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Datamat Status Report

Datamat Status Report. F. Pacini fabrizio.pacini@datamat.it. Outline. APIs/commands GUI Some Issues. APIs - C++ (1/4). Development of C++ API terminated for the classes in the API spec JobId JobAd Job JobCollection NotificationAd UserJobs UserCredential

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Datamat Status Report

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  1. Datamat Status Report F. Pacini fabrizio.pacini@datamat.it

  2. Outline • APIs/commands • GUI • Some Issues

  3. APIs - C++ (1/4) • Development of C++ API terminated for the classes in the API spec • JobId • JobAd • Job • JobCollection • NotificationAd • UserJobs • UserCredential • Currently collaborating with Francesco G. for the DAG-related classes

  4. APIs - Java (2/4) • Completely rewritten • JobId • Completely rewritten using the Java ClassAd package • JobAd • Use of JNI to wrap RB/LB APIs (development still on going) • Job • JobCollection • NotificationAd • UserJobs • Use of Globus CoG package • UserCredential

  5. APIs/commands (3/4) • Never tested integration with RB/LB • Only unit tests could be performed • stubs for RB/LB • ClassAd C++/Java not always aligned • There are missing Java methods • Not continuously maintained • Will have to change behavior in some methods/commands due to the new architecture. Many details are still missing for the job control commands: • Job cancel • Job output retrieval • Input sandbox transfer

  6. APIs/commands (4/4) • Gradually including new functionalities: • MPI - done • Interactivity – done only for the command-line • Not yet clear how to manage it within the API • DAG – just started • Checkpointing – not yet started • We strongly depend on the other components • Investigating possible wrapping (SWIG) of ClassAd/JobAd for use in the command line UI

  7. GUI • JDL Editor • Development almost complete • Accept/produces JDL/XML job descriptions • Need to be updated with new attributes • Also thinking to a ‘DAG Editor’ • Job Monitoring component • Development begun • Short term/Long term solution agreed with CESNET People • Polling • Notification (from R-GMA?) • Is a Job Submission graphical component needed? • API seems to be sufficient • Will investigate possibility to write a pure Java Network Client (incl. Security) • As an applet seems not to completely solve the security problem raised during Genius demo (proxy)

  8. Some Issues • JDL: • Make [] mandatory • Make JDL case sensitive (as classad is) • Multiple line attributes (\ no more needed) • Slightly change comments formats (//, #) • Support for JDL file containing multiple job descriptions • Put OutBoundIP automatically in job requirements if staging in/out is needed (it is already the case for interactive jobs) • Put Active automatically in job requirements • Impacts from GLUE • Bypass (grid_console) • Separate component (third party) • Part of UI

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