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2019 BOINC Pentathlon is over - a big thank you from the SixTrack team!
the 2019 pentathlon is over, and we would like to thank all the participants for having crunched our tasks! We saw the BOINC CPU capacity almost doubled, boosting our calculations, even though it was only for few days. We are very grateful for that!
The SixTrack team would also like to thank all you volunteers who regularly support us with your CPUs. You give us the possibility to deepen our understanding of the dynamic aperture, a quantity of paramount importance for the stability of particle beams in big research accelerators like superconducting colliders - last but not least a very recent paper on the most important journal in the field of accelerator physics, comparing simulations and measurements:
where simulation results have been obtained thanks to you and BOINC!
A lot has been already done with your help, but a lot more has still to come in the next future. We count on your support!
Keep up the good work,
Alessio and Massimo, for the SixTrack team
base R875 proven
On 22th of April, whizbang, a member of the team Ars Technica found the last prime for base R875.
The prime 38*875^256892-1 has 755780 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.
20 years and counting!
Happy Anniversary! On this date in 1999, SETI@home came online. Since then millions of our volunteers have helped us sift through petabytes of data from multiple radio telescopes. ET still hasn't shown up to the party.
We're not discouraged. We're able to examine less than a tenth of a percent of the radio spectrum, over only 1/3 of the sky and a limited number of additional stars. But our capabilities are increasing every day. In 1999 it took up to a week to process a single workunit on a home PC. Now, on a machine with a GPU, it might only take a few minutes to do a far more detailed and more sensitive analysis. Who knows what the next 20 years will bring?
we are testing a new application that will provide Turing support based on the new application acemd v3.
For now we have deprecated the linux version of v2 and we will soon release v3 for linux using a boinc wrapper.
If the boinc wrapper works, then it should be easy because the application works by itself and it has been tested extensively.
GPU status update
It's been over a month since our last update, but I now have some good news. I have made some improvements to the GPU code and am ready to start deploying the new GPU apps.
I will start with the AMD OpenCL version for Linux. This will be a beta version. I have had a hell of a time with the AMD implementation of openCL, and this app still doesn't work on my Fedora system, and I believe strongly it's due to the graphics driver. But I have had the help of a volunteer named Wiktor and it runs fine for him (I believe he runs Ubuntu). Please keep in mind that AMD officially only supports RHEL and Ubuntu, so I will be interested to hear if this app works for anyone with an "unsupported" linux distro like myself.
I also have openCL Windows apps that were cross compiled using mingW. I have no means of testing these, so I am not ready to deploy them just yet. But if anyone would like to take them for a spin offline, please let me know, and I can send them to you.
BOINC Pentathlon - Sixtrack sprint
We are very grateful to have been chosen for the [Link] BOINC Pentathlon of SETI Germany over the next days. For this, the Sixtrack team has submitted a huge backlog of jobs, and our servers will primarily distribute Sixtrack tasks over the next days. There will only be drip-feed of other applications for now until our backlog is reduced. For fans of other applications, stay tuned or run Sixtrack for a few days.
CMS -- Please set "no new tasks"
Hi to all CMS-ers. We need to drain the job queue so that a new version of the WMAgent can be installed.
Can you please set No New Tasks so that your current tasks can run out and no new jobs start? If you have any tasks waiting to run, please suspend or abort them.
Thanks, I'll let you know as soon as the change is done.
We are having database problems and have to schedule an intervention at 3:30pm UTC. The LHC@home servers are back again. We may have some irregular dispatching of some applications over the next hours.
Native Theory Application (TheoryN) Released
The Native Theory Application for Linux has moved out of Beta status and is now generally available. It is similar to the Native ATLAS application in that it requires CVMFS to be installed locally but does not require Singulariy as it uses Linux Containers (runc). To setup your machine for this application please follow the[Link] instructions.. Even if the Native ATLAS tasks are running successfully, follow the instructions to ensure that CVMFS is configured correctly for both and that Linux Containers are enabled. This is a new application (TheoryN) rather than an alternative version of the Theory application as they have different resources requirement. If there are any issues, please post them to the Theory messages board.
Emission from ULXs
After a series of papers on gravitational wave sources, we published results concerning ultra-luminous X-ray sources. In the paper we analyse the anisotropic emission of radiation from these sources and show that the actual population of ultra-luminous X-ray sources differs from the observed one. Particularly, in flux limited surveys, the observed population will be highly biased toward black hole accretors, whereas neutron star accretors dominate volume-limited observations.
The work can be found here [Link] https://arxiv.org/abs/1811.08998
As announced in the forums recently we have expanded our server capacity. This allows us to load-balance you all across several physical and logical servers. Thus enabling more crunchers to be serviced and several benchmarks (goals) to be tackled simultaneously.
As many of you know you can find our island on the topology at [Link] https://dhep.ga/statstopology.php. Logical servers mean there are now multiple worlds/continents/archipelagos so you may alternatively find your island at: [Link] https://dhep.ga/statstopology.php?liveRunID=1 (or possibly [Link] https://dhep.ga/statstopology.php?liveRunID=2).
PS: Similarly you can see progress of each run at [Link] https://dhep.ga/statsgoal.php?liveRunID=1 and diversity analysis at [Link] https://dhep.ga/statsstrains.php?liveRunID=1.
PS2: A quick reminder just in case you missed the previous post: You need to be on app version 2.14 in order to be crunching with DHE now for two reasons: (a) load-balancing support and (b) expanded memory for larger benchmark support.
PS3: We are now tackling by far the largest benchmarks in DHE's history. ALU2 requires 293 gates to perform its' function and an extra 323 for co...