MKL problems running vslzCorrExec1D, cross correlation.

[Serjio]

I can't run vslzCorrExec1D because I get status=-2303 or -2302.

Here is my code:

    // Creating input and output vetcors
    std::vector<std::complex<double>> x, y, z;
    x.resize(5);
    y.resize(5);
    z.resize(2*std::max(x.size(),y.size()) - 1);

    // Starting MKL cross correlation 
    VSLCorrTaskPtr task;
    int status = 0;
    int iy0 = y.size() - 1;
    status = vslzCorrNewTask1D(&task, VSL_CORR_MODE_AUTO, y.size(), x.size(), z.size());
    status = vslCorrSetStart(task,&iy0);
    status = vslzCorrExec1D(task, (MKL_Complex16*)y.data(), xyz_indx, (MKL_Complex16*)x.data(), xyz_indx, (MKL_Complex16*)z.data(), xyz_indx);

Where are errors?

[VidyalathaB_Intel · Accepted solution]

Hi,

Thanks for reaching out to us.

>>Where are errors?

Could you please try changing the below line as follows?

int iy0 = y.size() - 1;

to

int iy0 = -(y.size() - 1);

Please refer to the below link for details about the start parameter while using the vslCorrSetStart routine.

https://www.intel.com/content/www/us/en/develop/documentation/onemkl-developer-reference-c/top/statistical-functions/convolution-and-correlation/convolution-and-correlation-task-editors/vslconvsetstart-vslcorrsetstart.html#vslconvsetstart-vslcorrsetstart

Please try running your code with the above changes and do let us know if it resolves your issue. If not, please provide us a complete reproducer with oneMKL version and your OS details so that we can work on it from our end.

Regards,

Vidya.

[Serjio]

dear Vidya, after your suggestion my code works without any errors

int iy0 = -(y.size() - 1); // it works

Thank you.

[VidyalathaB_Intel]

Hi,

Thanks for accepting our solution.

As your issue is resolved we are closing this thread.

If you need any additional assistance from Intel please post a new question as this thread will no longer be monitored.

Have a Nice Day!

Regards,

Vidya.