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  • Constellation: Comet Trails: An IMEX application for predicting meteor storms at spacecraft or planets
    12.03.2014 15:11 Uhr is happy to announce the next application running on the Constellation platform, the “IMEX Cometary trails”. After successful tests during the last months, you will now help predicting meteor storms at spacecraft or planets by donating idle computing time. Description: The “IMEX Comet trails” project is an ESA-funded project run at the Institute of Space Systems (IRS) at the University of Stuttgart to characterize dust trails produced by comets in the inner solar system. We want to predict meteor showers at any position or time in the solar system: for example, can we predict meteor storms at spacecraft or at other planets?; can we understand how dust produced by comets disperses to form the interplanetary dust cloud? mqdefault Alle BOINC Projektnews (click here for Youtube-video Motivation: Meteoroid environment modelling is crucial to providing hazard risk assessments for the design phase of spacecraft missions: meteoroid impacts can damage or destroy spacecraft or spacecraft subsystems. Manned space activities are especially vulnerable to any damage caused by meteoroid impacts because of their much lower tolerance level, their large cross sections and their long exposure times. Such models also provide an important scientific role by helping to defining the dust environment and the parent bodies of these grains. Existing dust environment models do not include small-scale and time-dependent structures caused by streams and trails of recently released cometary material. Dr. Rachel Soja (IRS) commented: “I can’t wait to see what this plot looks like with all of the data! This data is intended for our first analysis of Leonid meteoroids on the date of one of the best Leonid storm in my lifetime – 18 November 1999. If they hit Earth in our model, then our model is ok. We’ll know this when we have all the data.13106221343 72e439341c n Alle BOINC Projektnews comet_trails_jupiter by on Flickr The IMEX contribution: The Interplanetary Meteoroid Environment for eXploration (IMEX) project aims to close this gap, allowing for identification of the important cometary streams at any point in space and time. We extend the application of meteoroid stream modelling at the Earth to ask whether we can determine `meteor showers’ that occur at spacecraft locations or at other planets or points of interest. This improves both our understanding of the impact hazard to spacecraft, and our understanding of the formation and dispersion of cometary trails and streams. Integrating dust trajectories with Constellation: We have developed a simple model of emission of dust from comets. We now need to integrate the trajectories of these dust particles as they orbit the sun, in order to explicitly include the effect of planetary gravity (Jupiter is a major perturber). For each comet we have thousands of test particles which must be integrated for 200-400 years. This problem is therefore trivially parallelizable. Our first aim is to model meteor storms and outbursts at the Earth to validate the model for use in predicting the meteoroid environment at other locations in the inner Solar System. First Work-Units: Our first workunits are to compute streams for the Leonids and the October Draconids. These are two meteor showers that we observe each year at the Earth – Leonids in November and Draconids in October. However, in some years, we pass through a trail of very recently released dust and rocks, and we see a ‘meteor storm’. The Leonids storms have been the most spectacular displays of meteors ever witnessed, and the storms of 1833 and 1867 helped to fuel scientific and popular interest in meteors, which had previously been considered a mere atmospheric phenomena, rather than evidence of extraterrestrial objects. More recently, Leonid storms were seen also in the years 1998-2002, with up to 3000 Leonids per hour. Understanding these storms through modelling can give us important clues about comets and their dust production, and of the dynamics of cometary dust trails and meteoroid streams. Draconids, named after the constellation Draco (the Dragon), also occasionally demonstrate unusual activity, such as major storms in 1933 and 1946, and, more recently, outbursts in 1998, 2005, 2011, and 2012. Leonid meteors come from a ‘Halley-type’ comet, 55P/Tempel-Tuttle, which has an orbit that stretches out the the orbit of Uranus, and hurtle into the Earth’s atmosphere at 70km/s. However, many meteors, such as Draconids, have rather lower speeds, of perhaps 20km/s – these come largely from ‘Jupiter-family comets’, which have the outermost part of their orbits near the orbit of Jupiter, and thus can suffer significant perturbations by this planet. These two streams are therefore complementary as test cases for the cometary trails model. Special Event – A Team Space Race – Yuri’s Night 2014 – Hunting Comets!: The announcement of the new application is the third and final reason for starting a team challenge! For this year’s Yuri’s Night, the 12th of April, which is also the birth day of the Constellation platform, we invite you for seven days of number crunching the workunits of Comet Trail and other Constellation apps. You and your team can join via BOINCstats. We also remind you to spend your weekend at one of the many Yuri’s Nigh events. You can check their website for a party near you! We will attend Yuri’s Night in our home town Stuttgart and we will have a fun day at the planetarium with great events and shows. So just leave your computers running and working for the team challenge, and have a great time outside!
  • First Results from Weather@Home 2014 UK Flooding Experiment
    11.03.2014 15:14 Uhr

