[Paraview] PV parallel mode loading

[Berk Geveci]

> This is a .pvd file, might there be a problem?

A .pvd file point to what kind of files? There should be some sort of
.vtX or .pvtX file(s) that the .pvd file points to. Also, do you know
what kind of file system the data is on? Some sort shared disk (NFS,
Samba etc.) or is it a parallel file system (pvfs, lustre, gpfs etc.).

-berk

On Thu, Mar 25, 2010 at 3:17 PM, Fred Fred <stan1313 at hotmail.fr> wrote:
>
>
>> From: dave.demarle at kitware.com
>> Date: Thu, 25 Mar 2010 14:10:37 -0400
>> Subject: Re: [Paraview] PV parallel mode loading
>> To: stan1313 at hotmail.fr
>> CC: paraview at paraview.org
>>
>> By -no 32 do you mean you are starting a 32 process MPI job?
>
> Yes
>
>> If so, and you can load the dataset on your personal computer in one
>> process, try -no 1. Extra processes add overhead. If the reader isn't
>
> Ok I do know that, I am not a programming newbie! lol
> But the loading time is about to 32 x the loading time on a single process,
> and this is not a normal behaviour.
> the overhead you are talking about should just be due to the fact there is a
> need to establish proper connections between data subsets so as to be able
> to properly track a streamline integration for instance, but this should not
> lead to such an overhead in loading the data I think.
>
>> a parallel capable one, for example, you are temporarily loading
>> 32*133 million points.
>
> This is a .pvd file, might there be a problem?
>
>> David E DeMarle
>> Kitware, Inc.
>> R&D Engineer
>> 28 Corporate Drive
>> Clifton Park, NY 12065-8662
>> Phone: 518-371-3971 x109
>>
>>
>>
>> On Thu, Mar 25, 2010 at 2:01 PM, Fred Fred <stan1313 at hotmail.fr> wrote:
>> > I have a 133 millions points and 134 millions cells regular grid
>> > dataset,
>> > which I can load in a few seconds on my personnal computer.
>> > Now I launch PV in parallel with -no 32 on my single computer and ... I
>> > have
>> > to wait about 4 minutes before I can clic on the Apply button, and once
>> > I
>> > have done it I have to wait additional 3 minutes to have the dataset
>> > loaded!
>> > Any explaination?
>> >
>> >
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