GCOMS Meeting, 7th July 2007, Daresbury Laboratory

Agenda

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• Demonstration of Styx Grid Services grid middleware (Dan Bretherton, ReSC)
• Comparison of grid middleware solutions and assessment of suitability for GCOMS
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Actions

• Dan Bretherton: Get G-Rex working and set up test POLCOMS grid services
• Dan Bretherton: Put grid middleware information on wiki
  

Next meeting

Before end of year

Presentations

G-Rex (Grid Remote eXecution), the successor to Styx Grid Services.

• SGS-status.odp: G-Rex and SGS presentation (Open Document format)

• SGS-status.ppt: G-Rex and SGS presentation (M$ Office format)

Table of comparison showing several grid middleware systems that may be suitable for GCOMS. Weighted scores between 1 and 5 for different features are assigned to each system. In cases where the performance of a middleware system is not known with respect to a particular feature, the highest score is given for that feature. The scores assigned to Styx Grid Services (SGS) also apply to G-Rex. Links to information about the work-flow systems evaluated in the table can be found in the "Useful Links" section below.

• WorkFlowComparison.ods: Evaluation of grid middleware for GCOMS work-flows (Open Document format)
  

• WorkFlowComparison.xls: Evaluation of grid middleware for GCOMS work-flows (M$ Office format)
  

Useful Links

Styx Grid Services Web site: http://www.resc.rdg.ac.uk/jstyx/sgs/index.html

Information about the Open Middleware Infrastructure Institute (OMII) grid software discussed at the meeting (GridSAM and BPEL) can be found on the OMII-UK Web site: http://www.omii.ac.uk/projects/index.jsp

Directed Acyclic Graphs (DAGs) and the Condor DAGMan work-flow system are explained in the Condor User Manual: http://www.cs.wisc.edu/condor/manual/v6.6/2_11DAGMan_Applications.html

The P-Grade grid work-flow system: http://www.lpds.sztaki.hu/pgportal/

Pegasus grid work-flow system: http://pegasus.isi.edu/

-- DanBretherton - 24 Oct 2007