Re: Error from attempting to load a DSO

Hi Mary and all,

Was this problem solved? I noticed that Andy's linux is a 64-bit machine
(correct me if i am wrong). Possibly he uses a 64-bit NCL binary. I
am not sure if the ifort compiler that he uses makes 64-bit binaries.
A simple "file nc2hs052.so" may tell what binary is being produced.
Also one may want to check "file `which ncl`". If the ifort compiler is
making a 32-bit binary, there may be a problem.

saji

* Mary Haley <haley_at_ucar.edu> [2008-02-25 07:49:39 -0700]:

>
> Hi All,
>
> Sorry for my late response on this. I had a conversation with Andy
> offline about this, and I think the problem is with an incompatibility
> with the way NCL was built and the compiler he's using to build the
> shared object. He's using the Intel compiler, and NCL was most likely
> built with g77/gcc. Usually this is not an issue, but sometimes when
> you mix compilers, they require that you have certain versions of each
> in order to do this.
>
> As a test, I've asked Andy to try some simple WRAPIT programs, using
> the Intel compiler on one run, and the default compiler that it
> finds as a second run. If these tests don't work, then I will
> probably need to look into building NCL on that particular
> machine using their compilers.
>
> For a simple WRAPIT test, see:
>
> http://www.ncl.ucar.edu/Document/Tools/WRAPIT.shtml#TroubleShooting
>
> --Mary
>
> On Thu, 21 Feb 2008, Andrew Mai wrote:
>
>> Output from ncl command:
>>
>> Copyright (C) 1995-2007 - All Rights Reserved
>> University Corporation for Atmospheric Research
>> NCAR Command Language Version 5.0.0
>> The use of this software is governed by a License Agreement.
>> See http://www.ncl.ucar.edu/ for more details.
>> warning:An error occurred loading the external file ./nc2hs052.so,
>> file not loaded
>> ./nc2hs052.so: undefined symbol: NclGetArgValue
>> warning:error at line 4 in file nc2hs052.ncl
>>
>> NCL command:
>>
>> % ncl -n nc2hs052.ncl
>>
>> Beginning of NCL program nc2hs052.ncl (note that line 4 is the attempted
>> load of the DSO):
>>
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>> load "$HOME/ncl/functions/genFileNames.ncl"
>>
>> external NC2HS052 "./nc2hs052.so"
>>
>> begin
>>
>> ; ..User settable variable initializations
>> nmoStrt = 01
>> ndyStrt = 01
>> nfDayi = 30 ; # days/file input
>> nfDayo = 365 ; # days/file output
>> NC2HS052::initlwrap()
>>
>> Possibly helpful additional info:
>>
>> % uname -a
>> Linux davinci 2.6.5-7.283-sn2 #1 SMP Wed Nov 29 16:55:53 UTC 2006
>> ia64 ia64 ia64 GNU/Linux
>> % WRAPIT -in -r8 -L /usr/common/homes/m/mai/lib -l mai nc2hs052.stub
>> nc2hs052.f90 initlwrap.f
>> WRAPIT Version: 051007
>> /usr/common/intel/fc/10.0.026/bin/ifort
>> COMPILING nc2hs052.f90
>> COMPILING initlwrap.f
>> LINKING
>> END WRAPIT
>> % cat nc2hs052.stub
>> C NCLFORTSTART
>> subroutine gd2sp3d(grid3d,ntim,coef3d)
>> integer ntim
>> real grid3d(128,64,ntim)
>> real coef3d(512,ntim)
>> C NCLEND
>> C NCLFORTSTART
>> subroutine gd2sp4d(grid4d,nlev,ntim,coef4d)
>> integer nlev,ntim
>> real grid4d(128,64,nlev,ntim)
>> real coef4d(512,nlev,ntim)
>> C NCLEND
>> C NCLFORTSTART
>> subroutine uv2vd4d(u4d,v4d,nlev,ntim,vor4d,div4d)
>> integer nlev,ntim
>> real u4d(128,64,nlev,ntim),v4d(128,64,nlev,ntim)
>> real vor4d(512,nlev,ntim),div4d(512,nlev,ntim)
>> C NCLEND
>> C NCLFORTSTART
>> subroutine gd2sp(grid,coef,kind,icos,laplac)
>> integer kind,icos,laplac
>> double precision grid(130,64)
>> double precision coef(1892)
>> C NCLEND
>> C NCLFORTSTART
>> subroutine uv2vd(u,v,vor,div)
>> real u(128,64),v(128,64)
>> double precision vor(1892),div(1892)
>> C NCLEND
>> C NCLFORTSTART
>> subroutine expand(grd,nfour2,nlat,nfour,grid)
>> integer nfour2,nlat,nfour
>> real grd(nfour2,nlat)
>> double precision grid(nfour,nlat)
>> C NCLEND
>> C NCLFORTSTART
>> subroutine truncm(t42,r15)
>> double precision t42(1892)
>> double precision r15(512)
>> C NCLEND
>>
>> Does the error message indicate an incorrect installation of NCL? Note
>> that NclGetArgValue is not a name in any of my code.
>>
>> Andy
>>
>> --
>>
>> Andrew W. Mai
>> --- __o National Center for Atmospheric Research
>> ---- _`\<,_ Boulder, CO 80307 USA mai_at_ucar.edu
>> --- (*)/ (*) http://www.cgd.ucar.edu/cdp/mai/mai.html
>>
>>
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-- 
Saji N. Hameed
APEC Climate Center          				+82 51 668 7470
National Pension Corporation Busan Building 12F         
Yeonsan 2-dong, Yeonje-gu, BUSAN 611705			saji_at_apcc21.net
KOREA