MKL static linking and /Qopenmp

alcallejo — Mon, 02 Apr 2012 10:37:16 GMT

Hello everyone,

My environment is: Windows 7 64-bit, VS9,Composer XE 2011 SP1.

I'm trying to link MKL following the link line advisor. Everything goes alright if I link dynamically:

mkl_intel_lp64_dll.lib

mkl_intel_thread_dll.lib

mkl_core_dll.lib

But if I try to link statically with

mkl_intel_lp64.lib

mkl_intel_thread.lib

mkl_core.lib

/Qopenmp

I get the following linker error:

[plain]LINK : warning LNK4044: unrecognized option '/Qopenmp'; ignored 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_global_thread_num 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol __kmpc_global_thread_num 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol __kmpc_global_thread_num 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_ok_to_fork 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol __kmpc_ok_to_fork 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol __kmpc_ok_to_fork 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_push_num_threads 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol __kmpc_push_num_threads 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol __kmpc_push_num_threads 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_fork_call 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol __kmpc_fork_call 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol __kmpc_fork_call 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_serialized_parallel 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol __kmpc_serialized_parallel 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol __kmpc_serialized_parallel 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_end_serialized_parallel 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol __kmpc_end_serialized_parallel 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol __kmpc_end_serialized_parallel 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol omp_get_num_threads 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol omp_get_num_threads 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol omp_get_num_threads 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_single 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_end_single 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_barrier 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol omp_get_thread_num 2>mkl_intel_thread.lib(dswap_omp.obj) : error LNK2001: unresolved external symbol omp_get_thread_num 2>mkl_intel_thread.lib(dgemv_omp.obj) : error LNK2001: unresolved external symbol omp_get_thread_num 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_for_static_init_8 2>mkl_intel_thread.lib(dgemm_drv.obj) : error LNK2001: unresolved external symbol __kmpc_for_static_fini 2>mkl_intel_thread.lib(mkl_threading.obj) : error LNK2001: unresolved external symbol omp_in_parallel 2>mkl_intel_thread.lib(mkl_threading.obj) : error LNK2001: unresolved external symbol omp_get_max_threads 2>mkl_intel_thread.lib(mkl_threading.obj) : error LNK2001: unresolved external symbol omp_get_num_procs[/plain]

I heard it has something to do with OpenMP linking, but I have no idea what I'm missing here. By the way: the way I include the /Qopenmp option is through the options in Linker > Command Line > Additional options.

Any help is highly appreciated.

Regards,

Alfonso

MKL static linking and /Qopenmp

Gennady_F_Intel — Mon, 02 Apr 2012 11:55:37 GMT

replace/Qopenmp by libiomp5md.lib into your linking line.

please refer more details about threading libraries into mkl user's guide.

MKL static linking and /Qopenmp

TimP — Mon, 02 Apr 2012 16:08:27 GMT

/Qopenmp is a compiler option, equivalent to the properties setting for enabling OpenMP. That would have the effect of including libiomp5md.lib as a linker dependency, but would also activate any OpenMP directives included in your source code.

topic MKL static linking and /Qopenmp in Intel® oneAPI Math Kernel Library

MKL static linking and /Qopenmp

MKL static linking and /Qopenmp

MKL static linking and /Qopenmp