Dear all In the context of the Compute Resource Management Interfaces (CRM) initiative (the same mentioned by Oxana), the Job Description Language (JDL) used by the CREAM (Computing Resource Execution AND Management) service has been compared with JSDL. The CREAM JDL is a subset of the EGEE WMS JDL, that is the language used to specify characteristics and requirements for jobs submitted to the EGEE Workload Management System. This JDL is a high-level, user-oriented language based con Condor Classads for describing jobs and complex requests (aggregates of jobs). It is a fully extensible language, hence the user is allowed to use whatever attribute for the description of a request. However, only a certain set of attributes, referred as "supported attributes", is taken into account. The result of this evaluation is available at: http://www.pd.infn.it/grid/jra1/CREAMJDL-vs-JSDL.pdf A presentation summarizing these results is also available at: http://www.pd.infn.it/~sgaravat/Grid/CREAMJDL-vs-JSDL-EGEE3.pdf http://www.pd.infn.it/~sgaravat/Grid/CREAMJDL-vs-JSDL-EGEE3.ppt In short we found that for many functionality for which specific CREAM JDL attributes exist there aren't "default" JSDL directives that could be used. For most of them this is not surprising since they refer to features/functionality very specific to our architecture. In this case I guess JSDL extensions could be used. On the other hand (and here I agree with Oxana) there are some issues that in my opinion could/should probably be addressed by the default JSDL directives. In particular (and, again, I agree with Oxana): - the specification of workflows (in our case DAGs, job collections, parametric jobs) - the support for matchmaking, i.e. allowing specifying requirements (and preferences) on the target resource where the job has to be executed. Thanks for your attention Cheers, Massimo \\\|/// \\ ~ ~ // (/ @ @ /) -------oOOo-(_)-oOOo---------------------------------- Massimo Sgaravatto INFN Sezione di Padova Via Marzolo, 8 35131 Padova - Italy Tel: ++39 0498277047 Fax: ++39 0498277102 oooO E-mail: massimo.sgaravatto@pd.infn.it ( ) Oooo Home page: http://www.pd.infn.it/~sgaravat --------\ (----( )---------------------------------- \_) ) / (_/