Posts by Theadalus

1) Message boards : Number crunching : GPU version requirements for the search up to 10^20 (Message 1325) Posted 13 Dec 2019 by Theadalus Post: Presently the GPU workunits require 8GB memory. If you do not have enough RAM, you can increase the pagefile size and enable more pagefile usage in BOINC to compensate for the shortfall (this may require a restart of the system to take effect). Beware though that this will read and write an enormous amount of data. If you have a hard drive it will be unlikely to keep up and would be very taxing on it, and an SSD will incur a significant number of writes. On my system with a GTX 1650 and 8GB RAM, I had 28TBW over the month or so I ran Amicable Numbers tasks. Regards, Kellen Hi Kellen, Thanks for your reply. I increased swap size to 32GB; after using (almost) all system memory I see about 1.5GB of swap is used, then WU again errors (255: Unknown error code). For now I give up and move GPU's to different project, one which runs without any hassle... I don't understand why the GPU version uses that much system memory, as the CPU version uses much less (~ 2.8GB)...?
2) Message boards : Number crunching : GPU version requirements for the search up to 10^20 (Message 1321) Posted 10 Dec 2019 by Theadalus Post: Hi, Just wondering what the actual system requirements are... Today I added 2 machines (S3PC-S04 and S3PC-S25) to this project, both machines are running 1 GPU WU each, and seems to run out of memory; after about 30 secs to a minute, the WU gets status "Waiting for memory". Both machines have 8GB system memory, and running Ubuntu, which does not take much resources. Based on BOINC memory settings, the GPU application takes more then 6GB (75%) of system memory...? Ridiculous! If these are the real specifications, then application need some serious optimization/redesign, this is not workable.
3) Message boards : Number crunching : Missing Computers (Message 1290) Posted 2 Nov 2019 by Theadalus Post: Ok, so it is normal they are gone/deleted. :-P Never noticed this before. Thanx for quick response!
4) Message boards : Number crunching : Missing Computers (Message 1288) Posted 2 Nov 2019 by Theadalus Post: Hi, It's been a while since I participated in this project, last (real) activity was last week of May 2019. Apparently I missed something (searched message boards for related messages), but all my computers are gone (not showing in list 'Your Computers'), and yes I selected 'All computers'. E.g. hostid = 76055 (Amicable Numbers is still in BOINC client at this host). Probably I can re-add them (did not try), but to me it does not seem normal they are gone...? Greetz