topic Re: dss_reorder crashes in Intel® oneAPI Math Kernel Library

dss_reorder crashes

agnonchik — Fri, 16 Oct 2009 15:26:07 GMT

Hello,

dss_reader crashes on Windows with an "Access violation reading location" exception.
I'm using MKL 10.2.1 with Visual Studio 8 on a 64 bit Windows XP machine.
The crash happens for both 32 and 64-bit versions of MKL library, right in a dss_reader() call.

I'm attaching the matrix and code. To reproduce the problem unzip the archive and compile the enclosed c-files.
Before the compilation please specify a correct path to the matrix blah//blah//blah//matr.dat in main.c.

The matrix size is 367, its upper triangular part contains 12997 nonzero entries.
Regarding the matrix which is in CSR format, I checked that
(a) the indexing is one based
(b) only the upper triangular part is stored
(c) every row has the diagonal entry
I suppose these should be enough for DSS to solve it...

Is it an MKL fault?

Please don't hesitate to ask me any further info if you need.

Thanks,
Agnonchik.

Re: dss_reorder crashes

Gennady_F_Intel — Mon, 19 Oct 2009 07:16:02 GMT

Quoting - agnonchik

Agnonchik,
I've checked the problem with the latest version mkl10.2 u2 on win32 and the test passed well. See the attached output of the problem you are trying to solve.
More details:
OS - WinXP
CPU - Intel Core2 Duo CPU T7300 @ 2.00GHz
Package ID: w_mkl_p_10.2.2.025
Static linking: mkl_solver.lib mkl_intel_c.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib
--Gennady

Re: dss_reorder crashes

Gennady_F_Intel — Mon, 19 Oct 2009 09:02:55 GMT

Quoting - agnonchik

Thanks!
I would also appriciate if you let me know whether you are able to reproduce the crash on your side.
Agnonchik.

Ok, I will check the problem on Win64 as soon as possible.
but if I am not mistaken, we had the similar issue with update 1 and the probelm has been already fixed in MKL 10.2 update 2 I used above.
--Gennady

Re: dss_reorder crashes

Gennady_F_Intel — Mon, 19 Oct 2009 09:10:35 GMT

Quoting - Gennady Fedorov (Intel)

Sorry, I forgett to add: you can download the update 2 from the https://registrationcenter.intel.com/regcenter/.
--Gennady

Re: dss_reorder crashes

agnonchik — Mon, 19 Oct 2009 09:20:23 GMT

Quoting - Gennady Fedorov (Intel)

Sorry, I forgett to add: you can download the update 2 from the https://registrationcenter.intel.com/regcenter/.
--Gennady

Thanks, Gennady.
Let me try the update 2. I'll let you know if it solves my problem.
Agnonchik.

Re: dss_reorder crashes

agnonchik — Mon, 19 Oct 2009 10:41:40 GMT

Yes! The update has solved the problem.
Thank you!
Agnonchik.