2010/5/14 Mario Rodríguez <shi...@gmail.com>:
> Kai Tietz wrote:
>>
>> 2010/5/14 Tony Theodore <to...@logyst.com>:
>>
>>>
>>> 2010/5/15 Mario Rodríguez <shi...@gmail.com>:
>>>
>>>>
>>>> Hi,
>>>>
>>>> I want to use *MKL*`s lapack & BLAS in my *mingw* project.
>>>>
>>>> I use this libraries for 32 bits linking: mkl_intel_c_dll.lib,
>>>> mkl_intel_thread_dll.lib, mkl_core_dll.lib. In 32b arquitecture, it´s
>>>> enought adding this files names at the end of the g++ linking line.
>>>>
>>>> But in 64 bits (using mingw-w64 project), it show me undefined
>>>> references in all blas/lapack calls. I use:
>>>>
>>>> -mkl_intel_lp64_dll.lib
>>>> -mkl_intel_thread_dll.lib
>>>> -mkl_core-dll.lib
>>>>
>>>> It is possible to do? Maybe using dlltool/reimp or some tool similar?
>>>>
>>>> Thanks in advance!
>>>>
>>
>> Well, you need this DLL and the import-library (you can use gendef and
>> dlltool for import-library generation). You can't combine 32-bit and
>> 64-bit binaries. No way.
>>
>>
>>>
>>> Try the link advisor [1], selecting Linux to see the gcc options, to
>>> get some hints - and see the common errors [2] . Note also, you
>>> probably want ilp64 not lp64.
>>>
>>> Cheers,
>>>
>>> Tony
>>>
>>> [1] http://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/
>>> [2]
>>> http://software.intel.com/en-us/articles/intel-math-kernel-library-intel-mkl-for-linux-common-linking-errors/
>>>
>>
>> What is ilp64 (sizeof (int) == sizeof (long) == sizeof (void *) == 8)
>> ??!? x64 is llp64 (sizeof (long long) == sizeof (void *) == 8).
>>
>> Cheers,
>> Kai
>>
>
> All this 3 files are x64 binaries. Intel provides you:
>
> -mkl_intel_lp64_dll.lib and mkl_intel_lp64.lib
> -mkl_intel_thread_dll.lib and mkl_intel_thread.lib (64 bit version)
> -mkl_core_dll.lib and mkl_core.lib (64 bit version)
>
> and they ask you to link against the _dll ones.
> I have not right here the exactly error, but it`s only an undefined
> reference to each lapack or blas call. I`m using gcc 4.5 (experimental)
> version
>
>
Ok, so it is most likely the underscoring issue here. You will need an
updated version of the toolchain (at least 4.5.x branch based). The
issue was recently corrected for binutils trunk and gcc 4.6 and then
backported to 4.5.x branch.
Maybe you can take Sezero's toolchain, but you should wait for new
version as we just detected for current an regression.
Regards,
Kai
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