[ncl-install] running ncl on cray machine using aprun

[Gerry Creager - NOAA Affiliate]

I wish I'd seen this. We're running NCL on a Cray system. Using the stock
binary for x86_64, we can run it on the login node, and using aprun, it can
be run in batch jobs on the compute nodes. I'll try to watch for these, a
bit more closely, in the future.

Welcome back, Mary!
gerry

On Mon, Jul 27, 2015 at 5:52 PM, Mary Haley <haley at ucar.edu> wrote:

> Hi Jatin,
>
> Glad you figured it out. Sorry we didn't respond sooner, but I've been out
> of the office, and I'm not sure anybody else knew the answer.
>
> I've filed a bug report on this (NCL-2256).  It sounds like it's simply
> failing because it's trying to look in a home directory, which doesn't
> exist.
>
> --Mary
>
>
> On Tue, Jul 21, 2015 at 9:47 PM, Jatin Kala <jatin.kala.jk at gmail.com>
> wrote:
>
>>  Hi Mary,
>> Just FYI, we have found a solution to this problem.
>> Compiling from source was not necessary. Turns out that to run ncl on
>> Cray machines, you need the following:
>>
>> export NCARG_USRRESFILE=$NCARG_ROOT/hluresfile
>> export MY_TMP=/scratch/y98/julia/tmp
>> TMPDIR=$MY_TMP aprun -n 1 $NCARG_ROOT/bin/ncl script.ncl
>>
>> Not explicitly defining NCAR_USRRESFILE caused the seg fault.
>> We got this info from another group which runs ncl on a Cray machine:
>> http://www.archer.ac.uk/about-archer/software/modcatalogue/ncl/
>>
>> This did the trick for us. Might be worth putting this link on NCL
>> install web-page if anyone else is running ncl on Cray machines via aprun.
>>
>> Cheers,
>> Jatin
>>
>>
>>
>> On 7/04/2015 10:03 pm, Mary Haley wrote:
>>
>>  Hi,
>>
>>  I don't know what the "aprun" utility is so I can't help you there.
>>
>>  Are you able to just run NCL without any scripts?  You can try:
>>
>>   ncl -V
>>
>>  to see if it will echo the version number.
>>
>>  You can probably compile from source code if the Cray if you have
>> access to good gcc/gfortran compilers.  However, if it's truly Linux, then
>> one of our precompiled Linux binaries should work.  Did you try any of the
>> Debian or RedHat ones?
>>
>>  --Mary
>>
>>
>> On Mon, Apr 6, 2015 at 8:14 PM, Jatin Kala <jatin.kala.jk at gmail.com>
>> wrote:
>>
>>> Hi,
>>> Does anyone have experience running ncl on a Cray supercomputer, using
>>> the aprun utility?
>>>
>>> Some machine details:
>>> jatinkala at magnus-2:~> uname -a
>>> Linux magnus-2 3.0.101-0.46-default #1 SMP Wed Dec 17 11:04:10 UTC 2014
>>> (8356111) x86_64 x86_64 x86_64 GNU/Linux
>>>
>>> jatinkala at magnus-2:~> cat /etc/*-release
>>> SUSE Linux Enterprise Server 11 (x86_64)
>>> VERSION = 11
>>> PATCHLEVEL = 3
>>> Cluster Manager v6.1
>>> slave
>>>
>>> LSB_VERSION="core-2.0-noarch:core-3.2-noarch:core-4.0-noarch:core-2.0-x86_64:core-3.2-x86_64:core-4.0-x86_64"
>>>
>>> I installed the SL pre-compiled binary:
>>> ncl_ncarg-6.2.1.Linux_SL6.5_x86_64_nodap_gcc447.tar.g
>>>
>>> A simple print("hello") program is giving us a segmentation fault.....
>>>
>>> I'm still waiting on the sys admins, but in your opinion, does it look
>>> like we will have to build from source using the Cray C and Fortran
>>> compilers?
>>>
>>> Cheers,
>>> Jatin
>>> _______________________________________________
>>> ncl-install mailing list
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>>>
>>
>>
>> --
>> Dr. Jatin Kala
>> Lecturer in Atmospheric Science
>> Murdoch University,Perth, Western Australia
>> Tel: (+618) 9360 6297http://www.jatinkala.com/
>>
>>
>
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-- 
Gerry Creager
NSSL/CIMMS
405.325.6371
++++++++++++++++++++++
“Big whorls have little whorls,
That feed on their velocity;
And little whorls have lesser whorls,
And so on to viscosity.”
Lewis Fry Richardson (1881-1953)
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