ct-grid

ct-grid@nikhef.nl

243 discussions

[Ct-grid] MogileFS anyone?
by Sander Klous 21 Sep '09

21 Sep '09

http://www.danga.com/mogilefs/ Iemand hier wel eens van gehoord, mee gewerkt getest? Ik kwam het tegen in een sun white paper over cloud computing.

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[Ct-grid] [Fwd: Our government moves into the cloud]
by Sander Klous 20 Sep '09

20 Sep '09

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[Ct-grid] vacancies for e-science at the AMC
by Silvia D. Olabarriaga 14 Sep '09

14 Sep '09

Dear colleague, The e-Bioscience group of the Bioinformatics Laboratory of the Academinc Medical Center of the University of Amsterdam has 3 openings for + grid system engineer (1 year, 1 year pending) + scientific programmer (2+1 years) + post doctoral fellow (2+1 years) More information can be found on http://www.vl-e.nl/vlemed/vacancies.html Could you please forward this message to those that might be interested? Thanks in advance! Best regards, -- Silvia D. Olabarriaga Assistant Professor Bioinformatics Laboratory Dept. of Clinical Epidemiology, Biostatistics and Bioinformatics Academic Medical Center +31 20 566 4660 (Tue-Fri) Informatics Institute +31 20 525 7549 (Mon) University of Amsterdam http://www.science.uva.nl/~silvia/contact.html

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[Ct-grid] Next BiG Grid Meeting: Monday 14 Sep at 13.30h in room N3.28
by Dennis van Dok 11 Sep '09

11 Sep '09

The Next BiG Grid meeting will be held on Monday 14 September from 13.30-14.30h in room N3.28. Agenda: - Operations summary - Middleware - Applications - AOB Videoconf is available as usual. Minutes to be taken by Tristan. Minutes of the previous meeting(s) are located here: https://www.nikhef.nl/pub/departments/ct/grid/2009/ Enjoy your weekend, Dennis van Dok

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[Ct-grid] Fwd: [iSGTW] iSGTW - 9 Sept 2009 Email
by Jeff Templon 09 Sep '09

09 Sep '09

For those who don't get it otherwise : VL-e (bird avoidance) in this issue of ISGTW!! JT Begin forwarded message: > From: iSGTW Newsletter <newsletter(a)isgtw.org> > Date: 9 September 2009 09:56:58 GMT+02:00 > To: templon(a)nikhef.nl > Cc: isgtw(a)isgtw.org > Subject: [iSGTW] iSGTW - 9 Sept 2009 Email > > > > About iSGTW | Contact iSGTW | Subscribe | Search | > Archive | Resources > > > > Issue 141: iSGTW 9 September 2009 > > > A SLiM chance for viruses > > > Viruses have evolved a clever way of reproducing. They hijack the > replication machinery of their host cell, which is controlled and > regulated by a variety of signaling pathways, and fool them into > producing copies of itself. > > To combat this, Richard Edwards, head of the Bioinformatics and > Molecular Evolution group at the University of Southampton, UK, > wants to better understand the signaling pathways. It’s an enormous > task, requiring the study of interactions between the 20,000 or so > proteins contained within the cells of the human body. > > To do so, Edwards is focusing on short, linear sequences of amino > acids known as SLiMs. > > And in order to do that, Edwards wrote the SLiMFinder, a computer > program running on OMII-UK’s grid. > > Read more > > Feature > > Calming the wakefield > Supercomputing simulations can depict what happens when an > accelerator beam passes through a cavity — without the problem of > dealing with a choppy electromagnetic wake. > > Read more > Readership survey > What you said about iSGTW > > The results from our summer 2009 readership survey are in, thanks to > all of you who participated. So, what did people think? > > Read more > > Link of the week > Citizen Cyberspace > > On 24 June, iSGTW reported on “citizen cyberspace,” volunteers > participating in on-line science projects. What’s happened since > then? > > Read more > Image of the week > Preventing bird strikes > > > Read more > > > > iSGTW 9 September 2009 > Feature - A SLiM chance for viruses > > Feature - Calming the wakefield > > Feature - What you said about iSGTW > > Link of the week - Citizen cyberspace > > Image of the week - Preventing bird strikes > > iSGTW Blog Watch > Keep up with the grid computing blogosphere > > Announcements > Last chance for early bird registration, GHC, 9 Sept, Tucson, AZ, US > > 4 November deadline for NSF grad fellowships in computing > > Call for papers by 1 January, ICCS, Amsterdam, The Netherlands > > Jobs in grid > > Mark your calendar > September 2009 > > > 7-11, XtreemOS Summer School, Oxford, U.K. > > 7-11, NGS Advanced Distributed Services Summer School, Abingdon, > Oxfordshire, U.K. > > 16-18, NORDUnet, Copenhagen, Denmark > > 16-19, AD HOC NOW, Murcia, Spain > > 21-25, CLCAR 2009, Choroní, Venezuela > > 21-25, EGEE, Barcelona, Spain > > 30-3 Oct, Grace Hopper Celebration, Tucson, AZ, USA > > > More for the calendar... > > > > HeadlinesÂ |Â Site Map

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[Ct-grid] Multi-py-thon 2.3
by Tristan Suerink 08 Sep '09

08 Sep '09

Hallo Allemaal, Gezien het succes van multi-py-thon 2.2 vorig jaar, heb ik voor vandaag een multi-py-thon 2.3 gemaakt. Iedereen is van harte welkom om deze multi-py-thon 2.3 te komen nuttigen in H122 om 15:00 uur. Tot dan! Groet TS

