topic Hi Grigoras, in Intel® oneAPI Math Kernel Library

Kronecker product

Grigoras_V_ — Wed, 10 Jun 2015 07:40:45 GMT

Hello.

I am new to Intel MKL and I am sorry if my question seems out of line.

Is there any function or subroutine in MKL that computes the kronecker product of two matrix (like kron in matlab).

Also is there a function in MKL that returns the identity matrix of a specified dimension (like eye(n) in matlab).

Thank you!

Hi Grigoras,

VipinKumar_E_Intel — Wed, 10 Jun 2015 08:37:39 GMT

Hi Grigoras,

The equivalent BLAS routine for the Kronecker product of two matrices would be the GEMM.

--Vipin

I am sorry, but I can't

Grigoras_V_ — Wed, 10 Jun 2015 10:18:00 GMT

I am sorry, but I can't figure out how to call GEMM to get the Kronecker product.

Could you please give me an example?

I need to compute B=kron(I,A) where I is the identity matrix and A is some 3x3 matrix.

Thank you.

Sorry Gregorias, a correction

VipinKumar_E_Intel — Thu, 11 Jun 2015 08:40:59 GMT

Sorry Gregorias, a correction to the above. GEMM may produce the same results in some partial cases only, and not in general. We do not have a specific kronecker equivalent in MKL.

--Vipin

Could something which is

Royi — Sun, 20 Jan 2019 14:47:08 GMT

Could something which is equivalent to MATLAB eye() and speye() be added with Kron (With Sparse matrices support).