Problem with upgrade from MKL 10 to 2013

[Don_G_]

What I used Visual Studio 2010 with MKL 2013 installed to upgrade a complex C#/Fortran solution  from Visual Studio 2008/Intel fortran 10.  When I build the project, I get an error linking the Fortran DLL.   The error is LNK2019: unresolved external symbol _MKL_FREEBUFFERS referenced in function _RUN_CTRL.

What can I do to resolve this error?

[mecej4]

Check the spelling of the routine in the manual for the MKL version that is being used. I believe that it should be mkl_free_buffers.

[Ying_H_Intel]

Hi Don, 

Yes, could you please find the exact MKL version, MKL library being used or provide us a small test case?

And the latest version is MKL 11.3 update 1. and the documentation was 

https://software.intel.com/en-us/node/471174

Syntax

call mkl_free_buffers

Fortran Include Files/Modules

• Include file: mkl.fi
• Module (compiled): mkl_service.mod
• Module (source): mkl_service.f90
  
  Best Regards,
  Ying

[Don_G_]

In VS on the Tools menu it shows Intel Composer XE 2013 ​SP1.  I am not sure how to get the exact MKL library version.

[Don_G_]

This is the form of the call to freebuffers in the fortran module:

    CALL MKL_FreeBuffers()

So I added the include statement:     

INCLUDE 'mkl.fi'

at the top of the module.

  This did not solve the problem.

[Don_G_ · Accepted solution]

Aha, changed the call to MKL_Free_Buffers  and that worked.

[Ying_H_Intel]

Hi Don, 

Great news!  as mejec mentioned, we change the API name MKL_FreeBuffers() in these version  between Intel Composer XE 2013 ​SP1 and Intel fortran 10) . You can open the mkl.h or mkl.fi , which is supposed in <MKl insatll direcory>\include\mkl.h|mkl.fi  to find the exact version.

and check the function's declaration in mkl_service.fi. for example

 INTERFACE

      subroutine MKL_FREE_BUFFERS()
      END
      END INTERFACE.

Best Regards,

Ying