United BOINC

Blog de Ibercivis

Ajustes en las tablas y calendario de actuacion.

Un usuario tenia sistematicamente mas de 24 horas de CPU todos los dias. Tras examinar su configuracion y solicitarle datos de su maquina, el resto de las herramientas del sistema, incluido ps aux, tambien daban los mismos datos: porcentajes de utilizacion de CPU de hasta el 300%. Al parecer es un problema del nucleo de linux cuando esta a su vez multihilado, multinucleo y preemptivo... es un problema general, pero no demasiado. En Ibercivis, tan solo un una maquina de cada mil muestra "eficiencias" por encima del 100%.

En el caso que nos ocupa, las eficiencias muestreadas durante el mes de concurso han sido, en tanto por uno: 3.1, 3.47, 1.89, 1.73, 2.73. Hemos determinado pues aplicar a esa maquina un factor de correccion de 2.62.

Sí alguno de vosotros podeis reproducir el problema con fiabilidad (no hace falta tener Ibercivis ni BOINC, basta con fijarse en el ps, aunque puede que solo ocurra en procesos multihilo corriendo con un nice alto) nos gustaria tener noticias de ello. Me dicen los de grid que ya hubo un debate parecido cuando el Pentium 4 comenzo a incorporar funcionalidades multihilo.

En cuanto al resto de los concursantes, encontramos que cumplen la normativa, aplicadas las penalizaciones…

PrimeGrid

AP26 application available for Solaris

We have released a version of AP26 application for 64bit Solaris (on AMD x86_64 or Intel EM64T CPUs, platform name x86_64-pc-solaris). This is our first application for this platform, which also makes AP26 an application that runs on the most platforms. Thanks to Gerrit Slomma for building the app! Psst... the PS3 version is coming ;)

Blog de Ibercivis

Preparando los sorteos.

Hoy termina la fase de concurso. En los proximos dias se resolveran las reclamaciones y se asignaran numeros para el sorteo. La forma de asignar numeros sera el siguiente programita. Una vez ejecutado, comunicaremos publicamente y personalmente los numeros asignados para cada sorteo. Todo esto se anunciara en la web corporativa, aqui lo que os pongo es el codigo de reparto para que os hagais a la idea y aviseis si veis algun fallo Una salvedad: los comentarios dicen "crédito" pero como caracter general, como podrian ser "derechos", "votos", o en este caso horas y minutos de cpu.

#include
#include

// Se aplica la ley D’Hont para repartir NB boletos entre NP participantes
// atendiendo al número de créditos nc[].
// Se consideran todos lo cocientes nc[i]/n, con n natural, y se van asignando
// créditos por orden de cociente decreciente. En caso de cocientes iguales
// se da prioridad al que tiene un número de créditos mayor, y si hubiera
// coincidencia al que esté primero en lista.

#define NB 100000   // número de boletos
#define NP 10      // número de participantes

int nc[NP]; // número de créditos de cada participante
int nb[NP]; //…

Ramsey@home

I will be gone for a week. Still working on new implementation

I'm going to be gone for a week (until the 10th) so if anything goes wrong with the server it won't be fixed until then. I've started investigating new algorithms and approaches and I think I've decided on one but it's going to take me awhile longer to implement it so please hold tight! Thanks guys!

PrimeGrid

Record AP24 Found

PrimeGrid has found a record AP24 (Arithmetic Progression of 24 primes). It is the largest known AP24. It has an ending term of 60312982868878297 surpassing the old record of 25490711550130537. The finder is (AFXTBA Pitheque) of France. He is a member of the L'Alliance Francophone team. The progression is written as 14992521666441877+8832442*23#*n for n=0..23. It was found in the AP26 Search.For more details on this find and the AP26 search, please see this forum post.

MindModeling@Home (Beta)

MindModeling.org Banner Contest 2009!!

While our researchers are preparing new models to run on MindModeling.org, the MM team has decided to take some time to update and make improvements to the website. Part of this is the inclusion of a Mind Modeling banner that can be displayed at the top of our main webpage. Instead of simply making the banner ourselves, we decided to open up the design to all of our volunteers and hold a contest to select the best design. The banners will be voted on by the MindModeling team, and the winner will get to see their work displayed on MindModeling.org for at least the next year. We will keep the contest open until the end of July, 2009. Please submit all entries to our forum here: Banner Contest 2009 or via email. If there are any questions or concerns, please let me know through email. -Tom

Einstein@Home

Project News June 29, 2009

The Einstein@Home project suffered a fileserver crash and has been offline for the last few days as a result. The project is finally online again and should be back to normal soon.

SETI@home

Project News June 29, 2009

We updated the SERENDIP web site, now containing information about our recent trip to Arecibo (to install the new instrument and do some testing).

SIMAP - Similarity Matrix of Proteins

New Workunits in the evening (UTC) of July 01

New Workunits: the calculation of similarities and features of the new sequences, that were imported from protein databases into SIMAP until the end of June, will start in the evening (UTC) of July 1st.

