[mpich-discuss] Re: Getting MPICH2 to find/use g95 fortran

[Anthony Chan]

Configure cann't configure fortran because incompatibility between g95
and gcc. It seems the gcc is 4.1 and g95 is 4.0.3.  Since you want to use 
g95, is there a gcc under /usr/local/g95/g95-install/bin ?
or /usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-gcc.
If so, try configure with additional parameter: 
CC=/usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-gcc

A.Chan

On Wed, 9 Apr 2008, PattiMichelle wrote:

> Pavan:
>
> Thank you very much for offering to look at the output of my install...
> I had a look in the configure.in file and saw references to g95, so I
> assume it will be looking for it.   Please find the logfiles (with
> slightly different names) attached and let me know if you are unable to
> receive them!
>
> Thank You,
> Patti
>
> Pavan Balaji wrote:
>>
>> It looks like configure failed. Can you send the complete configure
>> output? If you are using bash, you can do:
>>
>>   $ ./configure --prefix=/usr/local/mpich2/mpich2-install 2>&1 | tee
>> configure.log
>>
>>   $ make 2>&1 | tee make.log
>>
>>   $ make install 2>&1 | tee make_install.log
>>
>> If you are using a different shell, you can refer to the README in the
>> top-level directory.
>>
>>  -- Pavan
>>
>> On 04/09/2008 12:18 AM, PattiMichelle wrote:
>>> Thank you again, Pavan.  Ah!  I see - the F90 and F77 were inputs to
>>> the configure script.  Well, it seemed to go well, but the system
>>> cannot find mpif77 or mpif90 - I also tried searching the file system
>>> but no luck.
>>>
>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 #
>>> F90=/usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-g95
>>> F77=/usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-g95
>>> ./configure --prefix=/usr/local/mpich2/mpich2-install >
>>> Configure_MPICH2stdio.txt
>>> configure: WARNING: Structures containing long doubles may be aligned
>>> differently from structures with floats or longs.  MPICH2 does not
>>> handle this case automatically and you should avoid assumed extents
>>> for structures containing float types.
>>> configure: error: Fortran integers and C ints are not the same size.
>>> The current Fortran binding does not support this case.  Either force
>>> the Fortran compiler to use integers of 4 bytes, or use --disable-f77
>>> on the configure line for MPICH2.
>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 # make >
>>> Make_MPICH2stdio.txt
>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 # make install >
>>> MakeInst_MPICH2stdio.txt
>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 # mpif77
>>> bash: mpif77: command not found
>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 # mpif90
>>> bash: mpif90: command not found
>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 #
>>>
>>> This output from make install:
>>> /usr/bin/install -c -m 644 mpicc.conf
>>> /usr/local/mpich2/mpich2-install/etc/mpicc.conf
>>> if [ -s mpicxx ] ; then /usr/bin/install -c  mpicxx
>>> /usr/local/mpich2/mpich2-install/bin/mpicxx ; fi
>>> if [ -s mpif77 ] ; then /usr/bin/install -c  mpif77
>>> /usr/local/mpich2/mpich2-install/bin/mpif77 ; fi
>>> if [ -s mpif90 ] ; then /usr/bin/install -c  mpif90
>>> /usr/local/mpich2/mpich2-install/bin/mpif90 ; fi
>>> if [ -s mpicxx.conf ] ; then /usr/bin/install -c -m 644 mpicxx.conf
>>> /usr/local/mpich2/mpich2-install/etc/mpicxx.conf ; fi
>>> if [ -s mpif77.conf ] ; then /usr/bin/install -c -m 644 mpif77.conf
>>> /usr/local/mpich2/mpich2-install/etc/mpif77.conf ; fi
>>> if [ -s mpif90.conf ] ; then /usr/bin/install -c -m 644 mpif90.conf
>>> /usr/local/mpich2/mpich2-install/etc/mpif90.conf ; fi
>>>
>>> ...which I believe is supposed to put mpif77 in the
>>> /usr/local/mpich2/mpich2-install/bin directory, but I don't see it
>>> there.
>>>
>>>
>>> Pavan Balaji wrote:
>>>>
>>>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 # alias f77=g95
>>>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 # alias f90=g95
>>>>
>>>> You don't need to set these.
>>>>
>>>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 #
>>>>> F90=/usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-g95
>>>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 #
>>>>> F77=/usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-g95
>>>>
>>>> These should be on the same command line as the configure.
>>>>
>>>>> PattiDesktop:/usr/local/mpich2/mpich2-1.0.7 # ./configure
>>>>> --prefix=/usr/local/mpich2/mpich2-install > Configure_MPICH2stdio.txt
>>>>
>>>> Use the following command line:
>>>>
>>>>   $ F90=/usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-g95
>>>> F77=/usr/local/g95/g95-install/bin/x86_64-suse-linux-gnu-g95
>>>> ./configure --prefix=/usr/local/mpich2/mpich2-install
>>>>
>>>>  -- Pavan
>>>>
>>>
>>
>
>