Every time I turn off my computer or quit, all progress is lost

Author	Message
Michael Scott Send message Joined: 16 Oct 19 Posts: 6 Credit: 3,389,265 RAC: 0	Message 2023 - Posted: 8 Nov 2019, 6:32:23 UTC Hello, I have a very lengthy Collatz program running on my Mac Pro (dual quad core Xeon's, RX580) - the estimated time is at least 10 days. Whenever I quit BOINC (or restart) the paltry progress made resets to zero. In the preferences, I selected the option to keep non-GPU tasks in memory, however that hasn't helped matters. Any suggestions? ID: 2023 · Rating: 0 · rate: / Reply Quote

mikey Send message Joined: 11 Aug 09 Posts: 757 Credit: 22,098,172,711 RAC: 1,215,920	Message 2025 - Posted: 8 Nov 2019, 11:40:39 UTC - in response to Message 2023. Hello, I have a very lengthy Collatz program running on my Mac Pro (dual quad core Xeon's, RX580) - the estimated time is at least 10 days. Whenever I quit BOINC (or restart) the paltry progress made resets to zero. In the preferences, I selected the option to keep non-GPU tasks in memory, however that hasn't helped matters. Any suggestions? Collatz is more about gpu's than cpu's, yes you CAN use your cpu's here but why when your gpu easily gets over 10 times the credit in ALOT less time. For instance I also have a 580 and it's doing workunits in 726.31 seconds and getting 28,018.54 credits for it. ID: 2025 · Rating: 0 · rate: / Reply Quote

Michael Scott Send message Joined: 16 Oct 19 Posts: 6 Credit: 3,389,265 RAC: 0	Message 2026 - Posted: 8 Nov 2019, 14:40:57 UTC - in response to Message 2025. I only have one Collatz task running, and it doesn't appear to be using the GPU. But why does it always erase progress? ID: 2026 · Rating: 0 · rate: / Reply Quote

mikey Send message Joined: 11 Aug 09 Posts: 757 Credit: 22,098,172,711 RAC: 1,215,920	Message 2027 - Posted: 9 Nov 2019, 0:00:34 UTC - in response to Message 2026. I only have one Collatz task running, and it doesn't appear to be using the GPU. But why does it always erase progress? Because you haven't crunched enough to reach the checkpoint. If you switched to gpu tasks your RAC and total credits would go up exponentially!! If you are on a laptop though make sure you have a pad with fans underneath the laptop to keep it cool!! ID: 2027 · Rating: 0 · rate: / Reply Quote

Michael Scott Send message Joined: 16 Oct 19 Posts: 6 Credit: 3,389,265 RAC: 0	Message 2028 - Posted: 9 Nov 2019, 1:49:44 UTC - in response to Message 2027. I have a Mac Pro desktop. How do I switch to GPU tasks? ID: 2028 · Rating: 0 · rate: / Reply Quote

mikey Send message Joined: 11 Aug 09 Posts: 757 Credit: 22,098,172,711 RAC: 1,215,920	Message 2029 - Posted: 9 Nov 2019, 11:50:52 UTC - in response to Message 2028. I have a Mac Pro desktop. How do I switch to GPU tasks? Download and install the AMD drivers for your card from AMD.com and then in your settings uncheck get cpu tasks and enable get gpu tasks. Then since it's a desktop after you get your first workunit navigate over to the Boinc/projects/collatz directory and in the file that ends with config you put in these lines, with a text editor not a word processing program, and save the file: verbose=1 threads=8 kernels_per_reduction=64 sieve_size=30 lut_size=16 reduce_cpu=0 sleep=1 Those are optimization settings for the AMD 7970 that seem to work okay for the AMD 580 as well, they could probably use some tweaking but I haven't done that. With these settings you should only run one workunit at a time but they will run much faster starting with the very next workunit once you get them in there. ID: 2029 · Rating: 0 · rate: / Reply Quote

Michael Scott Send message Joined: 16 Oct 19 Posts: 6 Credit: 3,389,265 RAC: 0	Message 2030 - Posted: 9 Nov 2019, 18:53:56 UTC - in response to Message 2029. I should mention that I am only running OSX at the moment, so there are no drivers available for me. Is that why I am unable to select GPU tasks? ID: 2030 · Rating: 0 · rate: / Reply Quote

mikey Send message Joined: 11 Aug 09 Posts: 757 Credit: 22,098,172,711 RAC: 1,215,920	Message 2031 - Posted: 10 Nov 2019, 11:31:40 UTC - in response to Message 2030. I should mention that I am only running OSX at the moment, so there are no drivers available for me. Is that why I am unable to select GPU tasks? When you get to the select your driver model box scroll down further and there is a 'Mac graphics' selection then you choose your model Mac, see if that helps. https://www.amd.com/en/support ID: 2031 · Rating: 0 · rate: / Reply Quote

Michael Scott Send message Joined: 16 Oct 19 Posts: 6 Credit: 3,389,265 RAC: 0	Message 2033 - Posted: 11 Nov 2019, 2:31:48 UTC - in response to Message 2031. Nothing, unfortunately. ID: 2033 · Rating: 0 · rate: / Reply Quote

mikey Send message Joined: 11 Aug 09 Posts: 757 Credit: 22,098,172,711 RAC: 1,215,920	Message 2034 - Posted: 11 Nov 2019, 10:47:07 UTC - in response to Message 2033. Nothing, unfortunately. Do you use it on other projects? ID: 2034 · Rating: 0 · rate: / Reply Quote

Michael Scott Send message Joined: 16 Oct 19 Posts: 6 Credit: 3,389,265 RAC: 0	Message 2035 - Posted: 12 Nov 2019, 5:10:15 UTC - in response to Message 2034. Einstein and SETI report it as being used. ID: 2035 · Rating: 0 · rate: / Reply Quote

mikey Send message Joined: 11 Aug 09 Posts: 757 Credit: 22,098,172,711 RAC: 1,215,920	Message 2036 - Posted: 12 Nov 2019, 12:31:05 UTC - in response to Message 2035. Then it should work here too ID: 2036 · Rating: 0 · rate: / Reply Quote

Jack-Hiker Send message Joined: 3 Apr 16 Posts: 5 Credit: 184,806,404,276 RAC: 131,541,904	Message 2054 - Posted: 17 Nov 2019, 19:49:14 UTC - in response to Message 2023. Try suspending project before turning off and. Do not forget to resume project when back on. ID: 2054 · Rating: 0 · rate: / Reply Quote

kjohnson Send message Joined: 4 Jul 18 Posts: 8 Credit: 1,758,319,451 RAC: 28	Message 2161 - Posted: 10 Dec 2019, 19:18:13 UTC - in response to Message 2023. In preferences, how long is it set before writing checkpoints? I have mine at 900 seconds for 15 min checkpoints, not sure if that will help. ID: 2161 · Rating: 0 · rate: / Reply Quote

Matthew McCleary Send message Joined: 11 Oct 19 Posts: 22 Credit: 3,078,464,521 RAC: 1,511,537	Message 2171 - Posted: 11 Dec 2019, 16:45:23 UTC - in response to Message 2054. Try suspending project before turning off and. Do not forget to resume project when back on. I've confirmed this method works for me. I can suspend work, quit and relaunch BOINC Manager, and resume and Collatz work units resume where they left off. ID: 2171 · Rating: 0 · rate: / Reply Quote