Restricting CPUs per Work Unit

I know I've seen this somewhere but I just can't find it, so apologies in advance.

I want MW@H to use no more than, say, 5 of my 12 CPU threads, and I know I have to set a value in a config file in the project's directory, but what, and which file? I don't want to apply the same restriction to all 8 of my projects.

---

Rgds
Peter.

It is an "app_config.xml" file, placed in the project directory. This one is set up for 2 CPU cores per work unit, and a maximum of 3 work units. Also, the "fraction_done_exact" entry improves the accuracy of the estimated time.

<app_config>
<app>
<name>milkyway_nbody</name>
<max_concurrent>3</max_concurrent>
<fraction_done_exact/>
</app>
<app_version>
<app_name>milkyway_nbody</app_name>
<plan_class>mt</plan_class>
<avg_ncpus>2</avg_ncpus>
</app_version>
</app_config>

Note that you need to read the file to activate it. One way is to restart BOINC, or reboot, or use "Read config files" in the BOINC Options menu.

That's what I needed to know - thank you.

Wouldn't it be good if there were a central place where all the config options were documented.

---

Rgds
Peter.

Have a look at https://boinc.berkeley.edu/wiki/Client_configuration

It doesn't provide lots of examples(!) but there's a lot of information there.

Cheers - Al.