WP4 would prefer to update the new, improved Globus “GRAM reporter" rather than rewrite information providers for LRMS’s from scratch

  9. Actions • WP1 will provide an updated information schema, with the actual names of the attributes, identifying data types and formats • GOSP specification ? • WP4 checks with its partners what experience there are with different LRMS’s • WP1 starts the survey of existing information providers in MDS-2 for LSF and PBS (what is already in place ? What is not working ? What is missing) • PBS – Milano – M. Mezzadri • LSF – Padova – Z. Balaton • WP1 will provide a template for information providers or the necessary howto documentation • Checkpoint just before the PTB the 6th of June

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