GNU bug report logs - #12789
threads - proc-map - multicore issue

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: David Pirotte <david <at> altosw.be>
Subject: bug#12789: closed (Re: bug#12789: threads - proc-map - multicore
 issue)
Date: Sat, 03 Nov 2012 21:10:03 +0000

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Your bug report

#12789: threads - proc-map - multicore issue

which was filed against the guile package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 12789 <at> debbugs.gnu.org.

-- 
12789: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12789
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: ludo <at> gnu.org (Ludovic Courtès)
To: David Pirotte <david <at> altosw.be>
Cc: 12789-done <at> debbugs.gnu.org
Subject: Re: bug#12789: threads - proc-map - multicore issue
Date: Sat, 03 Nov 2012 22:06:50 +0100

Hi David,

David Pirotte <david <at> altosw.be> skribis:

> in the following example, the cores, 4 in my case, are used for a couple of seconds,
> then at some point only one core is used:
>
> guile -c '(begin (use-modules (ice-9 threads)) (par-map 1+ (iota 400000)))'

I fixed it just after we discussed it on IRC, in commit 134c95f of
stable-2.0.

Thanks again for the report!

Ludo’.

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From: David Pirotte <david <at> altosw.be>
To: bug-guile <at> gnu.org
Subject: threads - proc-map - multicore issue
Date: Fri, 2 Nov 2012 22:07:27 -0200

Hello,

in the following example, the cores, 4 in my case, are used for a couple of seconds,
then at some point only one core is used:

guile -c '(begin (use-modules (ice-9 threads)) (par-map 1+ (iota 400000)))'

Cheers,
David

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