[ncl-install] Conda Install Report [UPDATE]

[Kevin Hallock]

Some of those variables do take precedence over $NCARG_ROOT. Those variables serve a purpose in this case because the Red Hat package maintainers choose to separate files provided by NCL into different paths (/usr/lib64/ncarg, /usr/share/ncarg, …) rather than keeping everything in a single directory (“$CONDA_ENV_PATH/lib/ncarg" in our case). As such, I do not believe this to be a bug in the Red Hat ncl-6.3.0 package, but rather an incomplete configuration of environment variables within the conda environment which should ideally be set automatically.

Currently, only $NCARG_ROOT is set by the script $CONDA_ENV_PATH/etc/conda/activate.d/ncl-activate.sh, which is sourced as part of the “source activate ${env_name}” process. I will update the ncl-activate.sh and ncl-deactivate.sh scripts to set and unset the additional variables you mentioned in order to avoid conflicts like what you have experienced. This should allow for a seamless transition between your existing NCL runtime environment and your new Anaconda NCL environment without having to worry about environment variables.

Please note that this will only help users who are able to run “source activate ${env_name}” (bash/sh/zsh only; csh/tcsh/ksh users will have to manually manage their environment variables).

Thanks for the information,
Kevin


> On Mar 16, 2016, at 12:29 PM, HAVENER, KEVIN F GS-12 USAF ACC 14 WS/WXED <kevin.havener at us.af.mil> wrote:
> 
> I think I've figured out the problem with the conda install of ncl.  I am using Fedora 23.  The ncl-6.3.0 package for that platform available from the Redhat repository sets several NCAR_* environmental variables.  Those confused the conda install by installing additional paths beside NCARG_ROOT, which the conda install/source activate did manage to change.  In addition to NCARG_ROOT, the Fedora package sets:
> 
> NCARG_FONTCAPS
> NCARG_GRAPHCAPS
> NCARG_DATABASE
> NCARG_LIB
> NCARG_NCARG
> 
> And I think NCARG_LIB and NCARG_NCARG conflicted with the conda install.  What NCARG environment variables should be set by the Fedora package?  Just NCARG_ROOT, right.  The others are from long, long ago, right?
> 
> If anyone else is following this, you have to uninstall the Fedora ncl package, and reboot.  I could not locate where the rpm package sets the ncl environment variables.  Or you can unset them for a single session.  If anyone can clear up for me what the environment variables should be, I will file a bug report against the Red Hat package.  They need to change their recipe.
> 
> After fixing this, the examples ran correctly.  Now should I expect NCAR Graphics to work, because it didn't?  It failed to build the cpex08.f file with:
> F951: Internal compiler error:  Illegal instruction.
> According to "which gcc", it tried to use the 4.8.5 from the conda ncl_test environment and not the newer system gcc.
> 
> Kevin Havener
> 
> -----Original Message-----
> From: ncl-install-bounces at ucar.edu [mailto:ncl-install-bounces at ucar.edu] On Behalf Of HAVENER, KEVIN F GS-12 USAF ACC 14 WS/WXED
> Sent: Wednesday, March 16, 2016 12:12 PM
> To: ncl-install at ucar.edu
> Subject: [ncl-install] Conda Install Report
> 
> I created an environment and installed ncl under my personal conda python 2.7.10 environment.  Install went fine as far as I can tell.
> 
> Was surprised to see conda-ncl install a Python3 environment.  Good job.
> Tried to run the example suite as a test:
>  ncl -V:   r16433            ;;expected
>  ng4ex gsun01n: resource </usr/share/ncarg/resfile> does not exist  ;;unexpected
> 
> Shouldn't the test/example suite run?  I did check to make sure that I was running the right ncl.
> 
> As an aside:
> 
> Same issue with pyngl/pynio.  Install went well.  Examples didn't run with "libjpeg.so.8 not found" during VD_create vdatas .  Here I tried to run the examples by using the run-all-ex.sh in the ~/anaconda2/envs/pyngl_test/share directory.  Seems like the pynglex script on the website is outdated/not included?
> 
> 
> Kevin Havener
> 
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