topic Re: Error in PDGESVD in Intel® oneAPI Math Kernel Library

Error in PDGESVD

Basden__Alastair — Tue, 08 Jul 2008 11:31:36 GMT

Hi,
I have some code which calls PDGESVD in the intel MKL scalapack library.

However, this is sometimes giving me a segmentation fault, so I wonder whether there is a known bug in the library call? Other times, the library works fine, and the results are correct. It particularly seems to fail for larger arrays, eg 16k x 16k...

I use openmpi with MKL.

[mc:08133] *** Process received signal ***
[mc:08133] Signal: Segmentation fault (11)
[mc:08133] Signal code: (-6)
[mc:08133] Failing at address: 0x1f400001fc5
[mc:08133] [ 0] /lib/libpthread.so.0 [0x2b8d4bb66100]
[mc:08133] [ 1] /lib/libpthread.so.0(raise+0x2b) [0x2b8d4bb65fcb]
[mc:08133] [ 2] /opt/intel/mkl/10.0.1.014/lib/em64t/libguide.so [0x2b8d4ba2a661]
[mc:08133] *** End of error message ***

Any suggestions?

Thanks...

Re: Error in PDGESVD

TimP — Tue, 08 Jul 2008 12:51:58 GMT

Suggestions might be to choose the appropriate forum (MKL forum) and give more useful detail, or to come up with a test case and submit it on your premier.intel.com account.

Re: Error in PDGESVD

Basden__Alastair — Tue, 08 Jul 2008 13:04:57 GMT

Sorry, I only discovered the MKL forum after I'd posted here...

Re: Error in PDGESVD

Gergana_S_Intel — Tue, 08 Jul 2008 22:23:03 GMT

Moving this to the MKL forum.

~Gergana