topic libmmd.dll is the part of in Intel® oneAPI Math Kernel Library

MKL Integrate Special Functions in C#

Gianluca_G_1 — Wed, 05 Feb 2020 08:41:36 GMT

Hello I'm a C# programer,

in past versions of mkl, I found special functions in libmmd.dll.

I could use for example J0 (Bessel function), in my code with this sintax:

[DllImport("libmmd.dll", ExactSpelling = true, SetLastError = false, CallingConvention = CallingConvention.Cdecl)]
internal static extern double j0(double x);

Where are now located these functions?

thank you very much

Gianluca

libmmd.dll is the part of

Gennady_F_Intel — Wed, 05 Feb 2020 09:51:04 GMT

libmmd.dll is the part of intel compiler, please check ..Intel2020\compilers_and_libraries\windows\redist\intel64\compiler\ folder

mkl themself contains

Gennady_F_Intel — Wed, 05 Feb 2020 09:53:17 GMT

mkl themself contains DataFitting routines which provide approximation by Bessel cubic spline.

Dear Gennady,

Gianluca_G_1 — Wed, 05 Feb 2020 09:57:07 GMT

Dear Gennady,

thank you for your fast answer, but in that folder (..\IntelSWTools\compilers_and_libraries_2020\windows\redist\intel64\compiler) I can see only:

libiomp5md.dll

libiompstubs5md.dll

Obviously I searched all the directories before posting the request here.

Gian

Gian, that's strange. What I

Gennady_F_Intel — Wed, 05 Feb 2020 10:08:31 GMT

Gian, that's strange. What I see with the latest compiler 2020 installed on my win10 system:

C:\..._libraries\windows\redist\intel64\compiler>ls
1033 libicaf.dll libiomp5md.dll libmmdd.dll
1041 libifcoremd.dll libiomp5md.pdb libmmdd.pdb
cilkrts20.dll libifcoremdd.dll libiompstubs5md.dll svml_dispmd.dll
cilkrts20.pdb libifcorert.dll libirngmd.dll svml_dispmd.pdb
ifdlg100.dll libifcorertd.dll libmmd.dll ww_icl_redist_intel64_2020.0.166.msm
libchkp.dll libifportmd.dll libmmd.pdb ww_ifort_redist_intel64_2020.0.166.msm

I'm sorry, but only that

Gianluca_G_1 — Wed, 05 Feb 2020 10:18:18 GMT

I'm sorry, but only that files are present!

I installed this just today: w_mkl_2020.0.166.exe

Maybe are installed somewhere else.

I have Windows10 OS and VS 2019 Pro.

If you do not have the Intel

mecej4 — Wed, 05 Feb 2020 18:34:47 GMT

If you do not have the Intel C compiler installed, you may need to link against the MS UCRT library to pull in the j0 and other Bessel functions. For example, when I compile C code containing invocations of j0() using MSVC, the link map shows:

0002:000000b0 __imp_j0 00000001400020b0 ucrt:api-ms-win-crt-math-l1-1-0.dll

Gian, this installer (w_mkl

Gennady_F_Intel — Wed, 05 Feb 2020 18:55:37 GMT

Gian, this installer (w_mkl_2020.0.166.exe) contains only mkl libs, dlls, and etc. libmmd is the part of the intel compiler. Therefore you need to install the new compiler or use already available on your system another version of Intel compiler.

It is possible that some of

mecej4 — Wed, 05 Feb 2020 22:59:00 GMT

It is possible that some of the missing DLLs can be obtained by installing the Intel C++ redistributables package instead of the Intel C++ compiler. See https://software.intel.com/en-us/articles/intel-compilers-redistributable-libraries-by-version for more details.

OK thank you, I will check it

Gianluca_G_1 — Thu, 06 Feb 2020 07:35:40 GMT

OK thank you, I will check it.