[GiNaC-list] is ginac thread safe for this case?

Cristobal Navarro axischire at gmail.com
Mon Jul 26 18:39:15 CEST 2010


Thanks,
this is very useful
best regards
Cristobal

On Mon, Jul 26, 2010 at 12:13 PM, Martin Ettl <ettl.martin at gmx.de> wrote:
> Hello Cristobal,
>
> i am using OpenMPI with GiNaC and it works for me without issues.
>
> Best regards
>
> Martin
>
> -------- Original-Nachricht --------
>> Datum: Mon, 26 Jul 2010 12:07:01 -0400
>> Von: Cristobal Navarro <axischire at gmail.com>
>> An: GiNaC discussion list <ginac-list at ginac.de>
>> Betreff: Re: [GiNaC-list] is ginac thread safe for this case?
>
>> Hello ginac friends
>> we known ginac is not thread safe, but it should be process safe, for
>> exmaple for openMPI usage right?
>>
>> On Mon, Jun 14, 2010 at 1:12 AM, Alexei Sheplyakov
>> <alexei.sheplyakov at gmail.com> wrote:
>> > Hello,
>> >
>> > On Sun, Jun 13, 2010 at 03:44:13PM -0400, Cristobal Navarro wrote:
>> >> i would to clear a little!
>> >>
>> >> the expressions are independant from each thread,
>> >>
>> >> exp1 = x*y+....
>> >>
>> >> exp2 = x+x+x+x...
>> >>
>> >> exp3 = y+y*y+3...
>> >> ..
>> >> ..
>> >> expn = just_symbols..
>> >>
>> >> no subexpressions never.
>> >
>> > You can't know that for sure. Expression sharing is completely
>> transparent
>> > for the user, it might be a side effect of some computation (i.e.
>> calculating
>> > the derivative of a product, comparing two expressions, etc).
>> >
>> > Best regards,
>> >        Alexei
>> >
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