Memory problems

Author	Message
Dirk Broer Send message Joined: 5 Nov 21 Posts: 5 Credit: 152,500 RAC: 50	Message 70 - Posted: 6 Nov 2021, 16:02:02 UTC Last modified: 6 Nov 2021, 16:44:11 UTC Running eight instances on a hyper threading enabled quad core results in a 'corrupted size vs. prev_size in fastbins' error. This message comes from libc's malloc, realloc, or free, and appears to indicate either a bug in libc or memory corruption, according to here. The machine in question has 32 GB of RAM (4GB per thread) and uses libc 2.31 ID: 70 · Rating: 0 · rate: / Reply Quote

Rysiu Project administrator Project developer Project tester Project scientist Send message Joined: 29 Oct 21 Posts: 59 Credit: 10,300 RAC: 0	Message 77 - Posted: 7 Nov 2021, 20:32:25 UTC The problem with memory allocation is known to us and we are working on a solution to this problem. ID: 77 · Rating: 0 · rate: / Reply Quote

McShane of TSBT Send message Joined: 30 Nov 21 Posts: 6 Credit: 5,146,600 RAC: 0	Message 126 - Posted: 30 Nov 2021, 21:06:04 UTC I am running an AMD Ryzen threadripper x3980 64 Cote 128thread machine with 64 Mb RAM. Is it normal that I can only run 54 threads and the rest waiting for memory? ID: 126 · Rating: 0 · rate: / Reply Quote

mmonnin Send message Joined: 2 Nov 21 Posts: 10 Credit: 5,550,790 RAC: 43,862	Message 127 - Posted: 1 Dec 2021, 1:05:04 UTC You have ~500mb per thread while each takes 307mb for me in Linux. Minus OS, GPU, other stuff and BOINC setting to not use all 100%, then yeah. Normal. ID: 127 · Rating: 0 · rate: / Reply Quote

McShane of TSBT Send message Joined: 30 Nov 21 Posts: 6 Credit: 5,146,600 RAC: 0	Message 128 - Posted: 1 Dec 2021, 2:48:27 UTC - in response to Message 127. You have ~500mb per thread while each takes 307mb for me in Linux. Minus OS, GPU, other stuff and BOINC setting to not use all 100%, then yeah. Normal. So, the answer seems to be to run only about a third of your available cores or just one or two project thread using app_config.xml. The trouble is that I bet most users have no idea how to set up an app_config. What a waste of resources... ID: 128 · Rating: 0 · rate: / Reply Quote

mmonnin Send message Joined: 2 Nov 21 Posts: 10 Credit: 5,550,790 RAC: 43,862	Message 130 - Posted: 2 Dec 2021, 0:16:44 UTC Or more memory. I try to have 1-2GB per thread for BOINC because many apps do require even more memory than 307mb. ID: 130 · Rating: 0 · rate: / Reply Quote

McShane of TSBT Send message Joined: 30 Nov 21 Posts: 6 Credit: 5,146,600 RAC: 0	Message 132 - Posted: 3 Dec 2021, 9:26:00 UTC My current configuration: 128 thread machine with 64Gb of RAM. I am only able to run 39 iThena threads, the rest are waiting for memory, and that is the only project that I am running. How do I tell iThena to run only 39 threads, so that I can use the other 89 threads for other projects. ? ID: 132 · Rating: 0 · rate: / Reply Quote

kotenok2000 Send message Joined: 7 Nov 21 Posts: 17 Credit: 68,000 RAC: 573	Message 137 - Posted: 14 Dec 2021, 21:11:16 UTC - in response to Message 132. <app_config> <app> <name>ithena_graph</name> <max_concurrent>39</max_concurrent> </app> </app_config> ID: 137 · Rating: 0 · rate: / Reply Quote