[ncl-install] ng4ex gsun01n fails with segmentation fault on gentoo x86

[Mary Haley]

Pier,

You are running a rather old version of NCL.  You might want to  
consider upgrading.

Did you install NCL from source code or from a precompiled binary?

If you installed from source code, then there might be a problem with  
the configuration setup.

If you installed from a binary, then I suggest upgrading to NCL 5.2.0:

http://www.ncl.ucar.edu/Download/

If you installed from source code, I still recommend upgrading, but  
we'll need to figure
out if your configuration is correct.  Can you send me the $NCARG/ 
config/LINUX file
you used, and your "make-output" file?

--Mary

On Apr 17, 2010, at 2:07 AM, Pierpaolo Garofalo wrote:

> Hi all,
> I have managed to successfully compile and install ncl on a couple  
> of quad core x86_64 gentoo machines. Nevertheless there must be  
> something wrong when I do the same on a Macbook Santarosa with x86  
> gentoo when preparing for wrf-3.2.
>
> I realize that ncl is not properly working on this latter machine .
>
> I have just been using it with a very simple script aimed to  
> extract de-staggered data from wrf-3.2 wrfout files. As a matter of  
> fact the script below does its job well:
>
> ------------------------------------------------------------
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
>
> begin
>
>     a = addfile("wrfout.nc","r")
>
>     U = wrf_user_getvar(a,"ua",-1)
>
>     asciiwrite("U.tmp",U)
>
>     V = wrf_user_getvar(a,"va",-1)
>
>     asciiwrite("V.tmp",V)
>
> end
>
> ------------------------------------------------------------
>
> whereas the graphics doesn't seem to work:
>
> ng4ex gsun01n
>
> gives a quick flash of a white window opening and suddenly closing  
> in less than a tick.
>
> I did the following to investigate:
>
> 1) ulimit -s unlimited
>
> the white window persisted for several seconds before closing and  
> giving back the same error message:
>
> -------------------------------------------------------
> ng4ex gsun01n
>
> NCAR Graphics NCL Example <gsun01n>
>
>
> This example was set up to display the output to an
> X11 window.
>
>   Copying gsun01n.ncl
>
> Running NCL...
> Copyright (C) 1995-2009 - All Rights Reserved
> University Corporation for Atmospheric Research
> NCAR Command Language Version 5.1.0
> The use of this software is governed by a License Agreement.
> See http://www.ncl.ucar.edu/ for more details.
> Segmentation fault
>
> ncl failed.
>
> -------------------------------------------------------
>
> 2) I altered  gsun01n.ncl swapping X11 with ncgm but I got the same  
> error message again. gsun01n.ncgm was created but
>
> ctrans -d X11 gsun01n.ncgm
>
> showed a black empty window this time.
>
> 3) In order to investigate further I gave the command:
>
> strace ng4ex gsun01n &> log.err
>
> whose output is available here:
>
> http://pier.unirc.eu/cestino/log.err
>
> 4) As a last resort I tried to switch from intel to vesa xorg  
> driver but that too didn't avail.
>
> I would like to point out that:
> a) I am able to use idt as well as ncview.;
> b) compilation was performed by using gcc 4.3.4 and gfortran;
> c) Kernel is gentoo-2.6.30.
>
> Any hint on how to solve this would be greatly appreciated.
> Regards,
> Pier
>
> ------------------------------------------
> Pierpaolo Garofalo
> Dipartimento di Ingegneria Energetica
> Università Politecnica delle Marche
>
>
>
>
>
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