Hi everyone, I am using dealii and I faced a big problem with parallel scaling on ubuntu 18.04. For instance, I have compiled step-17 with different core numbers on my machine: Memory: 31.2 GB, Processor: Intel® Core™ i7-8700 CPU @ 3.20GHz × 12, which shows me:
*time mpirun -np 1 ./step-17* *real 0m17.701s* *time mpirun -np 2 ./step-17* *real 0m16.507s* *time mpirun -np 4 ./step-17* *real 0m33.934s* I have tried to install dealii several times but all the time the same issue happens. Someone told me the problem can be with p4est. But I don't know what I should do to resolve this issue. Thank you for your help in advance. Mohammad -- 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/09bc9df6-a731-47dc-a5c1-0e704c507a73n%40googlegroups.com.
