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| ==Goals== | | === UNDER CONSTRUCTION === |
| *L-Store plugin for root, so that rootio can read (write?) L-Store files | | *This page is for CMS Users interested in using REDDnet - Still under construction, but details will be added soon! |
| *CMS then uses REDDnet as temporary storage for user analysis (Tier 3 and below) | | *Plugins for CMS code have been developed so users can easily access REDDnet: |
| *Other CMS Applications possible, begin with above.
| | **Command line tools for file upload and download into REDDnet: LoRS, Lstore |
| | | **SRM and Phedex: GridFTP plugin |
| ==Current Work in Progress==
| | **CMSSW: Root plugin |
| *Figure out how to get necessary code included in CMSSW
| | *[https://promise.cs.utk.edu/lodn/cgi-bin/lodn_published.cgi?subdir=/cms_reddnet LoDN exnode server] |
| **Talk to Bill Tannenbaum, Phillepe Canal,...
| | *We have a small group of Tier 3 users testing submitting CRAB jobs to OSG sites with data on REDDnet. |
| **include L-Store code in CMSSW distribution so it is built on platforms correctly for use with rest of CMS software.
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| **that way no software for users to download themselves, no changing of configuratino scripts, etc. | |
| **how test and validate before checking in? | |
| **how to check code in? | |
| *Figure out all issues needed to integrate with CMS data distribution model | |
| **phEDeX, TFILE, DBS/DLS,...
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| *Switch Root plugin to use L-Store version of libxio
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| ==Demos==
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| ===Demos at March 2007 OSG Grid Meeting (UC San Diego)===
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| Can use Vladimir's or Dmitri's analysis for all of below.
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| ====Interactive Root====
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| *First upload a file to Depots spread across the WAN, use LORSView to show where and how they go. | |
| *Then read it back in root, show it works.
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| *Mainly an introduction to the issues.
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| ====100 Node ACCRE Run====
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| *each reads its own file from WAN set of depots.
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| *show speed versus local copies of file (data tethered analysis).
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| ====100 CPU Grid Job====
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| *similar to ACCRE Run, each job reads its own file from WAN depots.
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| *demonstrates complete lack of data tether.
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| ====To Do To Get Ready====
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| *Run all of the above many times before actual demo!
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| *Get LORSview upload working
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| *Figure out how to submit 100 CPU Grid Job.
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| *Want to run all 100 ACCRE jobs simultaneously? Need to work with ACCRE on that...
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| ===Get Rick Cavanaugh to run his analysis===
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| *need most of the stuff needed for "Summer 2007 demo" but maybe not all fully in place.
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| *he runs himself.
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| *work with him so he understands full functionality possible.
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| *work with him to develop ideas for better implementing Summer 2007 demo
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| **what docs are needed
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| **best approach to getting users using it
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| **etc.
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| ===Summer 2007 Demo===
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| *A "scratch space" demo for CMS users.
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| *Use deployed REDDnet resources which should become available June 2007
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| *Load REDDnet with "hot" data files, convince a few users to try them out
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| *Must have L-Store code fully integrated with CMS software
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| ==Long Term Needs==
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| *L-store version of libxio
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| *Stable, production REDDnet depot deployment
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| *L-store software fully integrated with CMS software, and being distributed.
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| ==SRM interface==
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| *in principle, this is important for CMS usage.
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| *Need to get new support person on board with this and up to speed.
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