Wolfgang, Thank you for your reply.
I too found these articles that you linked, but unfortunately I could not resolve my error based on what I found. At least there is some solace that someone as experienced as yourself is not sure what to do. :-) Best regards, -Sean On Thursday, May 9, 2024 at 12:39:48 AM UTC-4 Wolfgang Bangerth wrote: > On 5/8/24 10:19, Sean Carney wrote: > > > > I am able to compile the tutorials (e.g. Step-29) that use the > > SparseDirectUMFPACK class, however, if I try to run the example, I get > the > > following error: > > > > ./step-29: symbol lookup error: > /lib/x86_64-linux-gnu/libmkl_intel_thread.so: > > undefined symbol: __kmpc_global_thread_num > > > > Does this mean that I didn't properly configure deal.II with > multithreading > > capabilities? > > > > I am grateful for any suggestions that can help me resolve this issue. > > I tried to find something on the internet about this, and found > > > https://stackoverflow.com/questions/13715979/parallel-program-giving-error-undefined-reference-to-kmpc-ok-to-fork > This suggests that the MKL was compiled with OpenMP; MKL provides BLAS and > LAPACK functions; and UMFPACK uses those. > > I must admit that I don't know how to solve this. It would be a > mis-configured > compilation of the MKL to not explicitly reference all libraries it needs > to > link with, and there is little that deal.II can do about that after the > fact. > You *could* try to use LD_PRELOAD as suggested here > https://github.com/kaldi-asr/kaldi/issues/4347 > but that's an expensive solution :-( > > Best > W. > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: [email protected] > www: http://www.math.colostate.edu/~bangerth/ > > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/481e5eed-ccab-427a-8060-a96a32123f61n%40googlegroups.com.
