Posts by boinc64

1) Message boards : Number crunching : Computer with rac of 173 and 3000+ tasks in progress ?? (Message 39928) Posted 25 May 2010 by boinc64 Post: Anyone understand this ? http://milkyway.cs.rpi.edu/milkyway/show_host_detail.php?hostid=171705
2) Message boards : Number crunching : 2x 5970 CrossfireX Stuck wus (Message 39774) Posted 17 May 2010 by boinc64 Post: Cards were working; but recently crossfirex gave issues. My recent tests show the second core of second card which is the latest in the system has been malfunctioned. It seems that there are issues with the second gpu of a 5970 giving incorrect results. See this thread on the AMD OpenCL forum, note the response of the AMD guy: http://forums.amd.com/forum/messageview.cfm?catid=390&threadid=128846
3) Message boards : Number crunching : Sudden mass of WU's finishing with Computation Error (Message 34138) Posted 3 Dec 2009 by boinc64 Post: Fitness is the result of the calculation, in your case the result is -1.#QNAN a quiet NaN (Not a Number) due to an error in the computation. For what can cause these things see : http://en.wikipedia.org/wiki/QNaN What the cause is in your case I haven't got a clue (hardware ?)