    We have received an impressive response from the public after the launch of our experiment on the 4th of March. Our colleagues at the Oxford e-Research Centre, University of Oxford, estimate that nearly 1,000 new participants have subscribed to the project. Many thanks to all!

    We have now analysed the first 47 simulations that participants have run and they are plotted in the Figure below.

    weatherathome 2014 live results Alle BOINC Projektnews

    The blue dots represent the 2013/2014 winter as observed, and for this experiment, we received 20 simulations. For the “world that might have been” experiment, we received 27 simulations, which are shown as green dots.

    The smaller light green dots represent the individual patterns of sea surface temperature we estimated as the response of the climate system to man-made climate change. The smaller light green dots therefore represent the uncertainty in the human influence.

    At this stage, there are not enough simulations to make any conclusions about the role of climate change in the record wet winter 2013/2014. However, we want to illustrate to the public why we need such large ensembles, which is why we will show the “results” as they evolve.

    With this size of ensemble, the 2013/2014 winter as observed and as in the “world that might have been” are not distinguishable from another. Interestingly, our current wettest simulation comes from one of the  “worlds that might have been” simulations (the uppermost green dot) – but this could be entirely due to chance.

    We will also compare the rainfall totals with observations. For this, we will need to calculate the rainfall total from a dataset from the Met Office for exactly the same region as the one we defined for the simulations (land rainfall for South England and Wales).

    As this was a record wet winter, it has never been observed in the roughly 250 years of meteorological records, so we are looking at a 1/100-year event at least. As you can see from the figure, we are still only seeing 1/10-year events. We need more simulations to see any pattern, so please keep crunching!


  • Myles Allen and Nathalie Schaller on BBC Radio 4 Inside Science
    11.03.2014 14:53 Uhr

    Our latest Weather@Home project, looking at the 2014 winter flooding, was featured on last week’s Inside Science on Radio 4.

    Professor Myles Allen and project lead, Dr Nathalie Schaller, explained how the project is looking to see how climate change might have “loaded the weather dice” towards more flooding.

    Listen again to this episode of Inside Science or download the podcast [the piece on our project starts at 22:30 into the programme].

