Re: Parallel Guile code called from parallel C code

[ludo@gnu.org (Ludovic Courtès)]

Hi,

pablo <r@uzy.me> skribis:

> The Guile doc says "Internally, a fixed-size pool of threads is used
> to evaluate futures, (...) the pool contains one thread per available
> CPU core, minus one, to account for the main thread."
>
> Then how does this work in the situation I described? Do the two
> concurrent parallel Guile functions use threads from the same pool or
> is there actually two pool? (ie. does each C threads calling a Guile
> function have an independent Guile environment regarding the possible
> parallelization of the Guile function itself?)

There’s a single thread pool per Guile instance.  See ice-9/futures.scm:
there’s a global variable holding a list of threads, basically.

HTH,
Ludo’.