[racket] Compiling a program with places

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Thu Oct 13 08:14:17 EDT 2011

At Thu, 13 Oct 2011 06:43:19 +0200 (CEST), Ivanyi Peter wrote:
> I would like to experiment  with "places" in DrRacket. I have seen 
> the examplein the manual and I understand it. I have tried to execute it in 
> DrRacket but it says "no support".

What platform and version are you using? Places should be enabled by
default since 5.1.2 on most platforms.

> My other (more 
> important) question is how can I turn the example problem into 1 or 2 
> executable. Is there any way for this?

Are you looking at the example

 (let ([pls (for/list ([i (in-range 2)])
               (dynamic-place "place-worker.rkt" 'place-main))])
    (for ([i (in-range 2)]
          [p pls])
       (place-channel-put p i)
       (printf "~a\n" (place-channel-get p)))
    (map place-wait pls))

and wondering how to replace the "place-worker.rkt" with something that
works in an executable? Use `define-runtime-module-path'.

Another possibility is to use the `place' form instead of
`dynamic-place'. The new Guide section (which I see is not linked as it
should be from the Reference section) provides an example using


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