  • EDGeS@Home: New application – Zeta-Search
    11.03.2014 12:00 Uhr
    EDGeS@Home has launched a new application called Zeta-Search.
  • Docking@Home: ExSciTech games beta version online!
    10.03.2014 16:05 Uhr
    Explore the molecules that make up the world around us! Challenge yourself to identify them using molecule flashcards game! Build your own question sets to challenge the rest of us! Join us in the ExSciTecH (Exercise, Science, Technology, and Health) project!ExSciTecH molecule flashcards are live and now in public beta. You can access ExSciTecH here! You can play the flashcards game without an account, but you will need to register a new account to save your high scores and to build your own question sets. Your question sets will be public after we review them. In the forum, there is a tutorial on how to build question sets through this link. We look forward to having experienced volunteers with chemistry background to enrich our question sets. Please note that the account is separate from your Docking@Home account.
  • GPUGRID: New app on acemdbeta with Maxwell support
    10.03.2014 10:58 Uhr
    There’s a new application on acemdbeta, version 811 for CUDA 60 which supports the Geforce 750Ti. You’ll receive this app if your driver version is 334.21 or greater. Please report problems here. Matt
  • MindModeling@Home (Beta): Power Shutdown this Saturday (2014-03-08)
    06.03.2014 20:05 Uhr
    I apologize for the late notice, but I just received word that the Wright State University Engineering building where the MindModeling servers are located will be shut down temporarily this Saturday 2014-03-08 from 0700-1200 EST. I will be turning off our servers several hours in advance to facilitate a graceful shutdown. During this period, you will not be able to access our scheduler, this website, etc. There is a chance that I may not be able to remotely power-on the devices, in which case we will not have access again until the following Monday. -Tom
  • SETI@home: Astropulse database is back.
    06.03.2014 19:25 Uhr
    Astropulse work is flowing once again. Thanks to Matt and Jeff for performing the necessary brain transplant.
  • EDGeS@Home: New application – Zeta-Search
    05.03.2014 14:00 Uhr
    EDGeS@Home will launch a new application called Zeta-Search soon.
  • GPUGRID: Maxwell GTX750Ti
    05.03.2014 11:54 Uhr
    Hi Guys, Just a line to say we’ve got our first GTX750Ti card up and running. The performance out-of-the-box matches a GTX480. We’ll have a public app for GPUGRID just as soon as CUDA 6.0 is publicly released, which will probably happen at GTC at the end of the month. Matt
  • GPUGRID: WU opi: Simulations on opioid receptors
    05.03.2014 08:33 Uhr
    Hi, I have just submitted several hundred simulations on a collaboration study on opiod receptors. They are not much. Any problem use this thread. thanks, gdf
  • Wildlife@Home: Windows Workunits
    05.03.2014 07:14 Uhr
    Hi everyone, I am happy to announce that I have sent out the first round of windows work units. Please note that these may be unstable and I will address any errors as they arise. Thanks!
  • New Weather@Home Project – Were Recent UK Floods Due to Climate Change?
    04.03.2014 10:08 Uhr

    You can help us answer the question: How much, if at all, was climate change to blame for the recent flooding in the UK?

    Help us answer this question in the latest weather@home experiment, launched today, with live results posted on the website daily over the next month. Nathalie Schaller explains the science behind this new project:

    The winter of 2013/2014 was the wettest ever recorded leading to severe flooding in many parts of the country. Many have been asking whether this level of extreme rainfall and the resulting floods are linked to climate change. This is not an easy question to answer, and we can never say that any particular flood was caused by climate change. However, we can ask and answer the question of how the odds of getting an extremely wet winter have changed due to man-made climate change: have past greenhouse gas emissions and other forms of pollution “loaded the weather dice” towards (or perhaps even away from) an event of this nature?

    In order to see if the dice have been loaded, we need to roll the dice many, many times, and that is what this experiment will do: we are going to run climate models for the recent winter thousands of times, creating an “ensemble” of models, which should show us the effect of any subtle loading. The ensembles need to be as big as possible to obtain robust estimates of the probability of rare events.

    So, to do this, we are asking for the help of the general public. We need to run two very large “ensembles” of weather simulations, one representing conditions and “possible weather” in the winter we have just had, and one representing the weather in a “world that might have been” if we had not changed the composition of the atmosphere through greenhouse gas emissions. By comparing the numbers of extreme rainfall events in the two ensembles, we can work out if the risk of a wet winter has increased, decreased or been unaffected by human influence on climate. We expect to obtain results within a month from launch, and plan to publish results as they come in, so you will be able to see the result as it emerges.

    We do not know what the results will be. It is absolutely possible that the experiments will tell us that climate change had nothing to do with the extremely wet winter we have just had.

    Please help us by donating your spare computing power to the project – sign up now!

