Dear Subhasisa, Before you start the tutorial, you should set the environment variable $NEK yourself to the location of your Nektar++ install where all the executables are located, e.g. in bash: export NEK=/home/your_username/nektar++/build/dist/bin if you have compiled Nektar++ yourself in your home directory (replace the path appropriately). If you have installed the binary packages, then you could set export NEK=/usr/bin which should work (in fact you do not need the "$NEK/" prefix to the commands in this case as they are already in your shell's PATH. We use this environmental variable throughout to try and retain consistency of the tutorial text when people's system configuration and Nektar++ installation location might differ. Cheers, Chris On 28/08/2022 15:39, Shukla, Khemraj wrote:
Could you please provide the output of the command echo $NEK
best, Rak
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Hello,
After a successful compilation of Nektar++ v 5.2.0 from its source code in Ubuntu 22.04, all ctest cases passed. However, when I am trying to simulate the tutorial case (attached link), I am unable to execute the commands, and it shows the following error. https://doc.nektar.info/tutorials/latest/basics/advection-diffusion/basics-a... <https://doc.nektar.info/tutorials/latest/basics/advection-diffusion/basics-advection-diffusionch2.html>
ERROR: subhasisar@aeterzis07:~/nektar-v5.2.0/basics-advection-diffusion/tutorial$ $NEK/NekMesh ADR_mesh.msh ADR_mesh.xml bash: /NekMesh: No such file or directory
Can you suggest anything in this regard. Do I need to add anything in my system /.bashrc?
Best, Subhasisa Rath ------------------------------------------------------------------------ *From:* Subhasisa Rath <subhasisar@campus.technion.ac.il <mailto:subhasisar@campus.technion.ac.il>> *Sent:* Sunday, August 21, 2022 5:03 PM *To:* nektar-users@imperial.ac.uk <mailto:nektar-users@imperial.ac.uk> <nektar-users@imperial.ac.uk <mailto:nektar-users@imperial.ac.uk>> *Subject:* Installation of Nektar++ on Ubuntu 22.04 Hello. I am Dr Subhasisa Rath from Technion - Israel Institute of Technology. I would like to install nektar++ on my Ubuntu 22.04 OS. I am not able to find any source-code for this OS. May I know whether I can install or not on OS?
Best, Subhasisa
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-- Chris Cantwell Senior Lecturer in Aeronautics Department of Aeronautics Imperial College London South Kensington Campus London SW7 2AZ Tel: +44 (0)20 759 45050 Email: c.cantwell@imperial.ac.uk www.imperial.ac.uk/people/c.cantwell