topic Aha, changed the call to MKL in Intel® oneAPI Math Kernel Library

Problem with upgrade from MKL 10 to 2013

Don_G_ — Tue, 26 Jan 2016 23:25:57 GMT

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?

Check the spelling of the

mecej4 — Wed, 27 Jan 2016 00:03:56 GMT

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.

Hi Don,

Ying_H_Intel — Wed, 27 Jan 2016 03:53:41 GMT

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

In VS on the Tools menu it

Don_G_ — Wed, 27 Jan 2016 11:32:42 GMT

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.

This is the form of the call

Don_G_ — Wed, 27 Jan 2016 11:53:29 GMT

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.

Aha, changed the call to MKL

Don_G_ — Wed, 27 Jan 2016 13:15:55 GMT

Aha, changed the call to MKL_Free_Buffers and that worked.

Hi Don,

Ying_H_Intel — Thu, 28 Jan 2016 01:40:12 GMT

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