Re: [Mingw-w64-public] Mingw + mkl

[Tony T. <to...@lo...>]

On 15 May 2010 05:28, Doug Semler <dou...@gm...> wrote:
> 2010/5/14 Tony Theodore <to...@lo...>:
>> 2010/5/15 Mario Rodríguez <sh...@gm...>:
>>> 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!
>>
>> 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/
>>
>
> No, the Mingw 64 target is  llp64, not ilp64...it's 32bit longs for
> x64 targets. (sizeof(long) == 4, sizeof(long long) == 8, sizeof(void*)
> == 8)...ilp64 is sizeof(long) == 8, which is wrong...

Ah, I see, thanks. It's just that Intel recommend ilp64, even though
they ship both libs - maybe they should distribute the source ;)

Tony