- BOINC: BOINC 7.4.42 released for Windows and Mac
31.07.2015 14:35 Uhr
I have removed BOINC from the computers in question and all are booting fine. I will try this new release. Thanks!
- Constellation: Server down for reinstall & relocation
26.07.2015 13:51 Uhr
The server will go down for a reinstallation on a new hardware and moving the server into a new datacenter. We’re back in about 2 weeks.
- MilkyWay@Home: Fix for stderr.txt Truncation and Validation Errors
23.07.2015 12:49 Uhr
BOINC has released a new version of the BOINC client (7.6.6) which fixes a known bug causing ~3% validation errors on MilkyWay@home and other projects. Please update your clients soon to fix this issue. For more info please see my thread in number crunching here.
- Quake-Catcher Network Sensor Monitoring: If You're Having Trouble Connecting Since the Big Move to CalTech….
23.07.2015 12:09 Uhr
Some people are having trouble connecting — this is probably due to the operating system (it seems to mostly be a Windows problem) caching the old qcn.stanford addresses, and not liking the forwarding to qcn.caltech (probably a “safety feature” in Windows). You can try doing a “Reset Project” in the BOINC Manager program to see if that will correct things. If not, you may have to do a more drastic “Remove Project” and then “Attach Project” to our new URL: http://qcn.caltech.edu/sensor You may want to first go to the “Your Account” page at the website to make sure you know which email address you used, and find/recover your password information as you will need this to login again.
- climateprediction.net: Weather@home 2015 Western US Drought: All models have been sent out, about half have come back
23.07.2015 11:01 Uhr
So, thanks to the fantastic efforts of our volunteers, all 22,000 models for this experiment have now been downloaded to run on people’s home computers, and nearly half have finished running and have been uploaded back to our servers.
The plots for the results so far have been updated to include all the models that have been returned to us – currently sitting at nearly 8,000 models!
Thanks again to everyone who has helped us with this experiment by running our models on your computer, we couldn’t do this without you.
There are 3 plots for each state, here’s one of them showing temperature in California:
- Moo! Wrapper: Fresh work available! Come get yours!
22.07.2015 18:48 Uhr
Keymaster is back online, at least temporarily pending more hardware replacements, so we are now generating fresh work for your hungry computers. Come get some and get your crunch on!
Thanks for your patience and understanding during this extended work outage due to upstream keymaster hardware failure.
- yoyo@home: OGR: new work available
21.07.2015 22:00 Uhr
The distributed.net central key master is back online and our personal proxy fills with stubs. The workunit generator is now able to produce fresh OGR workunits.
- theSkyNet POGS – the PS1 Optical Galaxy Survey: Run out of Galaxies
21.07.2015 00:06 Uhr
We’ve run out of galaxies to process at the moment. More are on the way.
- SETI@home: Big boost for SETI@home from Yuri Milner's Breakthrough Listen Initiative
20.07.2015 15:01 Uhr
SETI@home and Berkeley SETI Research Center are proud to be participating in the new Breakthrough Listen initiative, that will dramatically expand the search for life beyond Earth. http://nyti.ms/1KfWuYF
- WEP-M+2 Project: 12-digit factor of P2203 has now been found by the project…
19.07.2015 10:52 Uhr
- Quake-Catcher Network Sensor Monitoring: QCN Move to CalTech Is Completed 16 July 2015
17.07.2015 03:47 Uhr
The move of the QCN project from Stanford to Caltech seems to have gone smoothly. Thanks to all involved at Stanford Earth Sciences and Caltech GPS for making this transition possible. There may be kinks to iron out over the next few days; but the project seems to be back up and running. You do not have to do anything on your BOINC account – as the QCN addresses/URLs are being forwarded automatically from Stanford to Caltech.
- World Community Grid News: Unlocking new potential for improving access to clean water
16.07.2015 10:31 Uhr
An exciting video about the recent Computing for Clean Water breakthrough.
- yoyo@home: OGR: Out Of Work
15.07.2015 22:00 Uhr
The distributed.net central key master has a hardware problem since 9. of July. No new OGR stubs are submitted any more. In the last days I still had stubs in my personal proxy which is used to generate Boinc workunits. But now my personal proxy is also empty. There will be no new workunits generated until the central key master comes back online.See also bovines blog posting.
