topic PARDISO produces wrong answer in Intel® oneAPI Math Kernel Library

PARDISO produces wrong answer

xian-zhong_guous_cd- — Fri, 03 Jun 2011 19:33:38 GMT

I have a non-symmetric matrix (attached). When I use in-core, I got wrong answer but occ produces correct answer. Can someone give me hints what's going on?

To test, I modified the pardiso_unsym_c.c (attached) to read my matrix in.

Exact solution should be ones. pardiso_unsym_c_sol_one_ic.res contains the solution using ic and pardiso_unsym_ooc.res using ooc.

I ran the example on linux using command:
make sointel64 interface=lp64 function=pardiso_unsym_c

PARDISO version is : 103000115

PARDISO produces wrong answer

Todd_R_Intel — Fri, 03 Jun 2011 23:18:20 GMT

Hi there. I know it doesn't explain why you got different results on IC versus OOC, but I noticed that while you mention editing pardiso_unsym_c.c you actually attached pardiso_sym_c.c and it doesn't see to be edited to read your matrix. Could you reload your example program for IC that provides the wrong results? It would be helpful in finding any errant settings.Thanks!

Todd

PARDISO produces wrong answer

xian-zhong_guous_cd- — Fri, 03 Jun 2011 23:25:52 GMT

Sorry. Here is the example I modified.

PARDISO produces wrong answer

Gennady_F_Intel — Sat, 04 Jun 2011 20:26:20 GMT

I've reproduced the problem even with win32 system with the latest update4. we will check the reason of this problem and back to you asap.

--Gennady

PARDISO produces wrong answer

Gennady_F_Intel — Mon, 06 Jun 2011 07:19:56 GMT

yes, this the real bug.This issue has been submitted to our internal development tracking database.

Here is a bug tracking number for your reference:DPD200169895. I will inform you once a new update becomes

available.--Gennady

PARDISO produces wrong answer

Gennady_F_Intel — Wed, 07 Sep 2011 05:45:59 GMT

Hello,

would You please check the problem with the latest MKL 10.3 update6 which is now availble for download.

Please let us now if any furher problems with this update.

--Gennady