HI Guangjian, It should run in parallel but to do so you have to compile the code with the flag NEKTAR_USE_MPI set to ON. Can I first check this is the case for your setup? Cheers, Spencer. Spencer Sherwin FREng, FRAeS Head of Aerodynamics Section, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, South Kensington Campus, Imperial College London, SW7 2AZ, UK Phone: +44 (0)20 7594 5052 http://www.imperial.ac.uk/people/s.sherwin/ On 4 Sep 2020, at 10:27, Robert Holmes <lgj.robert@gmail.com<mailto:lgj.robert@gmail.com>> wrote: This email from lgj.robert@gmail.com<mailto:lgj.robert@gmail.com> 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. Dear Nektar users, I tried to run AcousticSolver in parallel, but it doesn't work as expected. So I looked through the user-guide and found a way to process each parallel partition in serial , but it seems only to work with ' FieldConvert '. I just want to run the solver faster through a multi-core computer. Could anyone give me some suggestions? Thank you! Best regards, Guangjian Liu _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users