[Openmcl-devel] weird random problem

Todd Ingalls testcase at asu.edu
Tue May 20 17:06:11 UTC 2008


Thank you. This seems to be the cause. Setting swank:*communication- 
style* to nil solves this problem as the other communication styles  
seem to not be available.


On May 20, 2008, at 3:46 AM, Nikodemus Siivola wrote:

> On Tue, May 20, 2008 at 8:54 AM, Gary Byers <gb at clozure.com> wrote:
>
>> So, when a thread starts up, its binding of *RANDOM-STATE* is set  
>> to some
>> value which returns 91 on the first call to (RANDOM 100).  The fact  
>> that
>> 91 is the value that you get repeatedly when you do something similar
>> under SLIME is likely significant, but it's not clear how.  I don't
>> usually use SLIME, but didn't see this behavior with 1.2 on x86-64  
>> Linux
>> using something called "SLIME 2008-01-27".
>
> I bet  swank:*communication-style* is :spawn, which (IIRC) means every
> evaluation from a non-repl buffer gets a fresh thread -- and hence a
> consistent *random-state* -- whereas REPL evaluations all happen in
> the same thread (IIRC, again).
>
> Cheers,
>
> -- Nikodemus




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