[Scilab-users] libsciparallel.so not provided

paul.carrico at free.fr paul.carrico at free.fr
Sun Dec 2 16:12:10 CET 2012


imagine the following :
for i = 1 : 100000
    for j = 1 : 8
        lanch_my_function_on_point_j
    end
end


would like to do :
for i = 1 : 100000
    proc1 = my_function_on_point_1
    proc2 = my_function_on_point_2
    ....           ....
    proc3 = my_function_on_point_8
end


Paul

NB : the link to download the diet soft is broken



----- Mail original -----
De: "Sylvestre Ledru" <sylvestre.ledru at scilab-enterprises.com>
À: users at lists.scilab.org
Envoyé: Dimanche 2 Décembre 2012 15:55:00
Objet: Re: [Scilab-users] libsciparallel.so not provided

There is no perfect answer: It depends the problem you are trying to solve.

Sylvestre

On 02/12/2012 15:38, paul.carrico at free.fr wrote:
> Hi Sylvestre,
> 
> Let me asking the following : in order to use parallelization in a multicore environnent (serveur or station), what is the best way ?
> 
> NB : 
> - As I ever told in the current list, I use as often as possible the vectorization in my current develoment, but the same elementary scheme has to be used tens of hundreds times ... thus parallization is another way to have significant gain in time calculation,
> - I've a CentOs server with 8 processors
> 
> Paul
> 
> 
> ----- Mail original -----
> De: "Sylvestre Ledru" <sylvestre.ledru at scilab-enterprises.com>
> À: users at lists.scilab.org
> Envoyé: Dimanche 2 Décembre 2012 15:21:41
> Objet: Re: [Scilab-users] libsciparallel.so not provided
> 
> On 02/12/2012 11:59, Martin Helm wrote:
>> Am 02.12.2012 11:48, schrieb paul.carrico at free.fr:
>>> I don't know how to say ... I'm using the 5.4.0 binary release and I've such kind of message ....
>>>
>>> see http://mailinglists.scilab.org/Scilab-users-parallilization-error-on-opensuse-td4025260.html
>>>
>>> Paul
>>>
>> That looks very suspicious, there is no hidden .libs directory in
>> share/scilab/modules/parallel so where does that come from? Do you set
>> any fancy LD_LIBRARY_PATHS? Or any manipulation from your side in
>> /etc/ld.so.conf or /etc/ld.so.conf.d?
> .libs is the temporary directory used under GNU/Linux and Mac OS X at
> build time to store the shared library (.so, .dylib).
> Your issue has been reported here:
> http://bugzilla.scilab.org/show_bug.cgi?id=12133
> and I will see if I can fix it for 5.4.1.
> 
> About PVM, Paul, you can give it a try. PVM is a bit outdated and not
> maintained. We are working on a MPI Scilab implementation which should
> be better.
> 
> Otherwise, if you want to go into parallel, you can have a look to Diet:
> http://graal.ens-lyon.fr/diet/use-cases/integrated-software/diet-scilab
> or proactive:
> http://proactive.activeeon.com/index.php?page=release_notes&action=displaymin&productid=12&majmin=1.0
> 
> 
> Sylvestre
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