topic NAN error during PARDISO in Intel® oneAPI Math Kernel Library

NAN error during PARDISO

Usman2 — Fri, 08 Jul 2022 07:05:51 GMT

Hi, I am using Pardiso to solve a member with 75,592 DOF. However, after the "Back substitution and iterative refinement" step, one of the variables gets assigned NAN value.
For another case with decreased DOF= 50010, there is no error such as NAN.

I was wondering that what is the actual reason for this NAN error after "Back substitution and iterative refinement" step (75,4592 case). Any kind of the suggestion will be highly appreciable. Thank you!

Re: NAN error during PARDISO

Barbara_P_Intel — Fri, 08 Jul 2022 15:07:42 GMT

I'm moving this to the oneMKL Forum.

Re:NAN error during PARDISO

VidyalathaB_Intel — Fri, 13 Jan 2023 15:51:52 GMT

Hi Usman,

Thanks for reaching out to us.

Could you please provide us with the sample reproducer code and steps to reproduce the issue along with the OS environment details on which you are working so that it would help us to check the same from our end?

Please do let us know the MKL version that you are using.

Regards,

Vidya.

Re:NAN error during PARDISO

VidyalathaB_Intel — Mon, 23 Jan 2023 14:02:29 GMT

Hi Usman,

As we haven't heard back from you. could you please provide us with an update regarding the issue?

Regards,

Vidya.

Re:NAN error during PARDISO

VidyalathaB_Intel — Fri, 03 Feb 2023 16:17:59 GMT

Hi Usman,

As we haven't heard back from you, we are closing this thread. Please post a new question if you need any additional assistance from Intel as this thread will no longer be monitored.

Regards,

Vidya.