topic Hello, in Intel® oneAPI Math Kernel Library

SPARSE_STATUS_NOT_SUPPORTED exit status in mkl_sparse_sp2m with symmetric sparse matrices

yera__rolando — Mon, 19 Aug 2019 03:41:33 GMT

I'm trying to multiply to symmetric sparse matrices using the mkl_sparse_sp2m function, the exit status is SPARSE_STATUS_NOT_SUPPORTED and i don't understand why, here goes the reproducer. I'm using mkl 2019 update 4 in debian.

That's mean the current

Gennady_F_Intel — Mon, 19 Aug 2019 10:04:17 GMT

That's mean the current implementation doesn't cover this set of input options.

Hello,

Kirill_V_Intel — Mon, 19 Aug 2019 21:09:23 GMT

Hello,

Gennady is right, this case is not supported currently in mkl_sparse_sp2m.
Though this case is supported by mkl_sparse_spmm as far as I see. So, is there a particular reason why you want to call sp2m here?

Best,
Kirill

Hello:

yera__rolando — Tue, 20 Aug 2019 14:48:42 GMT

Hello:

Yes this particular case is supported by mkl_sparse_spmm, the reason why I use mkl_sparse_sp2m is because in my real application I wanted to store only the symmetric part of the matrix on CSR format (this is not the case of the reproducer), now I know that this case is not supported currently so I will store all the matrix and use mkl_sparse_spmm.

Thanks.

pd: Sorry about the english

MKL 2020 has been released on

Gennady_F_Intel — Mon, 16 Dec 2019 05:45:35 GMT

MKL 2020 has been released on Dec 12 and this version still doesn't support these matrixes. We only add some note: "Currently, only SPARSE_MATRIX_TYPE_GENERAL is supported.". In the case, if you are interested to extend the supported matrix, please fill the request into Intel Online Service Center.