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Subject: Re: [OMPI users] compilation with intel fortran compiller problem
From: Mostyn Lewis (Mostyn.Lewis_at_[hidden])
Date: 2008-01-26 14:57:54


Yes, Intel 10.0 (and some say 10.1) have this problem with gcc 4.2.X (which
it is using) - it works with 4.1.2 as in SuSE SLES 10.

A workaround is to include in your flags (CXXFLAGS, presumably), the following:

-D "__sync_fetch_and_add(ptr,addend)=_InterlockedExchangeAdd(const_cast<void*>(reinterpret_cast<volatile void*>(ptr)), addend)"

Regards,
Mostyn

On Sat, 26 Jan 2008, Andrei Neamtu wrote:

> Hello,
>
> I will be quick:
>
> I want to compile open-mpi using Intel C, C++, Fortran compillers suite.
> With Fortran and C compiler it works fine but when I enable C++ Intel
> compiler got errors.
>
> Here is what I done:
>
> #define the environmet variables
>
> shell> export FC=/opt/intel/fce/10.1.008/bin/ifort
> shell> export F77=/opt/intel/fce/10.1.008/bin/ifort
> shell> export CC=/opt/intel/cce/10.1.008/bin/icc
> shell> export CXX=/opt/intel/cce/10.1.008/bin/icpc
>
> #after that issue the configure script
>
> shell> ./configure
>
>
> It works fine until the C++ compiler setup and it ends up with the message:
>
>
> *** C++ compiler and preprocessor
> checking whether we are using the GNU C++ compiler... yes
> checking whether /opt/intel/cce/10.1.008/bin/icpc accepts -g... yes
> checking dependency style of /opt/intel/cce/10.1.008/bin/icpc... gcc3
> checking how to run the C++ preprocessor... /opt/intel/cce/10.1.008/bin/icpc -E
> checking for the C++ compiler vendor... intel
> checking if C++ compiler works... no
> **********************************************************************
> * It appears that your C++ compiler is unable to produce working
> * executables. A simple test application failed to properly
> * execute. Note that this is likely not a problem with Open MPI,
> * but a problem with the local compiler installation. More
> * information (including exactly what command was given to the
> * compiler and what error resulted when the command was executed) is
> * available in the config.log file in this directory.
> **********************************************************************
> configure: error: Could not run a simple C++ program. Aborting.
>
>
> I also attached the config.log file.
>
> I am new to open-mpi (I used lam-mpi and GNU compilers) but I want to
> use the Intel compilers because they give more than 20% performance
> gaining in my specific parallel application.
>
> Any help or suggestion will be greatly appreciated !!!!
>
> Best regards,
> Andrei
>


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