Difference between revisions of "Folding@home"

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(Configuration: addition for setting up folding with user privileges)
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* Slots for CPU or GPU
* Slots for CPU or GPU
  <slot id='0' type='CPU'/>
  <slot id='0' type='CPU'/>
=== Run f@h with user privileges ===
=== Run f@h with user privileges ===

Revision as of 07:00, 5 May 2017

From the project home page:

Help Stanford University scientists studying Alzheimer's, Huntington's, Parkinson's, and many cancers by simply running a piece of software on your computer. The problems we are trying to solve require so many calculations, we ask people to donate their unused computer power to crunch some of the numbers. In just 5 minutes... Add your computer to over 333,684 others around the world to form the world's largest distributed supercomputer.


Install the foldingathomeAUR package.


Run /opt/fah/FAHClient --configure as root to generate a configuration file at /opt/fah/config.xml (the Arch Linux team number is 45032). Alternately, you can write /opt/fah/config.xml by hand and use /opt/fah/sample-config.xml as a reference. With a config file in place, you can start the daemon, check its status, and make the daemon automatically start at boot time.

$ cd /opt/fah
# ./FAHClient --configure

Then start/enable the foldingathome.service systemd unit.

The graphical way

You can manage the daemon by opening a web browser and heading to http://localhost:7396/. Alternately, you can install fahcontrolAUR and use the FAHControl program.

The daemon can also be controlled remotely. Instructions for doing so are listed in /opt/fah/sample-config.xml. Remember to open firewall ports if necessary.

The terminal way

To see the current progress of foldingathome, simply $ tail /opt/fah/log.txt.

The behaviour of foldingathome can be customized by editing /opt/fah/config.xml. Some options that can be specified:

  • bigpackets, defines whether you will accept memory intensive work loads. If you have no problem with Folding@home using up more of your RAM, then set this to big. Other settings are normal and small.
  • passkey, to uniquely identify you. Though not needed, it provides some measure of security. For details, see [1]
<passkey v='passkey'/>
  • Slots for CPU or GPU
<slot id='0' type='CPU'/>

Run f@h with user privileges

It's not necessary to run folding with root privileges. To run it with your users privileges, grab FAHClient, FAHCoreWrapper and config.xml from foldingathomeAUR and copy them to user's path, e.g. /home/user/folding/. Create systemd service:

Description=Folding@Home V7 Client

ExecStart=/home/user/folding/FAHClient /home/user/folding/config.xml


Register and start service with

# systemctl daemon-reload
# systemctl start fahclient.service

You can configure the running client via UI with fahcontrolAUR.

Monitoring work-unit progress

There are several ways of monitoring the progress of your FAH clients, both on the command line and by GUI.

The FAHControl software distributed by folding at home provides you with efficient means to control remote hosts. Just add another client with the corresponding button "Add" and enter the name, ip address, port and password (if you set one) and hit save. The software should now try to establish a connection to the remote host and show you the progress in a seperate client tab.

In AUR there is fahmonAUR[broken link: archived in aur-mirror], which provides a GUI with the ability to watch multiple clients and get info on the work-unit itself. Fahmon has a dedicated site at http://www.fahmon.net/

On the CLI, you can add a command to your shell configuration file (e.g: .bashrc or .zshrc). Replace fah_user with the actual user first.

fahstat() {
        echo $(date)
        cat /opt/fah/fah_user/unitinfo.txt

Or for multiple clients :

 fahstat() {
         echo $(date)
         echo "Core 1:";cat /opt/fah/fah_user/unitinfo.txt
         echo "Core 2:";cat /opt/fah2/fah_user/unitinfo.txt

Also, replacing cat with tail -n1 will give just the percentage of work unit complete.

On foldingathome-smp 6.43, the unitinfo.txt file is not placed inside the user folder. The correct directory would be /opt/fah-smp/unitinfo.txt.

See also