[Nektar-users] Openmp slow in Nektar

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hello everyone I run the Compressible solver in parallel, when I used 120 cores, it was slower than 68 cores. I used the commond that "mpirun -n 64 CmpressibleSolver Cyl.xml ". Could someone give me some advice? The computer has 128 cores, 2 NUMA. With best regards