Posts by laviathan

21) Message boards : Cafe MilkyWay : Word Link IV (Message 29954) Posted 30 Aug 2009 by laviathan Post: 5-(4-butyl-2,3,5,6-tetrafluorophenyl)-1,1-dimethyl-2,4-pentadiyn-1-ol
22) Message boards : Number crunching : Server offline (Message 29934) Posted 30 Aug 2009 by laviathan Post: feeder milkyway Not Running transitioner milkyway Not Running milkyway_purge milkyway Not Running milkyway_av milkyway Not Running file_deleter milkyway Not Running Hope it's not a hardware failure :(
23) Message boards : Number crunching : A Tale of Two OS (Message 29932) Posted 30 Aug 2009 by laviathan Post: You are not meant to upgrade from 32 bit windows to a 64 bit version without a full wipe/reinstall. You can stop it 'nagging' by turning off User Account Control in Control Panel -> User Accounts. BOINC displaying 'running' on all GPU tasks is normal even though only {however many you set in config} will be actually running.
24) Message boards : Number crunching : Grunching (Message 29872) Posted 28 Aug 2009 by laviathan Post: I have noticed tonight (I have some spare time) that the new DE WU's are taking a lot longer. Maybe two or three minutes to do 4 simultaneously, where as the last 'type' of WU's were taking only 55-60 seconds. Also it seems they ALL give 74.24 credit now, whereas the last 'type' were giving ~35, ~50, or ~70 (I forget the precise values). Verstapp, have you experimented with your grunchers by changing the parameters to favor MW performance? There could be a few % gain which is always helpful.
25) Message boards : Number crunching : Grunching (Message 29869) Posted 28 Aug 2009 by laviathan Post: laviathan and verstapp, was that compared to stock MW CPU app, or the optimized one? I came to a factor of 29 when comparing GPU and CPU opti. app runtimes of my C2D E8500 and ATI 4870HD. BR, Compared to the standard auto-downloaded application with a standard version of boinc client.
26) Message boards : Number crunching : Grunching (Message 29865) Posted 28 Aug 2009 by laviathan Post: >106 times faster My [quite possibly much less scientific] calculations show my 4870 crunching ~60 times as fast as my i7 940 o/c'd to 3.4GHz That sounds close to what I would expect if I was to roughly guess your speed, if you had just told me your specifications. There are some issues with comparing systems using the CPU-equivalent comparison - for example, your system is probably running the ATI app with different settings. I have to have mine set so that I can have smooth GUI and 1080p video playback, at any time I require it, while the GPU's are grunching in the background. If you had the settings optimised for performance then your system would have that advantage over mine. Also things like (system) RAM performance may affect speed of CPU processing of MW WU's which would make the comparison a bit more complicated as well. (An expert on the workings of the CPU based MW application may correct me on that.) Based on the incredible performance gains from grunching, I have actually stopped running CPU based BOINC projects (as much) in an attempt to save some money on my next power bill... yet I am still pleased with my computers overall contribution to MW.
27) Message boards : Number crunching : Grunching (Message 29830) Posted 28 Aug 2009 by laviathan Post: I have done the math and worked out that my graphics card runs MilkyWay@home approximately 106 times faster than (the total output of) my quad core 9550 @3.4GHz. Grunching is therefore appealing.

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