Jorg,
When I ran this I got
Error: unbound variable: ##process#io-ports
Call history:
##sys#call-with-values
pthunk.scm:131: create-pipe
##sys#call-with-values
pthunk.scm:132: create-pipe
pthunk.scm:133: gc
pthunk.scm:134: process-fork
pthunk.scm:146: file-close
pthunk.scm:146: file-close
##sys#call-with-values
pthunk.scm:147: ##process#io-ports
Agree, I am a noob Schemer.
- Joe
On Wed, Dec 29, 2010 at 8:37 AM, Jörg F. Wittenberger <
[email protected]> wrote:
> Just got a few minutes off and was thinking: maybe you are a less
> experienced Schemer asking for a parallel map executed by subprocesses.
>
> Am Mittwoch, den 29.12.2010, 11:56 +0100 schrieb Jörg F. Wittenberger:
> > Maybe this is better for you?
> >
> > Use like this:
> >
> > (process-call (lambda () 7)) => 7
>
> A parallel map could then look like:
>
> (define (my-function a b) (+ a b))
>
> (map thread-join!
> (map (lambda (parameters)
> (thread-start! (make-thread
> (lambda ()
> (process-call
> (lambda ()
> (apply my-function parameters))))
> 'parallel)))
> '( (1 2) (3 4) (4 5))))
>
> But Beware: my-function must not raise an exception and return ONLY
> data, which is write/read idempotent (a restriction which probably
> applies more or less to your Python example too).
>
>
>
_______________________________________________
Chicken-users mailing list
[email protected]
http://lists.nongnu.org/mailman/listinfo/chicken-users
