[MOAB-dev] Disable fortran in moab-5.0.0

Thu Nov 9 21:52:10 CST 2017

Hi Vijay,

Is it possible to compile with the optional Eigen dependency, thus not 
relying on BLAS/LAPACK at all, and also avoiding the need for FC?

I didn't think so, but this message seems to imply that it is.

Paul

On 11/09/2017 03:22 PM, Vijay S. Mahadevan wrote:
> We used to have Eigen as a required dependency, and many of users
> didn't specifically like this (especially distributing our own copy of
> Eigen causing header/version conflicts). Its much easier to impose
> BLAS/LAPACK as a dependency since on 90% of all machines, the
> libraries are available, and now Eigen is an optional dependency. The
> only downside is that the symbol is indecipherable without a proper FC
> compiler. We can try something less rigorous like grepping the symbol
> table of the library etc. If this is a very hard restriction, I can
> look into doing a different configure check for the BLAS symbols.
>
> Will keep you updated.
>
> Vijay
>
> On Thu, Nov 9, 2017 at 2:57 PM, Lorenzo Botti <bottilorenzo at gmail.com> wrote:
>> Dear all,
>> thank you for the prompt reply.
>> May I ask you why we need blas/lapack. I've seen that you also have an eigen
>> configure option. Maybe some blas/lapack functionality could be replaced by
>> an eigen alternative for those who prefer to avoid fortran linking.
>> Of coarse a OSX fix would be welcome!
>> Bests
>> Lorenzo
>>
>>
>> On Nov 9, 2017 17:11, "Vijay S. Mahadevan" <vijay.m at gmail.com> wrote:
>>
>> Hi Lorenzo,
>>
>> Yes like Paul mentioned, we require BLAS/LAPACK libraries now for
>> configuring MOAB, and that unfortunately imposes requirements on the
>> Fortran compiler to see how the symbol mangling works.
>>
>> I am unsure whether we can make an exception with OSX here since the
>> -framework vecLib linker options should take care of everything we
>> need. I'll play with this today and let you know whether we can push a
>> fix for this right away (specific for OSX).
>>
>> Vijay
>>
>> On Thu, Nov 9, 2017 at 6:46 AM, Paul Wilson <paul.wilson at wisc.edu> wrote:
>>> Hello Lorenzo
>>>
>>> As of v5.0 MOAB requires FORTRAN to link to lapack/blas.  I discovered
>>> this
>>> issue with building and the master branch does have this change in the
>>> CMAKE
>>> files.
>>>
>>> Paul
>>>
>>> -- ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ --
>>> Paul P.H. Wilson
>>> Grainger Professor of Nuclear Engineering
>>> 608-263-0807
>>> paul.wilson at wisc.edu
>>> 443 Engineering Research Bldg
>>> 1500 Engineering Dr, Madison, WI 53706
>>> calendar: http://go.wisc.edu/pphw-cal
>>>
>>> Computational Nuclear Engineering Research Group
>>> cnerg.engr.wisc.edu
>>>
>>> [sent from my iPad]
>>>
>>> On Nov 9, 2017, at 03:57, Lorenzo Botti <bottilorenzo at gmail.com> wrote:
>>>
>>> Dear all,
>>> I’d like to move to the latest moab but I’m having trouble disabling
>>> fortran.
>>> I tried to modify compiler.m4 but it seems that this is not enough, see
>>> below
>>>
>>> dlm249-190:moab-5.0.0 digihabia$ ./configure --disable-fortran
>>> --disable-imesh --with-mpi=/Users/digihabia/src2/openmpi-3.0.0/openmpi/
>>> --download-hdf5 --prefix=/Users/digihabia/src2/moab-5.0.0/moab/
>>> checking build system type... x86_64-apple-darwin17.2.0
>>> checking host system type... x86_64-apple-darwin17.2.0
>>> checking target system type... x86_64-apple-darwin17.2.0
>>> checking for a BSD-compatible install... /usr/bin/install -c
>>> checking whether build environment is sane... yes
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>>> checking for gcc... /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc
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>>> checking for suffix of object files... o
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>>> accepts -g... yes
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>>> to accept ISO C89... none needed
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>>> understands -c and -o together... yes
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>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc... gcc3
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>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc -E
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>>> checking how to run the C++ preprocessor...
>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx -E
>>> checking how to get verbose linking output from ... configure: WARNING:
>>> compilation failed
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>>> checking for Fortran 77 libraries of ...
>>> checking how to get verbose linking output from ... configure: WARNING:
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>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc...
>>> /Library/Developer/CommandLineTools/usr/bin/ld
>>> checking if the linker (/Library/Developer/CommandLineTools/usr/bin/ld) is
>>> GNU ld... no
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>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc
>>> supports
>>> -fno-rtti -fno-exceptions... yes
>>> checking for /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc option
>>> to produce PIC... -fno-common -DPIC
>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc PIC
>>> flag
>>> -fno-common -DPIC works... yes
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>>> flag -static works... no
>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc
>>> supports
>>> -c -o file.o... yes
>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc
>>> supports
>>> -c -o file.o... (cached) yes
>>> checking whether the
>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicc
>>> linker (/Library/Developer/CommandLineTools/usr/bin/ld) supports shared
>>> libraries... yes
>>> checking dynamic linker characteristics... darwin17.2.0 dyld
>>> checking how to hardcode library paths into programs... immediate
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>>> checking how to run the C++ preprocessor...
>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx -E
>>> checking for ld used by
>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx...
>>> /Library/Developer/CommandLineTools/usr/bin/ld
>>> checking if the linker (/Library/Developer/CommandLineTools/usr/bin/ld) is
>>> GNU ld... no
>>> checking whether the
>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx
>>> linker (/Library/Developer/CommandLineTools/usr/bin/ld) supports shared
>>> libraries... yes
>>> checking for /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx
>>> option
>>> to produce PIC... -fno-common -DPIC
>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx PIC
>>> flag
>>> -fno-common -DPIC works... yes
>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx static
>>> flag -static works... no
>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx
>>> supports
>>> -c -o file.o... yes
>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx
>>> supports
>>> -c -o file.o... (cached) yes
>>> checking whether the
>>> /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx
>>> linker (/Library/Developer/CommandLineTools/usr/bin/ld) supports shared
>>> libraries... yes
>>> checking dynamic linker characteristics... darwin17.2.0 dyld
>>> checking how to hardcode library paths into programs... immediate
>>> checking whether byte ordering is bigendian... no
>>> checking for gunzip... gunzip -c
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>>> checking if C++ compiler supports template class specialization... yes
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>>> checking if /Users/digihabia/src2/openmpi-3.0.0/openmpi//bin/mpicxx
>>> works...
>>> yes
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>>> checking for dummy main to link with Fortran libraries... none
>>> checking for Fortran name-mangling scheme... configure: error: in
>>> `/Users/digihabia/src2/moab-5.0.0':
>>> configure: error: cannot compile a simple Fortran program
>>> See `config.log' for more details
>>

-- 
-- ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ --

Paul P.H. Wilson
Grainger Professor of Nuclear Engineering
608-263-0807
paul.wilson at wisc.edu
443 Engineering Research Bldg
1500 Engineering Dr, Madison, WI 53706
calendar: http://go.wisc.edu/pphw-cal

Computational Nuclear Engineering Research Group
cnerg.engr.wisc.edu