itaps-parallel Name mangling in MOAB

[Tim Tautges]

Hi all,
   On the mesh machine, I've changed the symbolic links gcc, g++, and 
gfortran in /usr/bin to point to the 4.3 series gnu compilers.  If you'd 
prefer to use the 4.2 series, just use gcc-4.2, etc.

Ting, this should work for you now.

- tim

txie at scorec.rpi.edu wrote:
> Hi Tim,
> 
> Thanks. But this file seems too long for me to understand in a short time.
> May you create a link to gfortran in /usr/bin/, just as gcc and g++?
> Thanks.
> 
> Ting
> 
> 
> 
>> In MOAB, we use an m4 macro to attempt to find compilers automatically;
> see ~tautges/ITAPS/SVN/Examples/m4/compiler.m4 on the mesh machine. This
> produces the F77 or FC variables, which can be over-ridden on the
> configure line.
>> - tim
>>
>> txie at scorec.rpi.edu wrote:
>>> Tim,
>>> I add one option FC=/usr/local/gcc-4.3/bin/gfortran in the configure, and
>>> it works now.
>>> But may you tell me how to fix this minor problem, not by setting
> option
>>> in the configure? Since other people may have the same problem in the
> tutorial, and then they will get undefined errors in compiling FMDB.
> Thanks.
>>> Regards,
>>> Ting
>>>> Tim,
>>>> Thanks for your reply. We can test them later.
>>>> I got another problem when I configured FMDB on mesh machine. It can not
>>>> find Fortran compiler on mesh machine, and the IMESH_FCDefs.h file is
> empty.  here is the output from the configure. Did I miss anything in
> configure file? I did not meet such problem on our SCOREC machine.
> Thanks.
>>>> appending configuration tag "F77" to libtool
>>>> checking for gfortran... no
>>>> checking for g95... no
>>>> checking for xlf95... no
>>>> checking for f95... no
>>>> checking for fort... no
>>>> checking for ifort... no
>>>> checking for ifc... no
>>>> checking for efc... no
>>>> checking for pgf95... no
>>>> checking for lf95... no
>>>> checking for ftn... no
>>>> checking for xlf90... no
>>>> checking for f90... no
>>>> checking for pgf90... no
>>>> checking for pghpf... no
>>>> checking for epcf90... no
>>>> checking for g77... no
>>>> checking for xlf... no
>>>> checking for f77... no
>>>> checking for frt... no
>>>> checking for pgf77... no
>>>> checking for cf77... no
>>>> checking for fort77... no
>>>> checking for fl32... no
>>>> checking for af77... no
>>>> checking whether we are using the GNU Fortran compiler... no
>>>> Ting
>>>>> Good question.  I think the best way to test this would be to
> configure/build both FMDB and MOAB and use 'nm' to check function
> signatures in libiMesh.a.  Even better would be to do that with
> different compilers that mangle names differently, and make sure the
> two
>>>>> still agree, but that probably is too much work for now.
>>>>> - tim
>>>>> txie at scorec.rpi.edu wrote:
>>>>>> Tim,
>>>>>> Thanks for your explanations. They are very clear. I have modified FMDB
>>>>>> like that. But I do not know how to test and use this, and also the
> iMesh-Defs.inc file. May you let me know how to test them if you
> have
>>>>>> time? Thanks.
>>>>>> Regards,
>>>>>> Ting
>>>>>>> You bet.  If you have any trouble, just send me or Jason email. - tim
>>>>>>> txie at scorec.rpi.edu wrote:
>>>>>>>> Tim,
>>>>>>>> Thanks a lot.
>>>>>>>> Ting
>>>>>>>>> Hi all,
>>>>>>>>>    See
>>>>>>>>> http://trac.mcs.anl.gov/projects/ITAPS/browser/MOAB/trunk/configure.in,
> lines 31-33.  If the script finds a fortran compiler, it runs
> that
>>>>>>>>> macro.  That generates definitions for FC_FUNC and FC_FUNC_.  Then,
>>>>>>>>> at
>>>>>>>>> line 869 in configure.in, AC_CONFIG_HEADERS is called to produce
> MBCN_FCDefs.h, which contains substituted definitions for FC_FUNC
> and
>>>>>>>>> FC_FUNC_.  Those macros are used in iMesh_protos.h
>>>>>>>>> (http://trac.mcs.anl.gov/projects/ITAPS/browser/MOAB/trunk/tools/iMesh/iMesh_protos.h)
> to mangle the imesh function names.
>>>>>>>>> If you're doing this in FMDB, it's probably easier to eliminate
> going
>>>>>>>>> through MBCN_FCDefs.h or equivalent and call AC_CONFIG_HEADERS
> directly
>>>>>>>>> on iMesh.h, though you'll have to make a iMesh.h.in file for that to
>>>>>>>>> work properly.
>>>>>>>>> Any questions, let me know.
>>>>>>>>> - tim
>>>>>>>>> --
>>>>>>>>> ================================================================
> "You will keep in perfect peace him whose mind is
>>>>>>>>>    steadfast, because he trusts in you."               Isaiah
> 26:3
>>>>>>>>>               Tim Tautges            Argonne National Laboratory
>>>>>>>>>           (tautges at mcs.anl.gov)      (telecommuting from
>>>>>>>>> UW-Madison)
>>>>>>>>>           phone: (608) 263-8485      1500 Engineering Dr.
>>>>>>>>>             fax: (608) 263-4499      Madison, WI 53706
>>>>>>> --
>>>>>>> ================================================================
> "You will keep in perfect peace him whose mind is
>>>>>>>    steadfast, because he trusts in you."               Isaiah 26:3
>>>>>>>               Tim Tautges            Argonne National Laboratory
>>>>>>>           (tautges at mcs.anl.gov)      (telecommuting from
> UW-Madison)
>>>>>>>           phone: (608) 263-8485      1500 Engineering Dr.
>>>>>>>             fax: (608) 263-4499      Madison, WI 53706
>>>>> --
>>>>> ================================================================ "You
> will keep in perfect peace him whose mind is
>>>>>    steadfast, because he trusts in you."               Isaiah 26:3
>>>>>               Tim Tautges            Argonne National Laboratory
>>>>>           (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
> phone: (608) 263-8485      1500 Engineering Dr.
>>>>>             fax: (608) 263-4499      Madison, WI 53706
>> --
>> ================================================================ "You
> will keep in perfect peace him whose mind is
>>    steadfast, because he trusts in you."               Isaiah 26:3
>>
>>               Tim Tautges            Argonne National Laboratory
>>           (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
> phone: (608) 263-8485      1500 Engineering Dr.
>>             fax: (608) 263-4499      Madison, WI 53706
>>
>>
> 
> 
> 
> 
> 
> 
> 

-- 
================================================================
"You will keep in perfect peace him whose mind is
   steadfast, because he trusts in you."               Isaiah 26:3

              Tim Tautges            Argonne National Laboratory
          (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
          phone: (608) 263-8485      1500 Engineering Dr.
            fax: (608) 263-4499      Madison, WI 53706