Re: [petsc-users] prevent linking to multithreaded BLAS?

Barry Smith <[email protected]> writes:

...

We could test at runtime whether child threads exist/are created when calling BLAS and deliver a warning.

How does one test for this? Some standard Unix API for checking this?

I'm not sure, the ids of child threads are in /proc/$pid/task/ and (when opened by a process) /proc/self/task/. See man procfs for details.