topic Hi Chris, in Intel® oneAPI Math Kernel Library

Call dfsNewTask1D from C#

Chris_S_1 — Thu, 01 Oct 2015 20:38:20 GMT

Hey,

I'm trying to get the spline functionality to work in C#. I don't seem to know what to put in place for the DFTaskPtr. I can see it's a void pointer in the mkl_df_types.h file, but I don't know how to translate that to C#.

I naively did the following:

    [SuppressUnmanagedCodeSecurity]
    internal sealed class MklNative
    {
        [DllImport("mkl_rt.dll", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true, SetLastError = false)]
        internal static extern int dfsNewTask1D(ref IntPtr task, int nx, double[] x, int xhint, int ny, double[] y, int yhint);
    }

Which doesn't work. Any help would be welcome.

there is no such example

Gennady_F_Intel — Fri, 02 Oct 2015 07:46:55 GMT

there is no such example ready to show - you may look at this https://software.intel.com/en-us/articles/using-intel-mkl-in-your-c-program KB article and see some C#examples.

Those examples don't show

Chris_S_1 — Fri, 02 Oct 2015 15:51:45 GMT

Those examples don't show what to do about the void pointer DFTaskPtr, which is the problem. I don't need a full example, just need to know the proper field to put in the place when making the extern call.

Hi Chris,

Andrey_N_Intel — Wed, 07 Oct 2015 10:38:50 GMT

Hi Chris,

I created a simple C# example which constructs linear spline using Data Fitting component of Intel MKL. Please, have a look and let me know, if it helps.

Andrey