topic Hi, in Intel® oneAPI Math Kernel Library

parallel / multi-threaded ILUT and FGMRES

Marla_S_ — Sun, 07 Apr 2013 14:49:34 GMT

Hi,

I'd like to learn if there is multi-threaded and/or parallel (mpi) support for ILUT/FGMRES in intel MKL and/or intel MKL cluster edition. I have read in a few posts that this solver might not be available in parallel for some previous versions, I want to know whether it is available in the latest versions of MKL, and what versions if any support this solver in parallel.

Thank you

Hi,

Alexander_K_Intel2 — Mon, 08 Apr 2013 15:26:58 GMT

Hi,

Currently fgmres/ilut supported in MKL only in sequential mode.

With best regards,

Alexander Kalinkin

Hello,

Zholobenko__Wladimir — Fri, 16 Nov 2018 13:09:53 GMT

Hello,

is it still true that FGMRES is only supported in sequntial mode? Which to my understanding means that all risks of its application with MPI is up to the user? Hence, there is no iterative solver library in MKL which is intended for usage with MPI?

Thanks in advance

yes, this is still relevant

Gennady_F_Intel — Sat, 17 Nov 2018 03:22:04 GMT

yes, this is still relevant the latest version( MKL 2019) too. FGRMRES supports the sequential mode only and both of mkl iterative solvers are intended for smp mode only.

In the case you really need

Gennady_F_Intel — Sat, 17 Nov 2018 03:24:36 GMT

In the case you really need MPI versions of these solvers, then please submit the Feature Request to the Intel online service center.

Thanks for the information

Zholobenko__Wladimir — Tue, 20 Nov 2018 11:12:31 GMT

Thanks for the information and the advice! I will consider submitting the request, but also look for other solutions meanwhile.