- NFS@Home: New 15e number queued
15.07.2015 20:52 Uhr
A new C182 (the XYYXF number with the highest GNFS:SNFS difficulty ratio) is queued up on 15e; thanks to ChristianB for using two weeks of GPU time on his GeForce 750Ti to do the polynomial selection. 2340_742 will start linear algebra tomorrow.
- climateprediction.net: New Climatology Results for Western US Drought Experiment
15.07.2015 09:49 Uhr
We now have the first results for our Climatological simulations, investigating the influence of removing the ‘blob’ of warm sea surface temperatures off the western US coast.
The ‘blob’ has a strong influence on the temperature, for example the climatological simulations without the ‘blob’ are colder than the actual or natural simulations.
In the climatological simulations, it is interesting to see a different response in the precipitation between the different states. This is something our scientists will be investigating in more detail in the upcoming weeks.
There are 3 plots for each state, here’s one of them showing temperature in California. The experiment is looking at two possible influences on the drought in the Western US – climate change and the “blob”. In the plot below, there are 3 sets of data:
- “Actual” – these are models that use observed data to simulate the climate
- “Natural” – these are models that show a “world that might have been without climate change”
- “Climatology” – these are models that include climate change, as observed, but have removed the “blob”
There are still a few thousand models left to run, so please do sign up if you haven’t already, and help us answer this fascinating and important question!
Read more about the experiment setup.
See all the results so far for individual states here:
- SETI@home: David Anderson interview
14.07.2015 20:02 Uhr
David Anderson, co-creator of SETI@home and Director of BOINC, took some time to chat with us recently.
- World Community Grid News: Security upgrade, Monday, July 20, 2015
14.07.2015 01:46 Uhr
We will be updating our security certificates on Monday, July 20th, 2015. Volunteers using older versions of the software may need to upgrade.
- Cosmology@Home: Stats about Cosmology@Home
13.07.2015 00:00 Uhr
A new post containing statistics about Cosmology@Home users. Discussion here.
- World Community Grid News: Exceptional early results in the fight against Leishmaniasis
12.07.2015 17:42 Uhr
The Drug Search for Leishmaniasis team has completed in vitro lab testing of the 10 top-rated compounds identified during screening, and have found that 4 of those 10 have very interesting properties that could point the way to new therapies. The post-processing of results continues, with the hope of identifying even more promising compounds for future lab and in vivo testing.
- Moo! Wrapper: Out of work
12.07.2015 11:40 Uhr
There’s no more work available at the moment due to the distributed.net keymaster hardware failure. Our local cache was just also depleted, which lasted for about two days. So let’s finish what we have and then move on to backup projects (yes, they are always good idea to have) while we wait for the distributed.net staff to repair keymaster. Rest assured, they are working hard to get the keymaster back up. As soon as that happens, we’ll get fresh work out for our hungry systems to crunch.
For more details and latest developments, please read http://blogs.distributed.net/. Thanks for your patience!
- Moo! Wrapper: Disk maintenance and work generation woes
10.07.2015 18:44 Uhr
Project was down today between 18:00 and 21:30 EEST (that’s from 15:00 UTC/7:00 PST to 18:30 UTC/11:30 PST) for about 3 and half hours while the previously failing disk was swapped with a backup disk and data was copied over. Now the project is running from a disk that’s not showing signs of collapsing due to read errors. The backup disk is as old as the failed disk but hasn’t had that much use so it should last until the project server is migrated to a new server with SSD disks later this year.
This happened a bit unannounced as I took advantage of the D.net keymaster problems that seems to slow down our work generation for some reason. That’s also the why we run out of work before the maintenance and why we still don’t have full work buffers. Hopefully that will fix itself once the keymaster is back in action. In any case, our local proxy will eventually run out of work unless the keymaster will be resurrected.
For more information about the keymaster failure, please read http://blogs.distributed.net/2015/07/10/04/28/bovine/. Thanks and happy crunching once the dust settles!
- climateprediction.net: Update: Heatwave Twice as Likely Due to Climate Change
09.07.2015 14:25 Uhr
A team of international scientists says that it is virtually certain that the heat wave that stretched across much of Europe in early July was more likely to happen now than in the past due to climate change.
Based on the synthesis of two independent peer-reviewed approaches, they conclude that heat waves like this now occur twice as often over a large part of Europe, and four times more often in some of the hottest cities. The results are a part of the developing field of “weather attribution” that uses observational weather and climate data, weather forecasts and climate models.
