On Tue, 2009-03-17 at 12:12 +0900, Ei-ji Nakama wrote:
> Hi
>
> > I have seen a lot of problems from people trying to compile R with
> > MKL. So I am writing my experience in case it helps and to ask one
> > question. I installed R-2.8.1.patched in Ubuntu 9.04 (gcc 4.3.3) using
> > MKL 10.1.1.019.
>
> Do you use gcc and gfortran?
>
> > I configured correctly (following MKL userguide) with :
> >
> > sudo ./configure --with-blas="-I/opt/intel/mkl/10.1.1.019/include
> > -L/opt/intel/mkl/10.1.1.019/lib/em64t -lmkl_intel_lp64
> > -lmkl_intel_thread -lmkl_core -liomp5 -lpthread"
> > --with-lapack="-I/opt/intel/mkl/10.1.1.019/include
> > -L/opt/intel/mkl/10.1.1.019/lib/em64t -lmkl_intel_lp64
> > -lmkl_intel_thread -lmkl_core -liomp5 -lpthread"
>
> cited reference https://svn.r-project.org/R/trunk/doc/manual/R-admin.texi
> | You are strongly encouraged to read the MKL User's Guide
> | <snip>
> | @example
> | MKL=" -...@{mkl_lib_path@} \
> | -Wl,--start-group \
> | $...@{mkl_lib_path@}/libmkl_gf_lp64.a \
> | $...@{mkl_lib_path@}/libmkl_gnu_thread.a \
> | $...@{mkl_lib_path@}/libmkl_core.a \
> | -Wl,--end-group \
> | -liomp5 -lpthread"
> | @end example
>
> However, It is a little different.( -lgomp and configure line)
>
> MKL=" -...@{mkl_lib_path@} \
> -Wl,--start-group \
> $...@{mkl_lib_path@}/libmkl_gf_lp64.a \
> $...@{mkl_lib_path@}/libmkl_gnu_thread.a \
> $...@{mkl_lib_path@}/libmkl_core.a \
> -Wl,--end-group \
> -lgomp -lpthread"
> ./configure --with-blas="$MKL" --with-lapack="$MKL"
Yes I see. If you are statically linking to MKL, you want to link to the
GNU OMP runtime for portability. Sorry about that.
> > But in order to compile had to edit src/modules/lapack/vecLibg95c.c
> > and comment out the include. Weird, since I am not building for Mac.
>
> Please note the thing that ABI of fortran is different with Intel compiler
> and GNU compiler.
> difficult to detect the mistake.
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