[ncl-talk] Error initializing udunits-2 unit system

[Mary Haley]

Hi Jared,

I was able to reproduce your problem with 6.4.0 and 6.5.0 on cheyenne
unfortunately. Thanks for providing a nice test program.

The work-around for now seems to be setting this environment variable:

setenv UDUNITS2_XML_PATH $NCARG_ROOT/lib/ncarg/udunits/udunits2.xml

or

export UDUNITS2_XML_PATH=$NCARG_ROOT/lib/ncarg/udunits/udunits2.xml

Can you try this and let me know if it works in your own environment on
cheyenne, and I'll file an official ticket on this.

Thanks,

--Mary



On Mon, Aug 13, 2018 at 3:31 PM, Jared Lee <jaredlee at ucar.edu> wrote:

> Hi, I have a follow-up on my original ticket from 10 Aug. I just
> discovered that I get the udunits-2 error mentioned in the previous email
> if I call ut_string_fix on its own. However, if I call ut_string and THEN
> call ut_string_fix, then I get no error and my script runs normally. So it
> appears that there's a bug in ut_string_fix in how it's calling the
> udunits-2 library. Sorry to keep finding bugs in this script.
>
> Again, this is a problem with NCL v6.4.0, loading a special pre-release
> version of ut_string_fix for v6.5.0 (after I found an earlier bug with the
> v6.4.0 ut_string_fix function). I do not know if this was fixed for NCL
> v6.5.0 because I'm waiting for gnu compilers to be installed on my own
> workstation first, and NCL v6.5.0 is not yet installed on cheyenne, either.
>
> Jared
>
> On Fri, Aug 10, 2018 at 5:15 PM Jared Lee <jaredlee at ucar.edu> wrote:
>
>> Hi ncl-talk,
>>
>> I'm encountering an error I've never seen before, and which doesn't show
>> up at all in ncl-talk archives. I'm running NCL v6.4.0 on Cheyenne, and I'm
>> calling a special bug-fix to the ut_string_fix function (it's what is now
>> default in v6.5.0, I believe). When I call the ut_string_fix function with
>> at least some specific values (I haven't done exhaustive testing, but I've
>> done a few tests that yield the same issue), I get the error:
>>
>> "Error initializing udunits-2 unit system"
>>
>> Here's a simple script that demonstrates the issue:
>> ==========
>> load "/glade/u/home/jaredlee/tools/nclscripts/functions/ut_
>> string_fix.ncl"
>> begin
>>
>> obs_time = (/113976.d, 114720.d, 115392.d/)
>> obs_time at units = "hours since 2000-01-01 00:00:00"
>>
>> mo_nums1 = ut_string_fix(obs_time, "%N")
>> print(mo_nums1)
>> mo_nums2 = stringtoint(ut_string_fix(obs_time, "%N"))
>> print(mo_nums2)
>>
>> end
>> ==========
>>
>> And here is the output I get when executing this script:
>>
>> ==========
>> jaredlee at cheyenne6:~/tools/nclscripts> ncl bug_udunits2.ncl
>>  Copyright (C) 1995-2017 - All Rights Reserved
>>  University Corporation for Atmospheric Research
>>  NCAR Command Language Version 6.4.0
>>  The use of this software is governed by a License Agreement.
>>  See http://www.ncl.ucar.edu/ for more details
>> Error initializing udunits-2 unit system
>> jaredlee at cheyenne6:~/tools/nclscripts>
>> ==========
>>
>> Does anyone have any ideas how to fix this? Is this something that
>> cislhelp needs to be involved in to fix on cheyenne?
>>
>> Jared
>>
>> --
>> ===============================
>> Jared A. Lee, Ph.D.
>> Project Scientist II
>> Research Applications Laboratory
>> National Center for Atmospheric Research
>> Boulder, Colorado, USA
>>
>> Member, AMS Planning Commission
>>
>> Email: jaredlee at ucar.edu (w)
>> Phone: 303.497.8485 (w)
>> Web: https://staff.ucar.edu/users/jaredlee
>> ===============================
>>
>
>
> --
> ===============================
> Jared A. Lee, Ph.D.
> Project Scientist II
> Research Applications Laboratory
> National Center for Atmospheric Research
> Boulder, Colorado, USA
>
> Member, AMS Planning Commission
>
> Email: jaredlee at ucar.edu (w)
> Phone: 303.497.8485 (w)
> Web: https://staff.ucar.edu/users/jaredlee
> ===============================
>
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