topic Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU in Intel® oneAPI Math Kernel Library

MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINUX em64t

AndrewC — Tue, 26 Jun 2007 19:50:56 GMT

I think something slipped through the QA cracks.
I cannot link my shared library with the mkl solver lib on Linux em64t. This used to work fine under MKL 9.0.
libmkl_solver.a is a static library, but that should not prevent it being linked as part of a shared library. Looks like someone forgot to compile it fPIC.

ld: /opt/intel/mkl/9.1/lib/em64t/libmkl_solver.a(util.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/opt/intel/mkl/9.1/lib/em64t/libmkl_solver.a: could not read symbols: Bad value

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

Intel_C_Intel — Tue, 26 Jun 2007 20:18:05 GMT

This sounds like an error and should be submitted to your Premier account at http://premier.intel.com. If you do that this issue will get logged into the system, get thoroughly checked out, and tracked. I would appreciate your submitting this to start the evaluation and repair, if appropriate, process.

Thanks,

Bruce

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

AndrewC — Tue, 26 Jun 2007 20:30:08 GMT

I have submitted a problem report

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

Intel_C_Intel — Tue, 26 Jun 2007 21:11:56 GMT

Thanks. I think is the best way for this issue.

Bruce

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

Tony_Garratt — Thu, 07 Feb 2008 00:22:15 GMT

We are also seeing a very similar problem on linux 64bit but we are using MKL 10.0.012 - which presumably means this bug has still not been fixed?

Thank you!

Tony

ld: ../lib/libguide.a(kmp_csupport.o): relocation R_X86_64_32 can not be used when making a shared object; recompile with -fPIC

../lib/libguide.a: could not read symbols: Bad value

make: *** [../bin/libCK.so] Error 1

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

AndrewC — Thu, 07 Feb 2008 01:01:42 GMT

The bug I saw was definitely fixed. You probably need to link to the shared library version of libguide.

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

Tony_Garratt — Thu, 07 Feb 2008 01:52:48 GMT

Thank you for the quick reply. We want to use static libraries to avoid having to ship re-distributables. Is there a way around this that doesnt involve shared libraries please?

Thank you

Tony

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

AndrewC — Thu, 07 Feb 2008 02:07:13 GMT

The only work around I can think of if you absolutely do not want to ship libguide.so would be to ask Intel nicely to compile libguide.a with -fPIC. It does seem like an oversight on their part.

Re: MKL 9.1 Linking a shared lib that uses mkl_solver.a on LINU

Todd_R_Intel — Tue, 17 Jun 2008 22:25:38 GMT

To address this bug the threading libraries were built with -fPIC in Update 3 which was made available in April.
-Todd