Project will be offline Saturday, March 12
Source:  NFS@Home
jeudi 3 mars 2016 00:55

Due to a planned electrical upgrade in the data center, the NFS@Home project will be offline on Saturday, March 12. I am told the upgrade should be completed by the end of the day. We apologize for any inconvenience.


10,298+ is factored
Source:  NFS@Home
jeudi 3 mars 2016 00:45

One more Cunningham Most Wanted number is factored. The composite cofactor of 10,298+ is the product of 128-digit and 139-digit prime numbers. In addition to finishing up 2,1285-, we are currently working on the two easier numbers 5,419- and 5,419+. Thanks again for your help!


Finishing solution of the problem #2
Source:  VGTU project@Home
mercredi 2 mars 2016 14:02

Dear VGTU@Home users,

All workunits of the current problem have been generated and sent. Now we wait for all results to return back to the project server. We remind that our problem is a global optimization problem; therefore even last workunits potentially can produce the optimal solution. So we ask not to cancel them…

With best regards,
The Project Team.


New SSL certificates
Source:  GPUGrid
mardi 1 mars 2016 14:16

I've just moved the project over to using Let's Encrypt certificates. Please post here if there are any connectivity problems Matt


Work generator is suspended for a week
Source:  SAT@home
mardi 1 mars 2016 09:18

Work generator is suspended for about a week. New type of an experiment is comping soon.

Генератор заданий приостановлен примерно на неделю. Готовится новый вид эксперимента.


Comparing galaxy morphology at high and low redshift
Source:  theSkyNet POGS - the PS1 Optical Galaxy Survey
lundi 29 février 2016 16:09

Hopefully everyone has been enjoying the latest set of galaxies. These objects are galaxy mergers identified by citizen scientist volunteers at galaxyzoo. We are going to be using them as part of an experiment contrasting different indicators of galaxy morphology at high and low redshift, so early and late epochs in the universe, respectively. A control sample of non-mergers is also being run at lower priority. In particular, working with my colleagues at JHU, we are measuring what is called non-parametric morphological indicators -- things like concentration, asymmetry, Gini coefficient, and many more -- both on the observed telescope images and on the physical parameter maps your CPUs are generating. This is normally done only on the observed images, and by working with derived physical quantities we hope to eliminate potential bias. Also, such measurements (for a complete set of non-parametric indicators) have never yet been compiled for the low redshift universe, though done frequently at high z. By working with the galaxies you are now processing we will establish a 'baseline' for galaxy morphology in the present day universe. Thanks!


Competition 'Additional investigation'
Source:  SAT@home
lundi 29 février 2016 13:15

During discussion of goals and results of SAT@home the idea of new approach to search for diagonal Latin squares (DLS) and orthogonal systems based on them has appeared. As a result of an additional investigation several new pairs of othogonal diagonal Latin squares (ODLS) of order 10 were found. In particular, a DLS of order 10 with exactly 4 orthogonal mates was found. Based on this DLS a record pseudotiple was constructed. In the pseudotriple DLS A is completelty orthogonal to B and C, while DLS B and C are orthogonal in 65 out of 100 ordered pairs of elements.

При обсуждении целей и результатов проекта SAT@home возникла идея применить новый подход к поиску диагональных латинских квадратов (ДЛК) и ортогональных систем, построенных на их основе. В ходе дополнительного исследлования получены новые пары ортогональных диагональных латинских квадратов (ОДЛК) порядка 10. В частности, найден ДЛК порядка 10, на основе которого были построены 4 пары ОДЛК. На основе этого ДЛК также была построена рекордная псевдотройка. В этой псевдотройке ДЛК A ортогонален B и C, а ДЛК B и C ортогональны по 65 упорядоченным парам элементов из 100 возможных. Подробности будут выложены после полной обработки и проверки полученных данных.


*CXCL12_chalcone_umbrella* batch
Source:  GPUGrid
dimanche 28 février 2016 18:52

Hi everyone, yesterday we launched a bit more than 13,000 short WUs called *CXCL12_chalcone_umbrella*. They are pretty small WU, of 8ns (compared to a normal long WU ~40ns) and we hope they are easy and fun for you to crunch. Please post any problem you may encounter. Scientists have been using a technique called Umbrella Sampling for some time now, with relative success in determining what we call binding free energy (which indicates how strongly a drug can bind its protein target). It is a pretty straightforward and much less expensive technique compared to the one we regularly use in our lab (adaptive sampling). However, it is particularly error-prone if the assumptions we take are wrong. We are particularly excited about these WU, because while most scientific effort have been focused on reproducing free energies for single particular models or (most of the time) very simple toy models, it is the first time to our knowledge that, thanks to the fantastic community we have built together in GPUGRID, we can use this technique in a real case to screen potential drugs binding to CXCL12, a chemokine related to cancer metastasis. Thanks to everyone for your contribution and I will be happy to assist you if you find any problem on the way. :)


Server daemons temporarily stopped
Source:  LHC@Home Classic : SIXTRACK
samedi 27 février 2016 13:36

Due to a problem with an underlying disk server, the BOINC daemons are temporarily shut down until the disk volume is back.

https://cern.service-now.com/service-portal/view-outage.do?from=CSP-Service-Status-Board&n=OTG0028941


https access
Source:  YAFU
samedi 27 février 2016 12:29

Thanks to the https://letsencrypt.org/ initiative the server runs since some days https with a free letsencrypt certificate. We will see if in 2 month the automatic recertification works.



   

Articles en rapport