[Numpy-discussion] MKL with 64bit crashes

Matthieu Brucher matthieu.brucher@gmail....
Thu Oct 15 10:06:05 CDT 2009


Hi,

You need to use the static libraries, are you sure you currently do?

Matthieu

2009/10/15 Kashyap Ashwin <Ashwin.Kashyap@thomson.net>:
> I followed the advice given by the Intel MKL link adviser
> (http://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/)
>
> This is my new site.cfg:
> mkl_libs = mkl_intel_ilp64, mkl_gnu_thread, mkl_core
>
> I also exported CFLAGS="-fopenmp" and built with the --fcompiler=gnu95.
> Now I get these errors on import:
> Running unit tests for numpy
> NumPy version 1.3.0
> NumPy is installed in
> /opt/Personalization/lib/python2.5/site-packages/numpy
> Python version 2.5.2 (r252:60911, Jul 22 2009, 15:33:10) [GCC 4.2.4
> (Ubuntu 4.2.4-1ubuntu3)]
> nose version 0.11.0
>
> *** libmkl_mc.so *** failed with error : libmkl_mc.so: undefined symbol:
> mkl_dft_commit_descriptor_s_c2c_md_omp
> *** libmkl_def.so *** failed with error : libmkl_def.so: undefined
> symbol: mkl_dft_commit_descriptor_s_c2c_md_omp
> MKL FATAL ERROR: Cannot load neither libmkl_mc.so nor libmkl_def.so
>
>
> Any hints?
>
> Thanks,
> Ashwin
>
>
>
> Your message:
>
> On Thu, Oct 15, 2009 at 8:04 AM, Kashyap Ashwin
> <Ashwin.Kashyap@thomson.net> wrote:
>> Hello,
>> I compiled numpy-1.3.0 from sources on Ubuntu-hardy, x86-64 (Intel)
> with
>> MKL.
>> This is my site.cfg:
>> [mkl]
>> # library_dirs = /opt/intel/mkl/10.0.1.014/lib/32/
>> library_dirs = /opt/intel/mkl/10.2.2.025/lib/em64t
>> include_dirs = /opt/intel/mkl/10.2.2.025/include
>> lapack_libs = mkl_lapack
>> #mkl_libs = mkl_core, guide, mkl_gf_ilp64, mkl_def, mkl_gnu_thread,
>> iomp5, mkl_vml_mc3
>> mkl_libs = guide, mkl_core, mkl_gnu_thread, iomp5, mkl_gf_ilp64,
>> mkl_mc3, mkl_def
>
> The order does not look right - I don't know the exact order (each
> version of the MKL changes the libraries), but you should respect the
> order as given in the MKL manual.
>
>> MKL ERROR: Parameter 4 was incorrect on entry to DGESV
>
> This suggests an error when passing argument to MKL - I believe your
> version of MKL uses the gfortran ABI by default, and hardy uses g77 as
> the default fortran compiler. You should either recompile everything
> with gfortran, or regenerate the MKL interface libraries with g77 (as
> indicated in the manual).
>
> cheers,
>
> David
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>



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