Re: [Pgi-wg] TELCON Numbers and Reminder: 4 pm CET TODAY: GESDiscussions
All, I have read the document Moreno provided very carefully and have a large number of comments that I will share when we discuss the document morning/afternoon. First, thank you Moreno for putting "on paper". My high level comments are: 1) I that I feel it is important to clearly separate requirements from mechanism in the first discussion. There many ways to solve a problem. 2) That minimalism in composable porttypes leads to cleaner design. In particular, it might make sense to define a simple ActivityEndpoint porttype that provides information for example on uri's to access the execution directory for staging, etc. To quote another European "Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." Antoine de Saint-Exupery 3) The differences from the current BES are pretty minor, e.g., vectorization of create and change state. As an aside, our experience with the current BES specification is that passing back the list of activities "contained" by a BES resource is awkward at best, and a performance inhibitor at worst. A direct call to get the instances makes much more sense. They way we have done this -- that does not require any new specification is via the use of the RNS porttype to "list" activities. Andrew Ps. Moreno, it might be useful if you used a screen sharing software such as glance while going through the document.
-----Original Message----- From: pgi-wg-bounces@ogf.org [mailto:pgi-wg-bounces@ogf.org] On Behalf Of Morris Riedel Sent: Wednesday, April 08, 2009 7:40 AM To: pgi-wg@ogf.org Subject: [Pgi-wg] TELCON Numbers and Reminder: 4 pm CET TODAY: GESDiscussions
Dear PGI team,
Moreno will chair a telcon about the PGI GES Strawman document today!
2009-04-08 - 4 pm CET
Call-in details as follow: via Skype call +9900827049931906 (free of charge) ordinary phone numbers (local rates) with the 9931906 conference number:
Austria 0820 401 15470 Belgium 0703 57 134 France 0826 109 071 Germany +49 (0) 180 500 9527 Switzerland 0848 560 397
Proposed agenda:
(1) GES Strawman document
(2) AOB
Material can be found here:
http://forge.gridforum.org/sf/docman/do/listDocuments/projects.pgi- wg/docman .root.input_documents.execution_service
# Strawman Document # Initial supportive slides about some strawman content
Your co-chair, Morris
------------------------------------------------------------ Morris Riedel SW - Engineer Distributed Systems and Grid Computing Division Jülich Supercomputing Centre (JSC) Forschungszentrum Juelich Wilhelm-Johnen-Str. 1 D - 52425 Juelich Germany
Email: m.riedel@fz-juelich.de Info: http://www.fz-juelich.de/jsc/JSCPeople/riedel Phone: +49 2461 61 - 3651 Fax: +49 2461 61 - 6656
Skype: MorrisRiedel
"We work to better ourselves, and the rest of humanity"
Sitz der Gesellschaft: Jülich Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498 Vorsitzende des Aufsichtsrats: MinDirig'in Bärbel Brumme-Bothe Vorstand: Prof. Dr. Achim Bachem (Vorsitzender), Dr. Ulrich Krafft (stellv. Vorsitzender)
All, More high level comments in advance of our telecom in ten minutes. 1) What staging protocols will be mandatory in your profile. For example, in the HPC-BP-FSE the mandatory protocols were http, scp, and ftp. Presumably you are going to add gridftp and srb? Has everyone looked at the HPC-BP-FSE? 2) Client versus resource (BES) staging seems to be a major issue. I believe this is best handled by the "pre-running" state described in Moreno's document and by a porttype on the activity to interact with it w.r.t. staging. 3) What specific GLUE2 elements will be required 4) Optional JSDL is contrary to my understanding of JSDL (I could be wrong, have not kept up with 2.0). If things are optional what does that mean? Does that mean they should be used in selecting one resource versus another? If so, what is the objective function? A
-----Original Message----- From: pgi-wg-bounces@ogf.org [mailto:pgi-wg-bounces@ogf.org] On Behalf Of Andrew Grimshaw Sent: Wednesday, April 08, 2009 8:14 AM To: 'Morris Riedel'; pgi-wg@ogf.org Cc: 'Mark Morgan' Subject: Re: [Pgi-wg] TELCON Numbers and Reminder: 4 pm CET TODAY:GESDiscussions
All, I have read the document Moreno provided very carefully and have a large number of comments that I will share when we discuss the document morning/afternoon. First, thank you Moreno for putting "on paper". My high level comments are:
1) I that I feel it is important to clearly separate requirements from mechanism in the first discussion. There many ways to solve a problem.
2) That minimalism in composable porttypes leads to cleaner design. In particular, it might make sense to define a simple ActivityEndpoint porttype that provides information for example on uri's to access the execution directory for staging, etc. To quote another European
"Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." Antoine de Saint-Exupery
3) The differences from the current BES are pretty minor, e.g., vectorization of create and change state.
As an aside, our experience with the current BES specification is that passing back the list of activities "contained" by a BES resource is awkward at best, and a performance inhibitor at worst. A direct call to get the instances makes much more sense. They way we have done this -- that does not require any new specification is via the use of the RNS porttype to "list" activities.
Andrew
Ps. Moreno, it might be useful if you used a screen sharing software such as glance while going through the document.
-----Original Message----- From: pgi-wg-bounces@ogf.org [mailto:pgi-wg-bounces@ogf.org] On Behalf Of Morris Riedel Sent: Wednesday, April 08, 2009 7:40 AM To: pgi-wg@ogf.org Subject: [Pgi-wg] TELCON Numbers and Reminder: 4 pm CET TODAY: GESDiscussions
Dear PGI team,
Moreno will chair a telcon about the PGI GES Strawman document today!
2009-04-08 - 4 pm CET
Call-in details as follow: via Skype call +9900827049931906 (free of charge) ordinary phone numbers (local rates) with the 9931906 conference number:
Austria 0820 401 15470 Belgium 0703 57 134 France 0826 109 071 Germany +49 (0) 180 500 9527 Switzerland 0848 560 397
Proposed agenda:
(1) GES Strawman document
(2) AOB
Material can be found here:
http://forge.gridforum.org/sf/docman/do/listDocuments/projects.pgi- wg/docman .root.input_documents.execution_service
# Strawman Document # Initial supportive slides about some strawman content
Your co-chair, Morris
------------------------------------------------------------ Morris Riedel SW - Engineer Distributed Systems and Grid Computing Division Jülich Supercomputing Centre (JSC) Forschungszentrum Juelich Wilhelm-Johnen-Str. 1 D - 52425 Juelich Germany
Email: m.riedel@fz-juelich.de Info: http://www.fz-juelich.de/jsc/JSCPeople/riedel Phone: +49 2461 61 - 3651 Fax: +49 2461 61 - 6656
Skype: MorrisRiedel
"We work to better ourselves, and the rest of humanity"
Sitz der Gesellschaft: Jülich Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498 Vorsitzende des Aufsichtsrats: MinDirig'in Bärbel Brumme-Bothe Vorstand: Prof. Dr. Achim Bachem (Vorsitzender), Dr. Ulrich Krafft (stellv. Vorsitzender)
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participants (1)
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Andrew Grimshaw