Hi Ken,
  Thanks for responding,  it would appear that the reader is not
responding correctly regarding ghost cells.
It is now apparent that ghost cells are my problem and resolving that
will have to happen somewhere with the
data writer and the reader.  Fortunately I know both.

Thanks for pointing it out,
--John.

On Fri, Apr 16, 2010 at 10:26 AM, Moreland, Kenneth <kmo...@sandia.gov> wrote:
> John,
>
> I believe the generate normals option requests a layer of ghost cells.  Are
> you sure your reader is responding properly to that?
>
> -Ken
>
>
> On 4/16/10 9:53 AM, "John Patchett" <patchett2...@gmail.com> wrote:
>
> Good Morning,
>   I have encountered a problem with the contour filter with computer
> normals set on.
>
> My configuration is a Red Hat Enterprise Linux Server release 5.4
> (Tikanga) server running 32 pvserver processes, openmpi 1.4.1, Mesa
> 7.6 (OSMesa).
> a Fedora release 11 (Leonidas) workstation running the client.
> Both are CVS ParaView-3-8 builds updated after the calculator fix was
> applied (very fast thank you).
>
> I load a dataset with 2 vectors and a scalar all floats using VPIC reader.
> I run 1 of the vectors through the calculator to compute magnitude.
>   Result array has range [.250244, .572473]
> I then run that result into a contour, which will do 1 of 2 things:
> If I un-check compute normals : contour works as expected (attached).
> If compute normals is checked :
>    it takes a long time to produce a bad contour (attached) with
> errant lines OR the server segfaults
>
> If the server segfaults it is worthy of note that the information tab
> of the Calculator then reports the Result array as having
> range[0.0,3.57...+38]
> If I delete the contour and the calculator, create a new calculator,
> calculate magnitude it reports range as [0.0,3.57...+38]
>
> Seems like a problem ...
>
> I will work at finding a more simple example...
>
> Thanks,
> --John Patchett.
>
>
>
>    ****      Kenneth Moreland
>     ***      Sandia National Laboratories
> ***********
> *** *** ***  email: kmo...@sandia.gov
> **  ***  **  phone: (505) 844-8919
>     ***      web:   http://www.cs.unm.edu/~kmorel
>
>
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