MindModeling@Home (Beta)

Daemon shutdown and DSST6 model

Hello crunchers! A model that we submitted to the volunteers last week was recently aborted, but all the workunits were not purged from the database. We're shutting down the server side daemons until all instances are removed. In the meantime, please abort any workunits with the prefix DSST, because generally they will not work on volunteer machines. Thanks! -Tom

Docking@Home

D@H in Scientific American

Docking@Home is in Scientific American!! Check the link at the 60-Second Science Blog

Quake-Catcher Network Seismic Monitoring

QCN Supports 64-bit Mac and Windows

New versions have been put up which support 64-bit Mac OS X and 64-bit Windows (XP and Vista) operating systems. If you are running the BOINC Mac Universal client or the BOINC Windows x64 client it should automatically detect this and download the correct version. The 64-bit versions do not support the MotionNode Accel USB accelerometer at this time.

There are also 64-bit versons of QCNLive for Mac available here (actually a universal binary for PowerPC, Intel 32-bit, and Intel 64-bit). There is a 64-bit Windows QCNLive available here

Please post any problems in the Message Boards!

POEM@HOME

POEM@HOME in the news (2).

The show aired a bit earlier than expected. Our volunteer cruncher BenjaminH (who is also active in the T3SS project science-wise) recorded the show and, translated it and embedded English subtitles. It can be found here: German with English subtitles and German only. Thanks again to Benjamin and all of you supporting the project.

Spinhenge@home

Project News June 26, 2009

We will not be offline this weekend. The work on electrical installation were finished over this week. Have a sunny weekend.

MindModeling@Home (Beta)

Database Migration Complete!

Hello crunchers! MindModeling.org has completed it's database migration, run two small tasks within the last couple of days, and is ready to submit large cognitive models to the volunteer community again. Our team and contributers are expanding, our research is growing, and our models are getting more complex and computationally intensive. We look forward to the active participation from our volunteers, and as always, we appreciate your help! Good luck and happy crunching! (So say we all) -Tom

World Community Grid

New Partner for June 23, 2009

World Community Grid welcomes its newest partner: Kinetic Solutions Srl – ITALY - Join the Kinetic Grid team!

BOINC

BOINC news June 23, 2009

Read an article about Docking@Home in Newswise Science News.

Einstein@Home

Project News June 23, 2009

Webpages describing the new Einstein@Home search for binary pulsars in Arecibo radio data are online now. Follow this link to learn more about radio pulsars, how our new search works, and how it can help us searching for gravitational waves.

GPUGRID

2 billion credits reached!

The GPUGRID.net project just awarded its 2 billionth credit! This means that in totat you donated around a sextillion (10^21) floating point operations, which we used to compute approximately 1 millisecond of simulated trajectories in total. Congratulations to all volunteers!

Rosetta@home

Project News June 22, 2009

The minirosetta application has been updated to version 1.80. For details and to report bugs, go to this thread.

MilkyWay@home

Project News: RAC minimum on the Cafe

Do to some rather unsavory activity in the Cafe, it now has a minimum RAC of 5 to enable posting messages.--Travis

Ramsey@home

New Direction Needed

Our result turned out a bit short of the current known lower bound, so I believe that the project will have to switch directions... I'm currently looking into a few different things and I'll let everyone know once I choose one. Thanks guys!

PrimeGrid

New Top Host!

Congratulations to Worldwide Center of Mathematics, owner of the new top host at PrimeGrid. While this position has changed many times in the past, what makes this occasion unique is that this is the first time the top host is a Mac!!!EDIT: The above is in terms of RAC. In terms of total credit, UL1 holds a commanding lead of over 5M cobblestones with this host.

BRaTS@Home

Power Outage

Due to a power outage, the server was temporarily unavailable. Everything is back to normal now and credit lost due to the outage will be dealt with after all results are back.

GPUGRID

Server update

We have updated to the latest server software. Also now the minimum required driver version is enforced to be at least 180.

WEP-M+2 Project

Project News June 19, 2009

12-digit factor of P2203 has now been found by the project 3835 times

Genetic Life

1 Year Old Today

The project is 1 year old as of today. In that time you have processed over 900,000 workunits, produced in excess of 1,300,000 results and ran a number of simulations that have survived for over 3 trillion instructions.

Genetic Life

Work Rate

I have seen an unprecedented demand for workunits over the last few days and am reaching the limits of diskspace available. There may therefore be times when no new work is available as the work unit cycling job only runs once every hour (at half past the hour). I have also increased the cut off point beyond which a simulation will be saved for deeper analysis to 3.75 trillion instructions (75 runcycles) from 2.5 trillion (50 runcycles)

Rosetta@home

Project News June 16, 2009

The minirosetta application has been updated to version 1.76. For details and to report bugs, go to this thread.

GPUGRID

Big queue of fresh WU!

We have +2,000 WU in queue to be crunched waiting for you guys! Actually, and that's for real, the publication on the SH2 system may be able to drop off finally after these results. Not only these, but Ignasi is defending his Masters thesis this Friday and would be delighted to show these results (properly credited of course). Many thanks in advance!