In recent years, more and more “event attribution analyses” have appeared in the scientific literature (see 2014 BAMS Special Report). This current analysis however, was conducted in real-time, providing results as the heat wave unfolded, but is still based on peer-reviewed scientific methods.
As we reported last week, for this ongoing heat wave in Europe, Climate Central convened an international team of scientists from Oxford University, KNMI, Red Cross Red Crescent Climate Centre, along with regional partners from CNRS (France), DWD (Germany), and MeteoSwiss. They produced a preliminary analysis of the annual maximum of 3-day maximum temperature based on observations up to July 1 and forecasts up to July 5.
It is important to note the difference in results between the first phase of this analysis and the updated version using observations. The increases in likelihood are in good overall agreement for each of the 5 cities. Return time agreement was also good for the stations in the west where the majority of the heat wave had already occurred (i.e., Madrid) or was occurring (i.e., De Bilt). However, the return times changed substantially in the eastern stations where the peak of the heat wave was up to five days into the future (at the time the first analysis was done). The following table below shows how the forecast temperatures for each city verified with observations:
3-day Observed/Forecast Maximum Temperatures and 3-Day Observed Maximum Temperatures
3-day Max obs/fx (July 2) Date 3-day max obs (July 7) Date
De Bilt 31.9°C July 2-4 31.8°C July 1-3 Madrid (diff. station) 39.6°C June 28-30 Mannheim 37.0°C July 2-4 38.0°C July 3-5 Beauvais-Tille n/a n/a 33.2°C July 1-3 Zurich 35.4°C July 4-6 34.0°C July 3-5
Now, that analysis has been redone using observations up to July 6, by which time the heat wave had subsided over most of Europe. The scientists used two independent methods in this analysis, allowing for high confidence in the results. In one method, a statistical analysis of observational records was performed (using the KNMI Climate Explorer) to compare this summer’s heat with summers during the early part of the century, before global warming played a significant role in our climate. This detects trends but cannot attribute the causes.
The second method, conducted by our researchers in Oxford, uses a large computing network (weather@home) to simulate the likelihood of seeing days as hot as those Europe has been experiencing over the past week. At the same time, we also simulated a summer without human-influenced climate change. Comparing those two “worlds,” we found that in the 5 cities analysed, the current conditions are now at least twice as likely due to climate change. The model does not include the urban effects that are accounted for in the methodology based on observations of urban stations.
“The regional weather@home model serves as a nice way to do an independent check on the observational analysis,” said Oxford’s team lead Friederike Otto. “Think of the combined results as a good first step towards answering the climate question.” In this case the Oxford team was a bit limited because the observed sea surface temperatures that drive the model are not yet available. Instead, the summer of 2014 was used as a proxy. The team felt the choice was solid because the influence of the exact sea surface temperatures on summer temperatures in Europe is small compared to the overall effect of global warming.
The results were:
- In De Bilt, the trend analysis of the observational data shows that a 3-day period as hot as experienced over this past week is now more than 4 times more likely to occur than it was around 1900. Using the weather@home model, scientists estimate that climate change has made the observed heat wave almost two times more likely to occur. This means that what would be a 1-in-7 year event in the world without climate change is now a 1-in-4 year event.
- In Madrid, using the weather@home model, we estimate that climate change has made the observed heat wave 5 times more likely to occur. Said differently, what was once a 1-in-100 year event in the world without climate change, is now a 1- in 20-year event.
- In Mannheim, the trend analysis of the observational data shows that the heat wave was a rare event even in the current climate. A 3-day period as hot as experienced over the past week should occur roughly every 30 years now, but, using the weather@home model, we estimate that climate change has made it almost 4 times more likely to occur.
- In Beauvais-Tille (a town 80 km north of Paris, far beyond the suburbs with a good series of observations without urban effects), the trend analysis of the observational data shows that an event like the 2015 heat wave is now expected every three years. Using the weather@home model, we estimate that climate change has made the observed heat wave 25% more likely to occur.
- In Zürich, the trend analysis of the observational data shows that a 3-day period as hot as experienced over the past week is expected nowadays every 15 years or so. This is more than 2.5 times more likely than it was around 1900. Using the weather@home model, we estimate that climate change has made the observed heat wave about 3 times more likely to occur. What would have been a 1-in-40 year event in a world without climate change is now a 1- in- 15 -year event.
