This post will be about Folding@home. If you don’t know what Folding@home is, please read https://tomasz.jarosik.online/2020/03/donate-computing-power-for-covid-19-research/ first.
Big thank you to everyone who joined team 255025 ( https://stats.foldingathome.org/team/255025 ). The team generated almost 13 million points so far. Points try to reflect scientific value. And you can earn bonus points if you return yours WUs (Working Units) reliably and quickly. To earn them please use PassKey:
https://foldingathome.org/support/faq/points/passkey/

Getting your own PassKey
Please go to https://apps.foldingathome.org/getpasskey and fill your username. You will receive your passkey via email. Now just put it in the web interface by clicking “Change Identity. Don’t worry if you see zero points after entering pass key. It’s expected as web control will now show point per username/passkey instead of cumulative per username.


Troubleshooting
I sometimes notice that Folding@home client is taking way too much time to process work unit. For me, it was because simulation was crashing because of too many threads. Example logs below:
04:04:41:WU00:FS00:0xa7:Calling: mdrun -s frame18.tpr -o frame18.trr -x frame18.xtc -cpt 15 -nt 28
04:04:41:WU00:FS00:0xa7:Steps: first=9000000 total=500000
04:04:41:WU00:FS00:0xa7:ERROR:
04:04:41:WU00:FS00:0xa7:ERROR:-------------------------------------------------------
04:04:41:WU00:FS00:0xa7:ERROR:Program GROMACS, VERSION 5.0.4-20191026-456f0d636-unknown
04:04:41:WU00:FS00:0xa7:ERROR:Source code file: /host/debian-stable-64bit-core-a7-avx-release/gromacs-core/build/gromacs/src/gromacs/mdlib/domdec.c, line: 6902
04:04:41:WU00:FS00:0xa7:ERROR:
04:04:41:WU00:FS00:0xa7:ERROR:Fatal error:
04:04:41:WU00:FS00:0xa7:ERROR:There is no domain decomposition for 20 ranks that is compatible with the given box and a minimum cell size of 1.37225 nm
04:04:41:WU00:FS00:0xa7:ERROR:Change the number of ranks or mdrun option -rcon or -dds or your LINCS settings
04:04:41:WU00:FS00:0xa7:ERROR:Look in the log file for details on the domain decomposition
04:04:41:WU00:FS00:0xa7:ERROR:For more information and tips for troubleshooting, please check the GROMACS
04:04:41:WU00:FS00:0xa7:ERROR:website at http://www.gromacs.org/Documentation/Errors
04:04:41:WU00:FS00:0xa7:ERROR:-------------------------------------------------------
04:04:46:WU00:FS00:0xa7:WARNING:Unexpected exit() call
04:04:46:WU00:FS00:0xa7:WARNING:Unexpected exit from science code
How to fix the above error? The easiest way is to change number of threads via FahControl. And you can connect FahControl to other clients via network.

First, go to “Log” tab, and check why your computation is stuck (if it really is, or maybe it’s just very big?). Then:
1. Go to “Configure”
2. Select “Slots” tab
3. Edit “Cpu” from “Folding slots”
4. In my case, I needed to change from 28 to 14.
You can change it back later.