topic Re: IA-32 vs Intel(R)64 Applications in Intel® oneAPI Math Kernel Library

IA-32 vs Intel(R)64 Applications

George_P_ — Wed, 18 Feb 2009 23:58:52 GMT

If I install the MKL using nmake plat=win32 lib and build an application for IA-32 architecture everything works fine.
If I install the MKL using nmake plat=win32e lib and build for the Intel 64 architecture I get the following linker errors:

error LNK2019: unresolved external symbol DGESVD referenced in function DGESVD_MKL95
etc

Has anyone had any experience with this process or this form of error message?

Thanks
George

Re: IA-32 vs Intel(R)64 Applications

Gennady_F_Intel — Thu, 19 Feb 2009 03:43:05 GMT

How are you linking your application?
What MKL version are you using?

--GIF

Re: IA-32 vs Intel(R)64 Applications

Vladimir_Koldakov__I — Thu, 19 Feb 2009 04:07:37 GMT

It's really linking problem.
According to the MKL 10.1User Guide, Linking Applications / Linking Examples

For IA32 architecture:
Static linking of user's code myprog.f, Fortran 95 LAPACK interface, and parallel Intel MKL supporting cdecl interface:

ifort myprog.f mkl_lapack95.lib mkl_intel_c.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib

For Intel 64 architecture:
Static linking of user's code myprog.f, Fortran 95 LAPACK interface, and parallel Intel MKL supporting LP64 interface:

ifort myprog.f mkl_lapack95.lib mkl_intel_lp64.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib

Thanks,
Vladimir

Re: IA-32 vs Intel(R)64 Applications

George_P_ — Thu, 19 Feb 2009 05:34:24 GMT

Quoting - Vladimir Koldakov (Intel)

It's really linking problem.
According to the MKL 10.1User Guide, Linking Applications / Linking Examples

For IA32 architecture:
Static linking of user's code myprog.f, Fortran 95 LAPACK interface, and parallel Intel MKL supporting cdecl interface:

ifort myprog.f mkl_lapack95.lib mkl_intel_c.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib

For Intel 64 architecture:
Static linking of user's code myprog.f, Fortran 95 LAPACK interface, and parallel Intel MKL supporting LP64 interface:

ifort myprog.f mkl_lapack95.lib mkl_intel_lp64.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib

Thanks,
Vladimir

Vladimir

Thanks for that - the libiomp5md.lib file and a couple of other files were not required for linking for IA-32 and I missed that

Regards