Hi Daniel, You could be running out of memory as you are loading files in serial and therefore reading in (u,v,wp)-average along with 9x double value components, the mesh and the instantaneous solution. You can try to convert the inst. and t-avg to HDF5 (section 5.3 in manual or ctrl-f "HDF5"), but it will also depend on the hardware you have available and whether you have installed Nektar++ with HDF5. Regards, Guglielmo ________________________________ From: nektar-users-bounces@imperial.ac.uk <nektar-users-bounces@imperial.ac.uk> on behalf of Daniel Garcia <ribeiro.danielg@gmail.com> Sent: 24 October 2024 13:10 To: nektar-users <nektar-users@imperial.ac.uk> Subject: [Nektar-users] Error when restarting - ReynoldsStresses This email from ribeiro.danielg@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. Hello everyone, how are you? I'm receiving an error (not specified) when restarting a 3D simulation which has the ReynoldsStresses filter activated. I don't get the error when the simulation is 2D nor when I use the AverageFields filter. So it just happens when I use the ReynoldsStresses filter in the Quasi-3D simulation. I'm also solving a scalar equation. Would it be a bug in this specific setup condition? I tried versions 5.4 and 5.5. Or does anyone know a workaround? I'm doing separated averages to combine later with the respective FieldConvert module for now. Thank you very much, Daniel.