    Read more about the Weather@Home 2014 experiment:

    Read press coverage of this experiment in the Guardian:

  • Collatz Conjecture: Android Applications Now Available
    03.03.2014 21:25 Uhr
    Solo Collatz applications are now available for Android. The Android application supports ARM, x86, and MIPS (Little Endian) processors. Assuming Murphy’s Law will prevail as usual even though the apps work on my hardware, please let me know of any issues.
  • Wildlife@Home: projects, posters and publication information
    02.03.2014 22:03 Uhr
    Hi Everyone! Sorry things have been a bit slow this last week — I was traveling and did not have a particularly good internet connection. On another note, our students have been somewhat busy and successful at presenting posters about the project. I’ve made a page for our publications/posters/presentations here: If you’d like to take a look at any of the posters. One even won the most outstanding student poster award at the North Dakota Chapter of the Wildlife Society Conference. Our students have also written up descriptions of the projects that they’re using Wildlife@Home for, and links to these can be found on the alpha version video selection page here: Feel free to ask us any questions about them, and suggestions for improving them are welcome! Once I get back to NY tomorrow I’ll start making more updates to the validator, and the new interface. I’m hoping in the next week or so we can move the alpha version of the webpage live. cheers, -Travis
  • MilkyWay@Home: More New N-Body Runs
    28.02.2014 21:07 Uhr
    I have started: de_nbody_02_28_orphan_real_0 ps_nbody_02_28_orphan_real_0 de_nbody_02_28_orphan_real_1 ps_nbody_02_28_orphan_real_1 de_nbody_02_28_orphan_real_2 ps_nbody_02_28_orphan_real_2
  • yoyo@home: OddWeirdSearch: report on new stage of our search
    26.02.2014 23:00 Uhr
    Check the posting about information from the author about the next stage.
  • yoyo@home: OGR-27: official results
    26.02.2014 23:00 Uhr
    Dear friends, is proud to announce the completion of OGR-27! It is almost five years ago to the day that we began on this exciting journey. Almost 20,000 of you joined us.. without whom, it would have been impossible. We have proven conclusively by the exhaustive search of all possible rulers that the previously predicted 27-mark ruler is indeed the most optimal one. We were confident that we would find a more optimal ruler during this search, but it was not to be. We expected it to take us seven years to complete this awesome task but thanks to your efforts recruiting your friends and co-workers to our effort and a little help from Moore’s Law, we did it in five. The best known ruler is 27/3-12-26-25-29-2-9-36-10-68-1-4-17-53-35-8-16-28-6-14-13-71-18-19-23-7 (length 553). Represented the other way, this is marks at positions 0 3 15 41 66 95 97 106 142 152 220 221 225 242 295 330 338 354 382 388 402 415 486 504 523 546 553. In total, we verified 302,621,586 unique stubs (2,526 with 3-diffs, 179,120 with 4-diffs, 6,457,815 with 5-diffs and 295,982,125 with 6-diffs), requiring each to have been completed at least two times independently and with an identical node count. Additionally, due to a client implementation bug in some early clients, we required all stubs to have been verified at least once by a client greater than v2.9109.518. This delayed us by a few weeks towards the end of the project but was necessary to ensure that no work was skipped. The shortest ruler was sent to us 11 times, with one user completing it twice. I will be writing to this user directly for some help picking lottery numbers! We will be sending some swag to the lucky winners and hope that you will join us as we move on to our next challenge! (from
  • SETI@home: Astropulse Offline
    26.02.2014 20:22 Uhr
    The server hosting the Astropulse database crashed. The database is okay, and we have a replacement machine, but it may be 1-2 weeks before Astropulse is back on line. We are still serving regular (multibeam) workunits in the meantime.
  • GPUGRID: "Power To Give" – volunteer distributed computing for smartphones
    24.02.2014 23:17 Uhr
    HTC have just announced “Power To Give”, a new BOINC-based initiative for volunteer distributed computing on Android smartphones. HTC deserve to be commended for putting effort into helping the development of a polished BOINC client for Android. You can read all about it here: and see a video here GPUGRID’s very own Gianni De Fabritiis presented at the launch, happening as part of the Mobile World Congress in Barcelona. Video to follow soon, but you can read as-it-happened coverage here We’re very excited about this! Expect more news soon… Matt
  • Constellation: Call for mentors and students for Google Summer of Code 2014! Google awards stipends of US$5500 to selected students
    24.02.2014 20:30 Uhr
    Due to spamming, please reply to this thread on our ideas thread! accepts applications for mentors and students for Google Summer of Code (GSOC) 2014, now! As a mentor, you can realize your space software, and as a student you are coding it during the summer and are paid US$5500 by Google for it! The application period for Mentors is open now and you can apply via So be creative and propose your idea and be a trustworthy mentor to a young and creative mind! For you students, the application period starts 10 March and will end 21 March. Prepare yourself and read our and all the other 190 organizations’ ideas. And then come back to, because we have the most awesome coding ideas for your. They are all space applications! Here is a brief overview:
      [SSGT-XX] Solar System Grand Tour (continuation of last year’s GSOC project) [DGSN-XX] Distributed Ground Station Network [COMT-XX] Comet Trails (supported by Institute of Space Systems, Stuttgart University) [SNET-XX] Sensor Networks (supported by RadioPunks) [DEOP-XX] Dynamical Evolution of Protoplanets