Read more on the Climate Central website:
Read Nature’s coverage of this story:
- Collatz Conjecture: New Linux 64-bit CUDA App
08.07.2015 16:30 Uhr
I built a new Linux 64-bit app (version 6.07) which uses CUDA 5.5 and __should__ be statically linked. Hopefully, this will eliminate the glibc errors some have seen. This version also includes the bug fix for CPU validation not matching the GPU results. Once I see valid results for this version, I will build and add the 32-bit CUDA for Linux versions.
- Leiden Classical: Project News 8 july 2015
07.07.2015 22:00 Uhr
During the following months this project will stop supporting FreeBSD and Apple Mac (Intel and PowerPC) binaries and switch to boinc binaries without a screen saver.
- Quake-Catcher Network Sensor Monitoring: QCN Move To CalTech Starting 7/13/2015
07.07.2015 16:51 Uhr
The QCN servers will be packed up at Stanford next Monday (July 13th) and FedEx’d overnight to CalTech. It is hoped that by the end of next week the servers will be online at CalTech and the project will begin running again. We are forwarding our Internet DNS from Stanford to CalTech so that machines connected to “qcn.stanford.edu” will be routed to the new server location automatically (probably qcn.caltech.edu). More information will be sent once things are back up and running – but it’s most likely the project will be down the week of July 13th. You shouldn’t have to do anything – BOINC will automatically connect once it detects the servers are back up.
- climateprediction.net: Preliminary Results for Western US Drought – 607 Models
07.07.2015 15:25 Uhr
We sent out the first models to our volunteers last week and so far we’ve had 607 returned to us – here are some plots using those initial models.
Eventually, we will be running over 20,000 models, so we will add these to the plots as they come in – keep an eye on our results page where we’ll be posting updated plots regularly.
We still have many simulations ready for people to run, so if you are not running our models already, please consider signing up!
The “climatology” results, that look at the possible effect of the “blob” on the drought, are not ready yet so we’re just showing you the “actual” (world with climate change) and “natural” (world that might have been without climate change) experiments.
For an explanation of the 3 different sets of models we’re running, read the Experimental Setup page.
For an explanation of what these plots are showing, read the Return Time Plots page.
We have 3 plots for each of the 3 states we’re looking at, but as an example, here’s temperature for California:
You can see the full plots (so far) for precipitation, snow and temperature on the individual results pages for each State:
- Collatz Conjecture: New Windows CUDA and OpenCL Versions Released
07.07.2015 15:13 Uhr
CUDA version 6.06 and OpenCL version 6.08 were released for Windows today. The CUDA version fixes (I hope) a “device not ready” bug seen by some fast GPUs. While I could not duplicate the error, the code now waits for the events to synchronize which should eliminate the error. The OpenCL version, 6.08, now includes the bug fix where the GPU and CPU results were not always matching. It uses several of the optimizations Sosirus has provided and includes a new “lut_size” configuration option which now defaults to 12 (4096 items). The previous version used a 2^20 sized lookup table which did not fit into the GPU’s cache causing it to be memory rather than processor bound. So, you should see a higher GPU utilization with the new version and it should not be as dependent upon memory speed as the previous versions. Linux and OS X versions with the same fixes will follow soon. As usual, let me know if you have any issues with the new versions.
- theSkyNet POGS – the PS1 Optical Galaxy Survey: Debugging Size Classes Take II
07.07.2015 03:35 Uhr
Just a quick heads up – David Anderson (the guy who wrote most of the BOINC server) from Berkeley is currently having another crack at debugging the size class problem we have.
- SETI@home: Matt Lebofsky on hacking your job, and managing SETI data
06.07.2015 18:29 Uhr
Developer Matt Lebofsky is key to keeping SETI@home software & databases running. Check out our latest video profile of one of the guys who sends you your work units.
- World Community Grid News: Enhancing the potential for nanotechnology to improve access to clean water for millions
06.07.2015 04:23 Uhr
The Computing for Clean Water team has discovered how water can pass through tiny carbon nanotubes much more easily than previously predicted. This groundbreaking understanding of a fundamental physical process holds potential for improving access to clean water for millions through more efficient water filtration and desalination, as well as possible applications in clean energy and medicine. This discovery has been published in Nature Nanotechnology, the world’s most prestigious nanotechnology journal.