Re: Need 64bit gcc4 PyNGL build, or some sort of hack?

Hi Trevor,

We have a PyNGL/PyNIO binary for an x86_64 system that was compiled
with gcc3. Do you think this might work for you? If so, you can
download it from www.earthsystemgrid.org and give it a try. Go to this
URL (I'm assuming you already have a login, otherwise you'll need to
register), and then go the "Shortcuts menu" in the middle of the page
and jump to "Latest PyNGL release". Then choose whether you want a
Numeric or numpy version, and you should see:

  PyNGL/PyNIO 1.1.0 for Linux x86_64 (64-bit)

These binaries were built with gcc3. If they don't work, let me know
and I'll help you figure out the next step.

Good luck,

--Mary

On Thu, 12 Apr 2007, Trevor Law wrote:

> Hello,
>
> My name is Trevor Law and I have a substantial code base that I've
> developed for visualizing biological neuron data that uses PyNGL.
> Because of compatibility issues, we at my lab changed our linux
> distribution from Redhat enterprise to OpenSuse. Unfortunately,
> OpenSuse uses gcc4 and we have a 64-bit machine architecture (x86_64).
> I tried using the 32-bit gcc4 binaries as I thought x86_64 was
> backwards compatible, but the machine complains about an incorrect ELF
> class:
>
> featureserver:/usr/lib/python2.5/site-packages/PyNGL_numpy # python
> Python 2.5 (r25:51908, Jan 9 2007, 17:00:50)
> [GCC 4.1.2 20061115 (prerelease) (SUSE Linux)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import Ngl
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "Ngl.py", line 58, in <module>
> from hlu import *
> File "hlu.py", line 5, in <module>
> import _hlu
> ImportError: ./_hlu.so: wrong ELF class: ELFCLASS32
>
>
> I do not have a ton of linux expertise, but I'm guessing that what
> needs to happen is the source code needs to be compiled for the x86_64
> architecture with gcc4 to work. If someone could give me some tips on
> how to do this, or work some other "hack" to fix things, I would
> appreciate it very much.
>
> Here is the output of "gcc --version":
> gcc (GCC) 4.1.2 20061115 (prerelease) (SUSE Linux)
> Copyright (C) 2006 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions. There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>
> Thank you advance for any time you could devote to my problem
> _______________________________________________
> pyngl-talk mailing list
> pyngl-talk_at_ucar.edu
> http://mailman.ucar.edu/mailman/listinfo/pyngl-talk
>
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Received on Thu Apr 12 2007 - 16:38:55 MDT