[Paraview-developers] Paraview is almost wonderful (not dreadful as I implied previously)

Mon Feb 6 12:13:13 EST 2012

Will

My apologies. I saw it after I clicked send. If you don't mind I'll take my punishment as a suspended sentence. I feel that I have suffered enough already with a week (and weekend) of debugging paraview on 128 cores of the cluster. During the day I confine my excesses to top strength coffee - but rest assured that I'll be hitting the whisky when I get home.

JB

From: Will Schroeder [mailto:will.schroeder at kitware.com]
Sent: 06 February 2012 18:03
To: Biddiscombe, John A.
Cc: Sebastien Jourdain; paraview-developers at paraview.org
Subject: Re: [Paraview-developers] Paraview is almost wonderful (not dreadful as I implied previously)

John-

I want to make sure that you realize whining is spelled "whining" not "wining"  as in your email (which I think has to do with excessive drinking).  For homework I suggest you write "I will not whine about ParaView ever again" 100 times on a local chalkboard :-)

W
On Mon, Feb 6, 2012 at 11:49 AM, Biddiscombe, John A. <biddisco at cscs.ch<mailto:biddisco at cscs.ch>> wrote:
Sebastien (Also Utkarsh who emailed me off list)

I would like to point out that after I patched the realloc problem, (and disabled the same call in trilinos, which between you and me was a real pain in the bum to find) - which strictly speaking is a libc/kernel problem on our linux installations not really a paraview bug - everything has been much much better. I was able to load a large dataset and generate an animation.

in fact another  job just completed on the cluster and I am now viewing one timestep from a half a billion particle dataset !!! hoorah. At last.

So despite my constant wining (and trust me, paraview was crashing constantly on our cluster), it is now wonderful and I will recommend it to all my friends (both of them).

Paraview still crashes randomly from time to time, but the frequency is very much reduced now, once I have the state set up, I avoid clicking anything and am able to generate some animations. Users generally report to me that paraview crashes all the time, my own experience is that it crashes all the time, and the fact that I have been seriously considering using visit instead, tells me something...

My apologies for the slightly over-the-top title of my earlier post.

JB
PS. Paraview just crashed on me again and I lost all my particles. segfault. <sigh>. Back to totalview again.

-----Original Message-----
From: Sebastien Jourdain [mailto:sebastien.jourdain at kitware.com<mailto:sebastien.jourdain at kitware.com>]
Sent: 06 February 2012 16:50
To: Biddiscombe, John A.
Cc: paraview-developers at paraview.org<mailto:paraview-developers at paraview.org>
Subject: Re: [Paraview-developers] paraview completely unusable (as usual)

Hi John,

thanks for reporting the issue, we'll look into that during the day.

Seb

On Mon, Feb 6, 2012 at 6:08 AM, Biddiscombe, John A. <biddisco at cscs.ch<mailto:biddisco at cscs.ch>> wrote:
> The reason is because of the commit below. It seems like it fails to work after N calls on most machines. I fixed this a long time ago on my local branches, but forgot to reapply the fix when I switched to the standard paraview release branch (and master last week). After tracking that down, I found that trilinos also uses the dodgy realloc call and this was bringing down my plugins with segfaults at random and hard to reproduce times.
>
> Can I suggest a CMake option to disable this realloc call.
>
> ta
>
> JB
>
> commit c869c3d5875f503e757b64f2fd1ec349aee859bf
> Author: Sebastien Jourdain <sebastien.jourdain at kitware.com<mailto:sebastien.jourdain at kitware.com>>
> Date:   Mon Jun 28 15:02:21 2010 -0400
>
>    ENH: Change the behaviour of DataArray.Resize(newSize)
>
>    Now, if the newSize is bigger than the current size, the call of
> Resize(newSize) will produce an array of that exact newsize and not
> big
>
>
> --
> John Biddiscombe,                            email:biddisco @ cscs.ch<http://cscs.ch>
> http://www.cscs.ch/ CSCS, Swiss National Supercomputing Centre  | Tel:
> +41 (91) 610.82.07<tel:%2B41%20%2891%29%20610.82.07> Via Cantonale, 6928 Manno, Switzerland      | Fax:
> +41 (91) 610.82.82<tel:%2B41%20%2891%29%20610.82.82>
>
>
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