Re: concurrent computation of a function

[Max Alekseyev <maxale@gmail.com>]

Hi Bill,

I'm also looking at using extern(). How can one perform necessary process control from inside the GP?

I'd like to perform the following actions:

* to run two other GP scripts with extern();

* get a result from whoever first produces it;

* kill the remaining GP rocess.

Does GP have a suitable functionality for that?

Regards,

Max

On Thu, Sep 19, 2024 at 4:22 PM Bill Allombert <Bill.Allombert@math.u-bordeaux.fr> wrote:

On Thu, Sep 19, 2024 at 03:25:32PM -0400, Max Alekseyev wrote:
> Using "seriesprecision" as a semaphore for communication between processes
> is a neat idea, but in my case one of the functions relies on integer
> factorization, which may or may not take a long time.
> I do not see how factor() function can be terminated if the other function
> signals it to end.
> Or is there a way?

Not without changing the C code.

If you are really desperate you can run each computation in a different
GP instances, using extern().

Cheers,
Bill