topic Re: VML crashes in DLL projects in Intel® oneAPI Math Kernel Library

VML crashes in DLL projects

w32 — Thu, 11 Jan 2007 00:12:46 GMT

My custom DLL contains comuptation with VML functions call. MKL 9.0 is linked to DLL throw mkl_c.lib and libguide.lib.
But when app calls my DLL computation code, process is crached in any vml functions. Debuger shows exception (access violation) in TLS read code.

Example (vml code for cpu specific GetMode function):

mov ecx,dword ptr ds:[2CC31BCh] (this is __tls_index)
mov edx,dword ptr fs:[2Ch]
mov ebx,dword ptr [edx+ecx*4] (exception (ecx == 0 and edx == 0))

Can you help me?

Re: VML crashes in DLL projects

Andrey_N_Intel — Thu, 11 Jan 2007 15:13:28 GMT

Thank you for your question. Could youlink your DLL to mkl_c_dll.lib? This should help. Please, let us know how it works for you.

Re: VML crashes in DLL projects

w32 — Thu, 11 Jan 2007 21:13:30 GMT

Thanks, mkl_c_dll.lib resolves problem.

But now my DLL use dynamic MKL dlls and total size of application is very large (~40Mb). How can i decrease size?

Re: VML crashes in DLL projects

Andrey_N_Intel — Thu, 11 Jan 2007 21:43:40 GMT

If your application contains calls to VML functions only you might want to link your DLL tomkl_vml_*.dll, msvcr71.dll,and libguide40.dll. Please, let's know how it works for you. Thanks.

Re: VML crashes in DLL projects

w32 — Thu, 11 Jan 2007 22:05:45 GMT

No. My DLL uses some LAPACK funtions.

Re: VML crashes in DLL projects

Andrey_N_Intel — Thu, 11 Jan 2007 22:25:57 GMT

You could link your application also to mkl_lapack32.dll or mkl_lapack64.dll (depending on the data type you use) in addition to the VML related dlls.

Re: VML crashes in DLL projects

w32 — Fri, 12 Jan 2007 16:24:28 GMT

Thank you.