core dumped when using MKL poisson solver with multi-threads

Chang_Lei — Thu, 05 Aug 2010 02:48:07 GMT

Here I have a strange problem when using MKL poisson solver with multi-threads.
My environment is: linux + Intel compile 10. + Intel Cluster MKL 9.0 (There are two clusters using this same environment but beingdifferent in CPUversion.)
I compile and run my program throw remote console in Windows.
When I run my program with OpenMP optionandgive MKL poisson solver one thread( set ipar(23)=1), the program can run correctly on both clusters. But when set ipar(23)=4 or 8(8 is the number of cores in one CPU), the program run correctly in one cluster, but in the other cluster, it breaks downand gives follow error information:

/var/torque/mom_priv/jobs/14737.mgmt.chess.SC: line 9: 11652
env OMP_NUM_THREADS=$NPROCS /home01/mypath.../a.out

in which the "" in traditional Chinese means core dumped(from Google, I'm not very sure) and "mypth..." is path of my program.

I have searched this error in Internet, but little useful information can be obtained except someone suggested this error may be related to "limits of authority ...etc."

Could anyone here give some usefull sugguestion about this error? If it's about authorization, what exactly kind of authorization is it?

Many thanks.

core dumped when using MKL poisson solver with multi-threads

Gennady_F_Intel — Thu, 09 Sep 2010 09:16:53 GMT

I assume that the similar problem is discussed here

topic core dumped when using MKL poisson solver with multi-threads in Intel® oneAPI Math Kernel Library

core dumped when using MKL poisson solver with multi-threads

core dumped when using MKL poisson solver with multi-threads