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[Ct-grid] Taart om 10.00, H1.22
by David Groep 04 Sep '09

04 Sep '09

Voor iedereen die om 10.00 uur al wakker is, of wakker wil worden, of gewoon zin heeft langs te komen: in H1.22 is er vandaag om 10.00 taart om te gedenken dat ik weer een jaar ouder ben geworden... Tot over 35 minuten! DavidG. -- David Groep ** Nikhef, Dutch National Institute for Sub-atomic Physics,PDP/Grid group ** ** Room: H1.50 Phone: +31 20 5922179, PObox 41882, NL-1009DB Amsterdam NL **

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[Ct-grid] Data centers too cool?
by Dennis van Dok 31 Aug '09

31 Aug '09

Interesting article; I know we're being conscious about energy/costs/etc. but the new Nikhef PDP data center is pretty cold, at least the inlet is way below 25degC. Intel wants you to know that data centers are wasting energy - and money - by over-cooling their servers, burdened by warranties that may prevent them from aggressively raising their temperature. http://www.theregister.co.uk/2009/08/31/data_centers_run_too_cool/ --Dennis

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[Ct-grid] Next BiG Grid Meeting: Monday August 31 at 13.30h in room N3.28
by Dennis van Dok 28 Aug '09

28 Aug '09

The Next BiG Grid meeting will be held on Monday, August 31, 2009 from 13.30-14.30h in room *N3.28*. (Please take note of the different location.) This week's special: a presentation by Willem van Engen, titled: "Introducing jGridstart" Get started with the grid easily. jGridstart helps end-users to request, obtain, install and renew grid certificates in a friendly way. http://www.nikhef.nl/pub/projects/grid/gridwiki/index.php/JGridstart Agenda: - presentation by Willem - open action items * Jan Just: Look at CIC portal concerning downtime * Jan Just: Look at checksumming in GFAL. - Operations summary - Middleware - Applications - AOB Videoconf is available as usual. Minutes of the previous meeting(s) are located here: https://www.nikhef.nl/pub/departments/ct/grid/2009/ Minutes to be taken by Tristan. Enjoy the weekend, Dennis van Dok -- D.H. van Dok :: Software Engineer :: www.nikhef.nl :: www.vl-e.nl Phone +31 20 592 22 28 :: http://www.nikhef.nl/~dennisvd/

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[Ct-grid] action point: Look at CIC portal concerning downtime notifications.
by Jan Just Keijser 28 Aug '09

28 Aug '09

hi all, the other action point from last monday's grid-overleg: why are downtime notifications sent only a day before they actually occur? The short answer is: this is exactly as specified. If you read https://edms.cern.ch/file/829986/0.1/EGEE-downtime-notification-procedure.p… which in turn refers to https://edms.cern.ch/file/829986/0.1/EGEE-intervention-procedures.pdf then most downtime notifications fall into category C: − Send broadcast 1 day in advance − Broadcast targets: all ROCs, affected VOs, all production sites in the related ROC so the actual broadcast happens only 1 day in advance !! of course , this makes the downtime notification procedure kinda useless for us. As far as I see there are 2 options: 1) create an email list infrastructure-announce(a)biggrid.nl to which all BigGrid downtime notifications must be sent (on penalty of death-by-tickling or something like that) 2) the GOCDB, where all site downtimes are entered, luckily has a programming interface where you can retrieve all downtimes for a particular site after a particular date: we could thus create a cron job that periodically checks the GOCDB and broadcasts any messages , as appropriate. For example, if I do curl --cert $X509_USER_PROXY --key $X509_USER_PROXY --CApath $X509_CERT_DIR -k \ "https://goc.gridops.org/gocdbpi/public/?method=get_downtime&topentity=SARA-…" I get <?xml version="1.0"?> <ROOT> <DOWNTIME ID="45205458" CLASSIFICATION="SCHEDULED"> <HOSTNAME>srm.grid.sara.nl</HOSTNAME> <SEVERITY>OUTAGE</SEVERITY> <DESCRIPTION> The tape backend will be down for the whole day due to maintenance. srm.grid.sara.nl will be up but data on tape cannot be accessed. </DESCRIPTION> <START_DATE>1251705600</START_DATE> <END_DATE>1251748800</END_DATE> <FORMATED_START_DATE>2009-08-31 08:00</FORMATED_START_DATE> <FORMATED_END_DATE>2009-08-31 20:00</FORMATED_END_DATE> </DOWNTIME> <DOWNTIME ID="43305437" CLASSIFICATION="SCHEDULED"> <HOSTNAME>ce.gina.sara.nl</HOSTNAME> <SEVERITY>OUTAGE</SEVERITY> <DESCRIPTION> maintenance to broken switch hardware </DESCRIPTION> <START_DATE>1251190800</START_DATE> <END_DATE>1251219600</END_DATE> <FORMATED_START_DATE>2009-08-25 09:00</FORMATED_START_DATE> <FORMATED_END_DATE>2009-08-25 17:00</FORMATED_END_DATE> </DOWNTIME> </ROOT> so this API _does_ work... now we need a little XML scripting magic to turn it into a broadcast email - any takers? The upside of this approach is that we have a single entry point for downtimes , i.e. less chance of errors. share and enjoy, JJK

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