F.Pacini - Budapest – 5 Sept, 2002 - n° 1

Datamat Status Report

F. Pacini

fabrizio.pacini@datamat.it

F.Pacini - Budapest – 5 Sept, 2002 - n° 2

Outline

APIs/commands

GUI

Some Issues

F.Pacini - Budapest – 5 Sept, 2002 - n° 3

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

APIs - C++ (1/4)

F.Pacini - Budapest – 5 Sept, 2002 - n° 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

APIs - Java (2/4)

F.Pacini - Budapest – 5 Sept, 2002 - n° 5

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

APIs/commands (3/4)

F.Pacini - Budapest – 5 Sept, 2002 - n° 6

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

APIs/commands (4/4)

F.Pacini - Budapest – 5 Sept, 2002 - n° 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)

F.Pacini - Budapest – 5 Sept, 2002 - n° 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