[Wrf-users] geogrid and metgrid does not compile (???)

Lucas AJ Bastien lbastien at lbl.gov
Wed Aug 22 12:46:01 MDT 2012 

Here is a potential explanation:

The function _gfortran_copy_string (and some other functions) seem to be 
functions that are internal to gfortran. However, those functions have 
been removed from recent versions of gfortran (eg see 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33647 I don't know exactly 
which version is the first one it's been removed from). My understanding 
is that your undefined reference errors mean than the compiler see 
references to these functions in the already compiled netcdf libraries 
but can't find their implementations anywhere. I would guess that your 
netcdf libraries have been compiled with a somewhat old version of 
gfortran and that you are either trying to compile WPS with a newer 
version of gfortran or with a different compiler. These are potential 
workarounds:

  - recompile the netcdf library with your current version of gcc.
  - recompile WRF and WPS with the version of gcc used to compile netcdf.

It would be useful to know what compiler and what version has been used 
to compile the netcdf library you are linking to and what compiler and 
what version of compiler you are trying to compile WRF and WPS with. Are 
you using the same for WRF and WPS?

A similar problem can occur further into the compilation when the WPS 
makefile compiles WPS utilities that link to ncl libraries installed 
from pre-compiled binaries if those have been pre-compiled with older 
versions of gfortran. If it happens and if you only need geogrid.exe, 
ungrib.exe, and metgrid.exe (and if you don't need the other utilities), 
then you can compile by running "./compile wps" instead of just 
"./compile" (or you can reinstall or compile ncl with a newer version of 
gfortran).

Lucas


On 08/22/2012 11:00 AM, wrf-users-request at ucar.edu wrote:
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>     1. Re: geogrid and metgrid does not compile (???)
>     2. First CORDEX-WRF Workshop and CORWES/WRF4G hands-on	Tutorial
>        (jpdiaz)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 21 Aug 2012 09:04:55 +0900
> From: ???<jinjonghun at gmail.com>
> Subject: Re: [Wrf-users] geogrid and metgrid does not compile
> To: "wrf-users at ucar.edu"<wrf-users at ucar.edu>
> Message-ID:
> 	<CAKFdwmrJ_S_B3hsdd=X7hdiVN6Ce9o+QUpojGn1dG75M2BH-iA at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi,
> did you have compiled your NetCDF library with gfortran?
> I recommend you to check that you have defined with path in environment
> variable $NETCDF.
>
>
> 2012/8/20 Zhou, Ying<ying.zhou at emory.edu>
>
>    
>>   Hi WRF-users,
>>
>>
>>
>> I am trying to compile WRF V3.4.1. The WRF part compiled without problem.
>> However, when I tried to compile WPS, I only see ungrib.exe. Neither
>> geogrid.exe nor metgrid.exe was generated. I have gfortran compiler on
>> Linux x86_64 system. In the compile.log, I got a lot of messages on
>> "undefined reference", such as  "libnetcdff.so: undefined reference to
>> `_gfortran_copy_string' " and "libnetcdff.so: undefined reference to
>> `_gfortran_internal_malloc64' ". I am not sure whether this means something
>> is not right with my netcdf library, even though WRF compiled succefully.
>>
>>
>>
>> wrfhelp suggested that I modify the last line in WRF_LIBS in configure.wps
>> by adding -lnetcdff before -lnetcdf, so it looks like -L$(NETCDF)/lib
>> -lnetcdff -lnetcdf  However, this did not solve the problem either.
>>
>>
>>
>> Note that WPSV3.4.1 added an option for Linux x86_64 with gfortran
>> compiler when I typed ./configure, which was what I selected. I also tried
>> version 3.4, in which I modified the arch/configure.defaults file for my
>> system. However, this did not solve my problem either.
>>
>>
>>
>> If you have any suggestions on how to solve this problem, please let me
>> know. Thanks in advance!
>>
>>
>>
>> Best,
>>
>> Ying
>>
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> Message: 2
> Date: Tue, 21 Aug 2012 18:22:18 +0100
> From: "jpdiaz"<jpdiaz at ull.es>
> Subject: [Wrf-users] First CORDEX-WRF Workshop and CORWES/WRF4G
> 	hands-on	Tutorial
> To:<wrf-users at ucar.edu>
> Message-ID:<002401cd7fc1$847e2e50$8d7a8af0$@ull.es>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear colleagues,
>
>
>
> [Apologies for multiple-postings]
>
>
>
> We would like to bring to your attention the "First CORDEX-WRF Workshop and
> CORWES/WRF4G hands-on Tutorial" to be held from October 1st to 5th at
> University of La Laguna, Canary Islands, Spain. All the information can be
> accessed at:<http://corwes.webs.ull.es/workshop>
> http://corwes.webs.ull.es/workshop
>
>
>
> The main goal of the workshop is to bring together scientists using the WRF
> model in the CORDEX initiative or, more generally, using it as a dynamical
> downscaling tool in climate modeling.
>
>
>
> The objective is to produce a rigorous state-of-the-knowledge frame, to
> improve the coordination of the different efforts for every CORDEX region
> and engage in collaboration. The following aspects will be
>
> highlighted:
>
>
>
>    * Current state of the simulations in the different regions,
>
>    * Results,
>
>    * Needs of coordination,
>
>    * Database state,
>
>    * Common problems to be addressed and future plans.
>
>    * Tools and data to be shared
>
>    * Synergies between different users communities: modeling, impacts,
> policymakers,...
>
>
>
> The conference will consist of two segments. The first (1-3 October) will be
> devoted to a review of the status and main issues of climate modeling using
> WRF and will include invited and contributed papers and will foster open
> discussion. The second segment (4-5 October) will consist in hands-on
> laboratory sessions for training in WRF4G, CLWRF and post-processing tools.
>
>
>
> We invite you to consider attending and/or submitting a communication for
> this workshop and/or tutorial.
>
>
>
> With best regards,
>
>
>
> Juan P. Diaz, on behalf of the Organizing Committee
>
>
>
> ___________________________________________________
>
>
>
> Juan P. D?az-Glez.
> Universidad de La Laguna http://www.ull.es<blocked::http://www.ull.es/>
> Grupo de Observaci?n de la Tierra y la Atm?sfera - GOTA
> Dpto. F?sica B?sica, Fco. S?nchez s/n
> 38200 La Laguna.Tenerife. Spain
>
> Tfn: + 34 922318227
> Fax: + 34 922318228
> e-mail: jpdiaz at ull.es
>
> ___________________________________________________
>
>
>
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