The session quickly covered the Spec with very few minor changes and/or
comments.
Then we discussed the future of BES. The following are the notes that were
taken about the discussion.
Future BES additions, extensions,etc.
What information model should be used to represent the container
Consistent way of exposing types of JSDL Application can support.
How do we expose the information so a scheduler can chose the container?
Query for Activities based on attributes both static and dynamic
When JSDL adds different Application types BES needs to handle this. For
example an mpi jobs may change the state model or how many activities are
returned from a createActivityFromJSDL.
Can we make a generic state model that can handle all new application types
that JSDL could have.
Does the state model need to change for reservation? How is the activity
bound to the reservation?
Advanced Execution Service
Reservation System (WS-Agreement) maybe add makeReservationFromJSDL
Scheduling constraint policies on BES container
Example is stop accepting activities for a period of time or when the load
is at something etc.
Outside groups need to do
Activity Management Interface should be defined
Management interface for OGSA services should be defined.
WSDM ?
Workflow Execution Service?
Resource Utilization of the execution element that the container represents.
QOS and capacity
* Andrew Grimshaw raised the need of an interop fest. GridSAM (William Lee)
and Mark Morgan (UoV) agreed to provide public endpoints. Mark Morgan has
'ogsa_run' .NET client for testing. GridSAM will provide an all java client.
* Steven N. mentioned Chris Smith will bring up a query on the need of a
'Holding' state in the overall status. This will be raised in the public
comments.
* Steven N.: The states in BES are aligned with those in CIM. SAGA is
looking at the BES state diagram.
* William L. & Andreas S.: Can the client request any state changes? Yes. If
the state change cannot be satisfied or illegal, the appropriate negative
response would be returned.
* Activity interface is out of scope. A BES profile document will mandate
the JSDL application type to be allowed and the activity interface to be
made available.
* Steve L. commented that WS-I rendering can use WSRF BaseFault. Darren P.
replied that for political reason the WSI rendering should be free from any
WSRF artifacts.
* Mark M. suggested we should have the ability to express advance
reservation, scheduling constraints, utilization.
* William L. suggested we should have the ability to express the JSDL
optionalities a BES service supports. For example, POSIXApplication, file
staging bindings.
* NAREGI is using BES with extension in JSDL to handle advance reservation.
* Stephen P. raised the question of whether it makes sense to expose
resource utilization in the information model. Donal expresses concern in
whether this is in scope for a 'BASIC' execution service. Stephen P. thinks
this might raise false expectation.
* Steve McGough suggested there's a need for querying job based on
attributes.
* Ali A. commented whether the generic state model can support other JSDL
application types (e.g. Web Services). Can we abstract it further?
Darren Pulsipher
Darren Pulsipher
Owner
Email: <mailto:darren@pulsipher.org> darren(a)pulsipher.org
IM: darren_pulsipher (Yahoo)
Professional Profile <http://www.linkedin.com/pub/0/8a8/115>
Pulsipher Site <http://www.pulsipher.org>
Ovoca
<http://maps.google.com/maps?q=&hl=en>
See who we know in common <https://www.linkedin.com/e/wwk/2212001/>
Want a signature <https://www.linkedin.com/e/sig/2212001/> like this?
Dear colleagues,
[My apologies for cross-posting]
Just a quick announcement of the JSDL-WG Workshop at GGF16.
Date: Wed. 15th Feb.
Time: 08:30 - 12:00
Room: Mycenae
The talks are in the schedule below.
We all look forward to seeing you there and to your feedback and
contributions towards our ongoing work in the JSDL-WG.
Kind regards,
Ali (on behalf of the JSDL-WG)
JSDL-WG: https://forge.gridforum.org/projects/jsdl-wg/
JSDL-Spec: http://www.gridforum.org/documents/GFD.56.pdf
--
---------------------------------------------------- |epcc| -
Ali Anjomshoaa
EPCC, University of Edinburgh
James Clerk Maxwell Building
Mayfield Road E-mail: ali(a)epcc.ed.ac.uk
Edinburgh, EH9 3JZ Phone: + 44 (0) 131 650 5818
United Kingdom Fax: + 44 (0) 131 650 6555
-------------------------------------------------------------
---- GGF16, JSDL Workshop Schedule ----
08:30 - Welcome and Introductions
08:35 - JSDL Tutorial
Andreas Savva (Fujitsu Laboratories Ltd, Japan)
Steve McGough (LeSC, Imperial College London, UK)
William Lee (Lesc, Imperial College London, UK)
09:20 - GridSAM presentation
William Lee, (LeSC, Imperial College London, UK)
09:40 - NAREGI presentation
Kazushige Saga (National Institute of Informatics, Japan)
10:00 - *** BREAK ***
10:30 - HPCEuropa presentation
Ariel Oleksiak (Poznan Supercomputing and Networking Centre,
Poland)
10:50 - Japan Business Grid presentation
Andreas Savva (Fujitsu Laboratories Ltd, Japan)
11:10 - UniGrids presentation
Michel Drescher (Fujitsu Laboratories of Europe, UK)
11:30 - Platform Computing presentation
Christopher Smith (Platform Computing, USA)
11:50 - Conclusions and closing remarks
12:00 - END
----------