    GSOC is an annual coding campaign, in which Google awards stipends (of US$5500) to selected students who work on free and open-source software projects for certain organizations during the summer. This year it is Google’s 10th Summer of Code. It will be bigger and better! With this years 190 organizations, it tops last year’s 177 open source projects and organizations who took part and mentored 1,192 students and their projects. In general, GSOC is open for students aged 18 and older. It offers diverse projects ranging from software development for Wikipedia and Linux operating systems, to mobile platforms, to firmware and also academic work on basic algorithms. People can also mentor emerging developers during their three months of work and provide support and personal help. (some background information on Wikipedia) On a private remark about GSOC 2013, was lucky to have been selected as an organization and mentoring three students. This was an “awesome and motivating” experience and we advise projects and students alike to visit GSOC 2014 website and apply! You can find our information and ideas via During GSOC 2013, we mentored 3 students who coded open-source space application. So this is your chance to combine three things you like during summer: space, programming and money. Of course Google looks for talented programmers like you! Being a mentor is inspiring because you support great students and great space projects. Mentors are also invited to Google HQ in Mountain View (paid flight) to the mentors summit and get a tour. This is rewarding in many ways to be part of such a great campaign! You, as a mentor or student, can propose and let your space project ideas be realized! So if you have coding ideas for your project, you can propose them to us and we will announce them on our ideas page to the coding GSOC students. Here is your chance to find further helping hands. landing page gsoc2014.png.pagespeed.ce.t4C4svuO G Alle BOINC Projektnews

  • SAT@home: First result in the experiment for Bivium
    24.02.2014 05:56 Uhr
    First result in the current experiment was obtained by Retupmoc and dimawalker.

