Think it will be not much harm to leave CPU flops only for current version.
----- Original Message ----- From: "David Anderson" <da...@ssl.berkeley.edu> To: "Pappa" <m...@geeksamazing.com> Cc: <boinc_dev@ssl.berkeley.edu>; <boinc_al...@ssl.berkeley.edu> Sent: Friday, December 18, 2009 2:16 AM Subject: Re: [boinc_alpha] Maximum time Exceeded on Hybrid ATI Astropulse app > We'll reduce the scheduler's FLOPS estimate. > Currently the estimate is (peak GPU FLOPS)/5. > Does anyone have a suggestion for what it should be? > Seems like it should reflect both CPU and GPU speed. > > -- David > > Pappa wrote: >> The other side effect that has not been fully explored, there were >> several >> machines that received over a hundred AP WU's to be errored out. The >> thought >> is if it can not determine a proper estimate of run time from the GPU >> flops >> and DCF. Only Quota will stop the runaway host. >> >> http://setiweb.ssl.berkeley.edu/beta/show_host_detail.php?hostid=42925 >> http://setiweb.ssl.berkeley.edu/beta/results.php?hostid=42925&offset=100&sho >> w_names=0&state=5 >> >> http://setiweb.ssl.berkeley.edu/beta/show_host_detail.php?hostid=40712 >> http://setiweb.ssl.berkeley.edu/beta/results.php?hostid=40712&offset=140&sho >> w_names=0&state=5 >> >> >> >> -----Original Message----- >> From: boinc_alpha-boun...@ssl.berkeley.edu >> [mailto:boinc_alpha-boun...@ssl.berkeley.edu] On Behalf Of Stephen >> Maclagan >> Sent: Thursday, December 17, 2009 1:23 PM >> To: boinc_al...@ssl.berkeley.edu >> Subject: [boinc_alpha] Maximum time Exceeded on Hybrid ATI Astropulse app >> >> Raistmer's Hybrid ATI Astropulse app has now made it to Seti Beta as a >> Stock >> app, it does only some of it's Calculations on the GPU, >> with most of it being done on the CPU, some CPU's have been historically >> poor at doing Astropulse because of their small L2 Caches, ie AMD chips, >> while the C2D with the Larger caches have been a lot faster, at moment we >> are starting to seeing some of the AMD's running into maximum time >> exceeded, >> because it'll be GPU flops that taken into account when the tasks get >> aborted, >> There's also an i7 920 with two HD5800's also running into maximum time >> exceeded as well, because it has the newest and fastest ATI cards out, >> while two other i7 920's with lower Spec GPU's can manage to finish the >> tasks O.K, >> >> This was cured in Boinc 6.10.14 with: >> >>> - client: if anonymous platform description (app_info.xml) doesn't >>> specify >> FLOPS for a GPU app, assume that it runs at CPU peak speed rather than >> GPU >> peak speed. Better to be conservative, otherwise job might be >aborted >> due >> to time limit exceeded. >> >> How can it be cured again, now the Hybrid ATI Astropulse app is no longer >> using an app_info? >> All the hosts getting aborted tasks are running 6.10.18, and most of the >> rest are 6.10.18 or newer. >> >> See this post for lots of info: >> http://setiweb.ssl.berkeley.edu/beta/forum_thread.php?id=1601&nowrap=true#38 >> 531 >> >> Claggy >> _______________________________________________ >> boinc_alpha mailing list >> boinc_al...@ssl.berkeley.edu >> http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_alpha >> To unsubscribe, visit the above URL and >> (near bottom of page) enter your email address. >> >> _______________________________________________ >> boinc_alpha mailing list >> boinc_al...@ssl.berkeley.edu >> http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_alpha >> To unsubscribe, visit the above URL and >> (near bottom of page) enter your email address. > > _______________________________________________ > boinc_alpha mailing list > boinc_al...@ssl.berkeley.edu > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_alpha > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. > _______________________________________________ boinc_dev mailing list boinc_dev@ssl.berkeley.edu http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev To unsubscribe, visit the above URL and (near bottom of page) enter your email address.
