topic So in which of the MKL in Intel® oneAPI Math Kernel Library

Link error 2019 accessing _DPOSV

Don_G_ — Mon, 03 Apr 2017 16:15:27 GMT

I am converting a fortran dll library project from an earlier version of the Microsoft IDE to VS 2008 using Intel Fortran Version 10.0.3.24 and the corresponding MKL. When the linker step of the project runs, I get missing routines:

1>MTXSOLVE.obj : error LNK2019: unresolved external symbol _DPOSV referenced in function MTXSOLVE
1>MTXSOLVE.obj : error LNK2001: unresolved external symbol _DSPTRF
1>MTXSOLVE.obj : error LNK2001: unresolved external symbol _DSPTRS
1>MTXSOLVE.obj : error LNK2001: unresolved external symbol _DPPSVDPOSV,

I think these are LAPACK routines in the MKL. I am building the IA32 version of the dll and I explicitly include the path to the ia23 MKL lib routines. Where did I go wrong? Here is the linker command line.

/OUT:"Debug/Upid_Fortran.dll" /INCREMENTAL:NO /NOLOGO /LIBPATH:"C:\Program Files\Intel\MKL\10.0.3.021\ia32\lib" /MANIFEST /MANIFESTFILE:"C:\Users\goldend\Documents\Development\UPID\trunk\UPID_Fortran\debug\upid_fortran.dll.intermediate.manifest" /DEBUG /PDB:"Debug/Upid_Fortran.pdb" /SUBSYSTEM:WINDOWS /IMPLIB:"Debug/Upid_Fortran.lib" /DLL kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib

You told the linker where to

mecej4 — Mon, 03 Apr 2017 23:48:25 GMT

You told the linker where to find the MKL libraries by giving it the MKL library path, but you did not tell it what to include in the link: specifically, you should specify the MKL library that you want to link with.

The MKL link line advisor is a helpful tool for such purposes.

So in which of the MKL

Don_G_ — Tue, 04 Apr 2017 22:14:24 GMT

So in which of the MKL libraries do these LAPACK routines reside?

all versions of MKL contains

Gennady_F_Intel — Wed, 05 Apr 2017 04:31:53 GMT

all versions of MKL contains these Lapack's routines. You may have a look ea an example in MKL 2017.

So...I added mkl_lapack.lib

Don_G_ — Wed, 05 Apr 2017 16:59:20 GMT

So...I added mkl_lapack.lib to my linker inputs and I ended up with this: >ipo: warning #11023: file format not recognized for mkl_lapack.lib

mecej4 ( post#2) recommended

Gennady_F_Intel — Wed, 05 Apr 2017 19:38:45 GMT

mecej4 ( post#2) recommended to use MKL Linker Adviser - https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor. Could you check how to link and add all necessarily libs

Thanks - the Linker Adviser

Don_G_ — Wed, 05 Apr 2017 22:20:08 GMT

Thanks - the Linker Adviser worked. Despite the fact that I could not figure out how to add the compiler options: -I"%MKLROOT%"\include