New Nbody Version 1.50
12 May 2015, 23:31:44 UTC
Hey all,
We have released a new version of Nbody. There are a few changes in this version. First and foremost, we changed the way dark and light matter in our model dwarf galaxy is assigned. Previously, we would have all the particles have the same mass and assign a certain number as dark or light, depending on the parameters of the simulation. This required a large number of bodies in order to get a good likelihood calculation. Now, we will have the same number of dark and light matter particles, but change the mass per light and dark matter particle in accordance to the parameters. This will allow us to lower the number of bodies from 50k to 20k, allowing for a much faster initialization and simulation run time.
Secondly, we have moved the assignment of dark and light matter from lua to c, which should also provide significant speed up in the run time.
Also, we fixed a number of bugs we found in the velocity assignment. All in all, a simulation should run at a fraction of the time previously. This will also hopefully fix the stalling issue some people have been having.
Finally, if you have any runs from the previously version, you can go ahead and abort them.
Since this is a new way of doing things, there may be some unforeseen issues. So, if there are any bugs let us know!

Source: Milkyway Website

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57,634,517 WUs
12 May 2015, 10:08:38 UTC
Damn that's big :)
It "should" work. For now I just created 10,000 WUs, to test the estimation.

Source: FiND@home Website

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Server up and working
12 May 2015 | 15:55:24 UTC
Yesterday and tonight we had a powercut. The sysadmin restarted the machine but he did not realize that apache was not running.
Now it should be all fine.

Source: GPUGRID Website

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The hard work of making discoveries useful
11 May 2015
Even as World Community Grid computations continue, the team behind the Clean Energy Project is busy improving their database structure, making their results more accessible to the wider scientific community, and authoring papers to disseminate the methodology behind the project. Also, look out for their new project website coming soon!
The last few months have been very busy for the Clean Energy Project (CEP) team - we have been writing grants and papers, and we have new undergraduates joining for the summer too!
New England Machine Learning Day on May 18th, alongside the work they have done on sampling methods, which could improve the number of high-performance molecules that projects like the CEP produce.
Kai has been working hard on putting together a new CEP website, which - whilst not ready for release quite yet - should be something exciting in the near future! The website will feature much more searching capacity (something made possible by the new database structure we have put in) and even more information about each molecule.
One of our new undergraduates, Wendy, has just received funding to work in the lab this summer and will use this new database structure as part of her summer project. She will be working on a diverse range of problems, one of which will be to allow users to search for molecules that are similar to a molecule they know; this is something we think will really aid researchers looking for new materials for organic photovoltaic (OPV) devices.
She will also be working with another of our new undergraduates, Claudia, on new ways to visualize the CEP data. Ed has worked with some experts in 3D rendering at Harvard to produce new animations that explain what the CEP is about; we are now looking to extend this idea into providing a new way to interact with the database.
Sadly, Gregor has now finished his Masters studies with us, and left to go back to the ETH in Zurich. Gregor’s work on new calibration methods was very successful. Ed is now putting two papers together based upon this work, one on the method, and one on the dataset which it was derived from. We will keep you posted on how they progress. Thank you for all your hard work Gregor - come visit us soon!
As ever, we are blown away by the support that all of you have given our project. We are so grateful for your continued support - we simply would not be able to do it without you!
Keep Crunching!!
Your Harvard CEP Team

Source: World Community Grid Website

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Shelley Wright: Is ET using infrared lasers to communicate?
11 May 2015, 17:16:48 UTC
Shelley Wright, a former postdoctoral scientist in the UC Berkeley Astronomy Department, and now faculty at the Dunlap Institute for Astronomy & Astrophysics at the University of Toronto, visited Berkeley SETI Research Center recently to talk about infrared and optical SETI, and how ET might be using huge lasers to communicate. Watch our four minute video interview at https://youtu.be/JoOkXhNUQO4

Source: SETI Website

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Server maintenance
11 May 2015, 6:27:19 UTC
There is going to be a bigger maintenance on 12.05.2015. It should start at 06:00 UTC and it will take probably 24 hours. New workunits will be added after the maintenance.

Source: Asteroids Website

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PRPNet May Challenge
11 May 2015 | 12:51:25 UTC
Top Gun Day is May 13th. Use as many Top Gun lines throughout the day as possible, wear aviator sunglasses and join us over at the Factorial prime search for the TOP GUN Challenge (May 13-27th). Should be a fun!
Discussion and more information can be found here: 2015 PRPNet May Challenge.
Good luck!

PPS Mega Prime!
11 May 2015 | 1:04:24 UTC
On 19 April 2015, 01:16:36 UTC, PrimeGrid’s Mega Prime Search found the Mega Prime:
197*2^3477399+1
The prime is 1,046,804 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 109th overall.
The discovery was made by Tom Greer (tng*) of the United States using an Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz with 16GB RAM running Microsoft Windows 7 Ultimate. This computer took about 3 hours 5 minutes to complete the primality test using LLR. Tom is a member of the Sicituradastra. team.
The prime was verified on 19 April 2015, 03:32:00 UTC, by Naoki Yoshioka (oevrtaker@biomaterial) of Japan using an Intel(R) Xeon(R) CPU E5-2687W 0 @ 3.10GHz with 64GB RAM running Microsoft Windows 8.1 Enterprise. This computer took about 1 hour and 32 minutes to complete the primality test using LLR. Naoki is a member of the Doshisha University team.
For more details, please see the official announcement.

Source: PrimeGrid Website

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Back Online
10 May 2015, 1:08:55 UTC
The MySQL database stopped responding for the second time in two days so while it was down, I took some time to do some database maintenance. I am hoping that will get it back to being stable again. Thanks for your patience.

Source: Collatz Conjecture Website

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New models on scientific results page
9 May 2015, 11:08:43 UTC
There are new models available on scientific results page. There are currently no users at the new models but they will be added soon.

Source: Asteroids Website

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A virtual screening pipeline for RNA World
7 May 2015, 11:52:42 UTC
After quite some work, only a few day ago, I successfully finished the local experiments and the compilation of a proper process / protocol documentation aiming at setting up a virtual screening pipeline within the RNA World framework.
One of the next steps will be the incorporation of the required new applications into our BOINC server infrastructure.
Of course, besides aiming at examining RNA-binding proteins, I am also (and in fact primarily) interested in using RNAs as target structures to find molecular binders that enhance/interfere with RNA functions.
Michael.

Source: RNA World Website

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