    Первые результаты текущего эксперимента были получены Retupmoc и dimawalker
  • yoyo@home: OddWeirdSearch continues
    22.02.2014 23:00 Uhr
    I released some workunits for Linux 64 systems as test. We now attack a range up to 1028.
  • GPUGRID: Achievement: GPUGRID first project worldwide in boinc
    20.02.2014 23:56 Uhr
    At least yesterday GPUGRID was the first project worldwide according to BOINCSTATS. Just a note to thank all the crunchers for contributing to our research. gdf
  • Collatz Conjecture: Variable Sized Wokunits & New CPU Applications
    20.02.2014 20:32 Uhr
    I have implemented BOINC’s multi-size workunits which adjusts the size of the workunit to the speed of the processor. The workunits are all named solo_collatz but there will be 4 different sizes. The smallest will be the size of that the mini_collatz workunits used to be. The largest will remain the size of the original collatz and solo_collatz workunits or 8 times the size of the smallest. There are also intermediate sizes which are 25% and 50% of the size of the largest. You can think of it as mini, small, medium, and large or 100 billion, 200 bilion, 400 billion and 800 billion numbers per workunit. That also means that even though the workinit name is solo_collatz, the credit awarded is directly proportional to the work done. The mini workunit does 1/8th the work and is awarded 1/8th the credit. The smaller size workunits allows me to release non-OpenCL versions of the CPU applications which use a single core/processor per workunit just like the old mini_collatz CPU applications. Lastly, there still seems to be an issue with multiple venues and plan class choices. A fix will be put in place as soon as I figure out why it isn’t working properly.
  • WEP-M+2 Project: 12-digit factor of P2203 has now been found by the project…
    19.02.2014 11:53 Uhr
    …46260 times
  • EDGeS@Home: Server maintenance
    19.02.2014 10:00 Uhr
    We are planning to migrate our database to another server on Thu, Feb 20, 2014. This will cause outages in our service between 8:00 AM and 5:00 PM UTC. Thank you for your patience.
  • Collatz Conjecture: Solo Collatz Brook+/CAL (a.k.a. ATI) Applications Released for Windows
    19.02.2014 04:51 Uhr
    The Brook+/CAL application, otherwise known as plan class “ATI14″, are now available for Windows and Windows 64. They are based on the 2.09 applications, but with the additional solo_collatz verification added. They utilize the same command line settings as the Collatz v2.09 ATI applications. Anyone with an AMD HD 2400 or later GPU can once again participate. In addition, those with AMD OpenCL compatible GPUs can choose via their preferences whether to run the ATI14 apps, the OpenCL AMD apps, or both. Recent AMD video drivers, especially those installed for Windows 8 and even some for Windows 7, may not install the necessary CAL DLLs and therefore cannot run the Brook+/CAL application. Try as I might to manually install them, I had to downgrade a laptop with an ATI Mobility HD 3200 GPU from Windows 8.1 to Windows 7 and also install an older version of the AMD video drivers in order to even test the solo_collatz Brook+/CAL application. Given that Brook+ has not been supported by AMD for a number of years and new AMD GPU hardware cannot run CAL applications, it is not all that surprising. So, if you have an older AMD Radeon HD series GPU that cannot run OpenCL applications and you want to continue to use it to run ATI applications with Collatz or other BOINC projects, you may want to avoid future AMD video driver upgrades.
  • yoyo@home: OGR-27: Finished
    18.02.2014 23:00 Uhr
    After 1,821 days we finished the OGR-27 project. All stubs were computed at least twice. The Boinc part of this project computed more than 5% of all OGR-27 stubs. At the end we had a rate of 10%. Now the Boinc server delivers OGR-28 workunits. This is to discover the most optimal Golomb Ruler with 28 marks. We anticipate that it will take about as long as OGR-27 has. It has some features in common with OGR-27: some of the packets will be very large (up to 1500 Gnodes), and there are three stub spaces. We expect that the first two stub spaces will take about 90 days to complete. For the stats freaks among you, the number of stubs for each stubspace of OGR-28 is below: Stubspace 1: 115676 Stubspace 2: 5823649 Stubspace 3: 518152118 No new application is needed, since OGR-27 clients are ready for OGR-28. (from
  • Collatz Conjecture: Have your cake and eat it too!
    18.02.2014 00:34 Uhr
    While most people wanted only CUDA applications, some had some good reasons for using OpenCL applications which means it really can’t be one or the other. As a result, you can use whichever you want or even both by selecting your preferred plan class(es) for each venue. The Windows and Linux CUDA applications, both 32 and 64 bit, have been released so your preferences should take effect the next time your computer requests work. The default is that all plan classes are selected.

Autor: crille
Datum: Samstag, 7. Mai 2011 11:11
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