Sunday, November 25, 2012

Top 1000 Titanic Prime discovered with PrimeGrid

"Congratulations! Our records indicate that a computer registered by you has found a unique prime number. This computer is running BOINC, is attached to the PrimeGrid project, and is assigned to the Sophie Germain Prime Search. What makes this prime unique is that it's large enough to enter the Top 5000 List in Chris Caldwell's The Largest Known Primes Database.
Since you have auto-reporting selected, the following prime was submitted on your behalf:
Added 110130 : 180160106877*2^1290000+1 (388340 digits)"

Friday, May 11, 2012

Long over-due update...

I have actually acquired some new hardware for the "farm". There is an Intel Xeon E3120@3.1GHz  with 8gigs RAM and a solid state drive. This machine is running 64-bit Ubuntu 12.04LTS with SSSE3 optimized SETI application.
The second machine is an Intel Pentium G850@2.9Ghz with 4gigs of RAM running 64-bit Windows 7. At this stage, its still running the stock applications.
I am still concentrating on SETI@Home but am still doing a bit of Collatz and QMC (about 10%).
Some of the older machines will be retired in a month or two.

Monday, January 2, 2012

2 million map tiles!

I have finally reached the 2 million map tiles benchmark with TilesAtHome for OpenStreetMaps (www.osm.org)

Saturday, December 31, 2011

End of 2011

The "farm" has been shut down for the Christmas break (as of 23 Dec), so the accumulation of credit has ground to a halt. I am still concentrating almost exclusively on SETI@Home with Collatz running on my one ATI card as I cant find a Linux/ATI app for SETI.
I have been running TilesAtHome for the OpenStreetMap project again and am just short of having rendered 2 million map tiles. I may reach that milestone by midnight if there are no unexpected glitches. There have been occasions where the tilesGen app uses massive amounts of memory which causes a massive swap file to be created and this hammers the RAID array until something breaks. I have seen a complete reboot as a result of this happening.
I have restricted the "complexity" that my system will accept but this does not seem to entire resolve the problem...

Friday, November 4, 2011

SETI over 1million

Well, its taken since 1999 to get to the 1 million mark!
Based on the fact that my average daily credit average has fallen from over 50k with a mix of projects to under 10k with everything on SETI@home ... I can kinda see why it took so long to get there!

Thursday, October 27, 2011

Change of focus!

My aging collection of PC hardware is steadily falling back through the ranks these days and I find it a bit depressing to watch world ranking/country rank & team rank all erode. I have decided to go back to the project that started it all for me ... seti@home. I was surprised to see that I haven't even hit the 1 million mark in this project despite the years involved. From now on, most my resources will be concentrating on seti@home. I will obviously still remain attached to the other projects to ensure that I still get work while seti@home is down and due to the fact that I have some hardware that I can't get seti@home to run on (e.g. an ATI card under Linux).

My first step was to get my desktop (AMD X2 & nVidia GT9800) to run both CPU and GPU work units. It took a while and a few restarts but I got the app_info.xml file working eventually.


Thursday, September 1, 2011

Power supply puzzle

I had two power supplies die within 6 hours of each other last week. The strange thing is that the machines had nothing in common (except OS). They were different ages, different MB manufacturers, different PSU makes and about 6km away from each other.
Thankfully, only two decided to give up the ghost ... so everything is now fixed and running again.
The 26 million cobblestone mark went trundling by sometime yesterday. My 'ol Nvidia 9800GT is still delivering some useful credit on PrimeGrid :-)