Trouble getting IDL to "see" coda

CODA
1

Good morning Sander,

The question relates to a linux machine with the latest harp 1.17 installed, both for use at the command line as well as via IDL/python.

I wish to use coda_open() from an IDL script, which is running fine so far with harp_import() for e.g… However, I cannot convince IDL that coda is also installed. In my .bashrc file, I had the following so far.

export IDL_PATH=‘<IDL_DEFAULT>:’/usr/local/exelis/idl84/
export CODA_DEFINITION=/usr/local/share/coda/definitions/
export IDL_DLM_PATH=‘<IDL_DEFAULT>:’/usr/local/lib/harp/idl
export IDL_STARTUP=~/idl/idlstartup.pro
export UDUNITS2_XML_PATH=/usr/local/share/harp/udunits2.xml

If I also add coda to the IDL_DLM_PATH, as suggested in the coda installation, for e.g.

export IDL_DLM_PATH=‘<IDL_DEFAULT>:’/usr/local/lib/coda/idl:/usr/local/lib/harp/idl

I still get a % Variable is undefined: CODA_OPEN error.

Our sys admin cannot think of anything else to try.

Any ideas?

Many thanks,
MariLiza

2

This looks ok.

Some things to check:

  • did you actually configure+build+install coda with --enable-idl? Do you actually have files present in /usr/local/lib/coda/idl
  • what is the content of your ~/idl/idlstartup.pro? Does it perhaps modify dlm paths as well?
1 Like
3

Hi Sander,

Thanks for getting back to me.

Yes, I confirmed with the sys admin, he did use --enable-idl when configure+build+install coda

Yes, there are files in /usr/local/lib/coda/idl, however there appear to be duplicates from a previous installation:

(base) ls -ltr /usr/local/lib/coda/idl
total 4296
-rw-r–r–. 1 root root 1241 Mar 26 2018 coda-idl.dlm
-rwxr-xr-x. 1 root root 4251136 Mar 26 2018 coda-idl.so
-rwxr-xr-x. 1 root root 965 Mar 26 2018 coda-idl.la
-rw-r–r–. 1 root root 1241 May 8 19:12 coda_idl.dlm
-rwxr-xr-x. 1 root root 129872 May 8 19:12 coda_idl.so
-rwxr-xr-x. 1 root root 988 May 8 19:12 coda_idl.la

I am guessing that the older, 2018, files should not be there, right? there is a change from hyphen to underscore in the file names I see.

Finally, ~/idl/idlstartup.pro just contains a few directories with IDL subroutines so I don’t call them all the time, i.e.

(base) more idlstartup.pro
!PATH = Expand_Path(‘+/usr/local/exelis/idl84/lib/coyote’) + ‘:’ + !PATH
!PATH = Expand_Path(‘+/home/mariliza/TROPOMI/Programs/astrolib’) + ‘:’ + !PATH

Shouldn’t cause any trouble, right? it’s the David Fanning Coyote Library and the NASA IDL Astronomy Users Library.

Thanks!
MariLiza

4

The older coda installation is likely the problem. Please remove all the old files from 2018 and then things will likely work.

1 Like
5

Will ask sys admin to delete and let you know!
Many thanks
MariLiza

6

Just confirming that the old files were indeed causing the issue,
Thanks!
MariLiza