Installation of Nektar++ on Ubuntu 22.04
******************* 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. 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
HI Subhasisa, Nektar++ can be installed on Ubuntu and this is even possible from apt-get. . Details of how to install are under: https://www.nektar.info/getting-started/installation/ At the end of the page there are instructions on how to download the source-code from the gitlab repository. See also https://www.nektar.info/getting-started/repository/ Cheers, Spencer. On 21 Aug 2022, at 15:03, subhasisar@campus.technion.ac.il<mailto:subhasisar@campus.technion.ac.il> wrote: This email from subhasisar@campus.technion.ac.il<mailto:subhasisar@campus.technion.ac.il> 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. 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 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
******************* 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, 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... ERROR: subhasisar@aeterzis07:~/nektar-v5.2.0/basics-advection-diffusion/tutorial$ $NEK/NekMesh ADR_mesh.msh ADR_mesh.xml bash: /NekMesh: No such file or directory Can you suggest anything in this regard. Do I need to add anything in my system /.bashrc? Best, Subhasisa Rath ________________________________ From: Subhasisa Rath <subhasisar@campus.technion.ac.il> Sent: Sunday, August 21, 2022 5:03 PM To: nektar-users@imperial.ac.uk <nektar-users@imperial.ac.uk> Subject: Installation of Nektar++ on Ubuntu 22.04 Hello. I am Dr Subhasisa Rath from Technion - Israel Institute of Technology. I would like to install nektar++ on my Ubuntu 22.04 OS. I am not able to find any source-code for this OS. May I know whether I can install or not on OS? Best, Subhasisa
Hi Subhasisa, You can solve this by either defining NEK or adding nektart++ bin to the PATH in the ~/.bashrc export NEK=/home/gaoak/nektar/build/dist/bin export PATH=/home/gaoak/nektar/build/dist/bin:$PATH Cheers Ankang ________________________________ From: nektar-users-bounces@imperial.ac.uk <nektar-users-bounces@imperial.ac.uk> on behalf of subhasisar@campus.technion.ac.il <subhasisar@campus.technion.ac.il> Sent: 28 August 2022 13:31 To: nektar-users <nektar-users@imperial.ac.uk> Subject: Re: [Nektar-users] Installation of Nektar++ on Ubuntu 22.04 This email from subhasisar@campus.technion.ac.il 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, 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... 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> Sent: Sunday, August 21, 2022 5:03 PM To: nektar-users@imperial.ac.uk <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
Could you please provide the output of the command echo $NEK best, Rak On Sunday, August 28, 2022, subhasisar@campus.technion.ac.il < subhasisar@campus.technion.ac.il> wrote:
This email from subhasisar@campus.technion.ac.il originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list <https://spam.ic.ac.uk/SpamConsole/Senders.aspx> to disable email stamping for this address.
Hello,
After a successful compilation of Nektar++ v 5.2.0 from its source code in Ubuntu 22.04, all ctest cases passed. However, when I am trying to simulate the tutorial case (attached link), I am unable to execute the commands, and it shows the following error. https://doc.nektar.info/tutorials/latest/basics/ advection-diffusion/basics-advection-diffusionch2.html
ERROR: subhasisar@aeterzis07:~/nektar-v5.2.0/basics-advection-diffusion/tutorial$ $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> *Sent:* Sunday, August 21, 2022 5:03 PM *To:* nektar-users@imperial.ac.uk <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
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 $NEK
best, Rak
On Sunday, August 28, 2022, subhasisar@campus.technion.ac.il <mailto:subhasisar@campus.technion.ac.il> <subhasisar@campus.technion.ac.il <mailto:subhasisar@campus.technion.ac.il>> wrote:
This email from subhasisar@campus.technion.ac.il <mailto:subhasisar@campus.technion.ac.il> originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list <https://spam.ic.ac.uk/SpamConsole/Senders.aspx> to disable email stamping for this address.
Hello,
After a successful compilation of Nektar++ v 5.2.0 from its source code in Ubuntu 22.04, all ctest cases passed. However, when I am trying to simulate the tutorial case (attached link), I am unable to execute the commands, and it shows the following error. https://doc.nektar.info/tutorials/latest/basics/advection-diffusion/basics-a... <https://doc.nektar.info/tutorials/latest/basics/advection-diffusion/basics-advection-diffusionch2.html>
ERROR: subhasisar@aeterzis07:~/nektar-v5.2.0/basics-advection-diffusion/tutorial$ $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
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- 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
******************* 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, I am getting an error message while simulating a Nektar++ tutorial "Global Stability Analysis: Channel Flow". $NEK/IncNavierStokesSolver Channel-VCS.xml Fatal : Level 0 assertion violation Value 'Arpack' is not valid for property 'DRIVER' May I know how to solve this issue? Best, Subhasisa ________________________________ From: Subhasisa Rath <subhasisar@campus.technion.ac.il> Sent: Sunday, August 21, 2022 5:03 PM To: nektar-users@imperial.ac.uk <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
Dear Subhasisa, This message indicates that Nektar++ is not compiled with support for the ARPACK library. Some parts of this tutorial use Arnoldi algorithms from the ARPACK library, so compiling with this library is essential for these steps. To compile with ARPACK, make sure you have the ARPACK library installed on your system (e.g. package libarpack2-dev on Debian/Ubuntu) and then enable the NEKTAR_USE_ARPACK option in the CMake configuration and recompile. Kind regards, Chris On 30/08/2022 15:01, subhasisar@campus.technion.ac.il wrote:
This email from subhasisar@campus.technion.ac.il 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,
I am getting an error message while simulating a Nektar++ tutorial "Global Stability Analysis: Channel Flow". $NEK/IncNavierStokesSolver Channel-VCS.xml Fatal : Level 0 assertion violation Value 'Arpack' is not valid for property 'DRIVER'
May I know how to solve this issue?
Best, Subhasisa
------------------------------------------------------------------------ *From:* Subhasisa Rath <subhasisar@campus.technion.ac.il> *Sent:* Sunday, August 21, 2022 5:03 PM *To:* nektar-users@imperial.ac.uk <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
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- 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
participants (5)
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Chris Cantwell
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Gao, Ankang
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Sherwin, Spencer J
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Shukla, Khemraj
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subhasisar＠campus.technion.ac.il