ct-grid September 2010

ct-grid@nikhef.nl

3 participants
6 discussions

[Ct-grid] terena certificates
by Tom Visser 04 Feb '11

04 Feb '11

Hi, Based on comments in a recent ct grid meeting i've been playing around with the terena certificates. This nice service enables members of accredited organisations to apply for a certificate while using their home instutions credential to identify themselves. I have requested a certificate en succesfully became a member of a VO. Be carefull: Changing your certificate dn would mean you will have problems accessing your previous data. https://tcs-escience-portal.terena.org/about_nren.php I have one question: are these fully qualified certificates for grid use, or are their any differences? Are their any issues we would have to reckon with? Does anybody have experiences with job-submission using a terena certificate? Thanks for your thoughts, Tom Available identity providers NIKHEF SARA SURFNET TERENA TUDELFT Universiteit Tilburg Vrije universiteit Tom Visser Phone: +31617411603 Mail: tom.visser(a)sara.nl SARA Computing & Networking Services High Performance Computing and Visualization http://www.sara.nl

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[Ct-grid] PPT, EGI InSPIRE en EMI (Nikhef urenschrijvers)
by Arjen van Rijn 02 Nov '10

02 Nov '10

Beste allen, Een aantal van jullie heeft (automatisch) bericht gekregen uit het PPT-systeem, met het verzoek om je uren over de maanden mei en juni daarin te gaan bijhouden. Ik wil met zowel de projectleiding van EMI als van EGI-InSPIRE gaan afspreken, dat Nikhef de urenverantwoording levert vanuit haar eigen systeem - zoals we dat ook in het EGEE-tijdperk hebben gedaan. Ik heb daar nog geen overeenstemming over, maar ik heb goede hoop, dat dat zal lukken. Voor nu mag je dus deze reminders even negeren. Stay tuned! Groet, Arjen

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[Ct-grid] BiG Grid pictures
by Jan Just Keijser 21 Sep '10

21 Sep '10

Pictures from the BiG Grid User Day 2010 (and also the AllHands event) are now available at http://www.biggrid.nl/event/album share and enjoy, JJK

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[Ct-grid] SAGA talk @ SciencePark next week
by Jan Just Keijser 16 Sep '10

16 Sep '10

The AMC and BiGGrid invite you to attend a very interesting talk next week at the Science Park: A Fresh Perspective on Distributed Scientific Applications and Cyberinfrastructure by Shantenu Jha see more details below. Date: 21 Sept Time: 15-16h Place: NIKHEF, room H331 (route: http://www.nikhef.nl/en/about-nikhef/contact/how-to-reach-nikhef/) ============= A Fresh Perspective on Distributed Scientific Applications and Cyberinfrastructure It is generally accepted that the ability to develop large-scale distributed applications that are extensible and independent of infrastructure details has lagged seriously behind other advances in cyberinfrastructure. Even accounting for the fact that developing applications for distributed infrastructure is a difficult undertaking, there are suspiciously few novel and extensible distributed applications that utilize multiple production distributed resources. The reasons are complex and defy over-simplication. As the sophistication and scale of distributed infrastructure increases, the complexity of successfully developing and executing such applications will increase in both quantitatively and in qualitatively newer ways. Against this backdrop, we will introduce the IDEAS design objectives -- Interoperabiltiy, Distributed Scale-out, Extensibilty, Adaptivity and Simplicity, for developing distributed applications. We then briefly outline SAGA -- which provides a simple, high-level POSIX-inspired API to the most commonly required distributed functionality independent of the underlying distributed environment details. We will discuss how SAGA facilitates the development of applications that can adhere to the IDEAS objectives. Finally, we will highlight several examples of how SAGA, and simple extensible abstractions built using SAGA, have been used by a range of different applications, tools and frameworks to effectively develop and execute distributed applications on a variety of distributed infrastructure, and thus provide a fresh perspective to developing distributed applications by addressing many limitations of the traditional modes of development. Shantenu Jha is the Director for Cyberinfrastructure Development at the CCT, and a Research Professor in Computer Science at Louisiana State University (LSU). He is also a theme-leader at the e-Science Institute, Edinburgh and a Visiting Researcher at UC-London. His research interests lie at the triple point of Computer Science, Cyberinfrastructure Development and Computational Science. He is a co-PI for $2.6M NSF award that enables LSU/LONI participation as a TeraGrid Resource Provider. Shantenu leads the SAGA project and is currently working on co-writing a book on "Abstractions for Distributed Applications and Systems: A Computational Science Perspective" to be published by Wiley in 2010.

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[Ct-grid] EGI.eu op Nu.nl
by Oscar Koeroo 14 Sep '10

14 Sep '10

http://www.nu.nl/internet/2333305/eu-bundelt-computers-onderzoekers.html

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[Ct-grid] relational db vs nosql
by Mark Santcroos 10 Sep '10

10 Sep '10

Some input for the ongoing discussion: http://highscalability.com/blog/2010/9/5/hilarious-video-relational-databas… Have a nice weekend. Cheers, Mark

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ct-grid September 2010