Im experiancing the same problem as noted above with latest version of MKL and VS2010.

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1>  ***** ClCompile (Win32 - Intel C++)
1>  stdafx.cpp
1>  eee.cpp
1>C:\libraries\eigen-eigen-304c88ca3aff\Eigen/src/Core/Assign_MKL.h(210): error : identifier "vmspowx_" is undefined
1>    EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmspowx_, float, float)
1>    ^
1> 
1>C:\libraries\eigen-eigen-304c88ca3aff\Eigen/src/Core/Assign_MKL.h(211): error : identifier "vmdpowx_" is undefined
1>    EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmdpowx_, double, double)
1>    ^
1> 
1>C:\libraries\eigen-eigen-304c88ca3aff\Eigen/src/Core/Assign_MKL.h(212): error : identifier "vmcpowx_" is undefined
1>    EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmcpowx_, scomplex, MKL_Complex8)
1>    ^
1> 
1>C:\libraries\eigen-eigen-304c88ca3aff\Eigen/src/Core/Assign_MKL.h(213): error : identifier "vmzpowx_" is undefined
1>    EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmzpowx_, dcomplex, MKL_Complex16)
1>    ^

I am having the exact same problem as the previous gentleman:

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c:\lib_eigen-3.1.0-beta1_universal\include\eigen\src/Core/Assign_MKL.h(212) : error C3861: 'vmspowx_': identifier not found
c:\lib_eigen-3.1.0-beta1_universal\include\eigen\src/Core/Assign_MKL.h(213) : error C3861: 'vmdpowx_': identifier not found
c:\lib_eigen-3.1.0-beta1_universal\include\eigen\src/Core/Assign_MKL.h(214) : error C3861: 'vmcpowx_': identifier not found
c:\lib_eigen-3.1.0-beta1_universal\include\eigen\src/Core/Assign_MKL.h(215) : error C3861: 'vmzpowx_': identifier not found


This happen with cl.exe from Visual Studio 2010 using MKL version 10.3 downloaded today.

HINT: if I use the include files from the MKL 10.3 linux version I downloaded 2 months ago. It works... no missing function!

Unfortunately I could not find what would cause the missing symbol with the latest MKL version... I have been looking all around both set of include files, and could not really find any difference around the missing wm*powx functions.

Could someone from Eigen take a look at this weird problem? Note that this thread has more than 1000 views... I assume a lot of "silent" people are having this same exact problem

It seems to be a MKL issue. I propose to disable these pow function on windows, and I'll report to MKL guys.

Also, can someone confirm that these pow functions are the only issue on windows to use MKL?

ggael, thx for the rapid reponse.

As far as I am concerned, the pow function is the only issue I am having so far with latest beta and MKL.

How do you suggest disabling those functions on Windows?

Thanks again for the great work.

S

I committed a fix, so you can just grab the devel branch: http://bitbucket.org/eigen/eigen/get/default.zip

gael

ggael,

I just gave a try on windows (I am mostly on linux 90%) with latest version 3.1.1. Seems like this problem is still here, probably because of a very small bug.

I guess you tried to solve the previously mentioned problem by using macros. Here is the code as of 3.1.1:

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// The vm*powx functions are not avaibale in the windows version of MKL.
#ifdef _WIN32
EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmspowx_, float, float)
EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmdpowx_, double, double)
EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmcpowx_, scomplex, MKL_Complex8)
EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmzpowx_, dcomplex, MKL_Complex16)
#endif


I assume it should have been #ifndef instead of #ifdef.

Thanks anyway!


S

oops!

I had to disable it in windows AND linux. In linux it gave me segfaults.