Hello Oskar.

The PPL is not using multithreading in its own computations.

I have worked on a (conditionally) thread-safe version of the library, which is available in the git branch "devel". The support for thread-safety needs to be enabled at configuration time (--enable-thread-safe). Beware that the standard allocation library may become a bottleneck, so that you may want to switch to TCMalloc.

See the following messages for a few hints about using PPL services from multiple threads:

http://www.cs.unipr.it/pipermail/ppl-devel/2016-September/019137.html

http://www.cs.unipr.it/pipermail/ppl-devel/2018-January/019187.html

Feel free to ask questions if you face problems.

Cheers, Enea.

On 09/12/19 23:15, Schneider, Oskar wrote:

Hello,

i want to know if ppl is using more than one core for convex hull calculations? If not is it possible to run 20 instances on a 20 core machine and compute 20 hulls in parallel or is the performance not good if too many instances run on the same machine?

Thank you very much.

Greetings,

Oskar _______________________________________________ PPL-devel mailing list PPL-devel@cs.unipr.it http://www.cs.unipr.it/mailman/listinfo/ppl-devel