[mpich-discuss] MPIC2 Configuration Error

[Saumil Patel]

Thank You this was helpful. I was able to fix the problem using option 3,
mentioned below.

On Mon, Mar 5, 2012 at 12:43 PM, Anthony Chan <chan at mcs.anl.gov> wrote:

>
> >From your c.txt:
>
> configure: error: ****  Incompatible Fortran and C Object File Types!  ****
> F77 Object File Type produced by "ifort  " is : : ELF 32-bit LSB
> relocatable, Intel 80386, version 1 (GNU/Linux), not stripped.
>  C  Object File Type produced by "gcc    -O2" is : : ELF 64-bit LSB
> relocatable, x86-64, version 1 (SYSV), not stripped.
>
> The error says that your Intel Fortran compiler ifort and GNU C compiler
> gcc generate incompatible binary format, one is 32-bit and the other is
> 64bits.  There are multiple ways to resolve this issue, it depends on what
> you
> have and what you need.
>
> 1) If you don't need Fortran binding support, you could disable it
>   by adding configure options: "--disable-f77 --disable-fc".
> 2) If you do need Fortran support, you have the complete intel compiler
> suite,
>   you could configure mpich2 with "CC=icc CXX=icpc F77=ifort FC=ifort" as
> part of configure command.
> 3) If you prefer to use GNU compiler suite, you could do "CC=gcc CXX=g++
> F77=gfortran FC=gfortran".
> 4) If you are OK with mixing GNU C/C++ with Intel Fortran compilers, then
> you could simply use
>   configure options "FFLAGS=-m64 FCFLAGS=-m64"
> 5) Since you have a 64bit machine, ifort should generate 64bit binary by
> default. May be you could
>   reconfigure ifort to generate 64bit object without -m64 (not sure if
> this is possible in your setup).
>
> A.Chan
>
> ----- Original Message -----
> > Hello,
> >
> > I am trying to install MPICH2 Release 1.4.1p1 on my personal laptop
> > workstation (Dell Precision M4500). In the CONFIGURE step 1.(d) I
> > received
> > the attached c.txt file. Can you please help me understand the error
> > at
> > the bottom of the file?
> >
> > Thank you,
> >
> > Saumil
> >
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