Grid Workload Management (WP 1) Report to INFN-GRID TB
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Grid Workload Management (WP 1) Report to INFN-GRID TB. Massimo Sgaravatto INFN Padova. Meetings. Last meeting: December 4, 2000 CNAF (C. Vistoli, F. Giacomini) Milano (F. Prelz) Padova (M. Sgaravatto) Torino (L. Gaido, S. Lusso, M. Anglano, A. Werbrouck) Pisa (Z. Xie)
Grid Workload Management (WP 1) Report to INFN-GRID TB
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Grid Workload Management (WP 1)Report to INFN-GRID TB Massimo Sgaravatto INFN Padova
Meetings • Last meeting: December 4, 2000 • CNAF (C. Vistoli, F. Giacomini) • Milano (F. Prelz) • Padova (M. Sgaravatto) • Torino (L. Gaido, S. Lusso, M. Anglano, A. Werbrouck) • Pisa (Z. Xie) • Catania (S. Cavalieri, S. Monforte) • Cesnet (L. Matyska, M. Ruda, A. Krenek) • Datamat (F. Pacini, S. Beco) • Next meeting: February 6, 2001 • February 5, 2001: Meeting with Italian computer scientists
Discussed items • Discussion of a first draft of a possible internal architecture of the workload manager, describing also the relevant interactions with external services (provided by other WP) • Franceso G. asked to present this picture in the ATF discussions
Discussed items • First deliverables • PM3: Report on current technologies: M. Anglano + report WP 1 (Globus) • PM6: Architecture • Addressing mainly the first release • PM9: First release • Discussions on functionalities that should/could be implemented
Functionalities foreseen for the 1st release • First release of job description language (JDL) used when the job is submitted, to specify the job characteristics (Datamat) • Prototype: Condor ClassAds • First action: HowTo on the use of ClassAds (to make easier the discussions with applications)
Functionalities foreseen for the 1st release • First version of resource broker, that chooses the computing resources where to submit jobs • Published resource access lists are checked as a first step in the resource matchmaking • The “accessible” resource are then matched with the job requests according to • Availability of the requested input data set • Availability of the appropriate application sandbox • Availability of the requested amount of scratch space • Resource characteristics and status • Cesnet: issues related with access control mechanisms (first prototype: grid-mapfiles based system) • Catania (+Pisa): Broker • First prototype: use of Condor matchmaking library (necessary a translator: GIS attributes ClassAds)
Functionalities foreseen for the 1st release • First version of job submission service • Prototype: Condor-G (submission to Globus resources) • First version of bookkeeping service (Cesnet) • For information related to jobs • First version of logging (Cesnet) • For significant events occurred in the workload management system • First version of command-line user interface (Datamat)
Other info • http://www.infn.it/workload-grid (Torino)