Hi David, Please make sure you have expanded $HOME when you set the path to the library in CMake and you set ARPACK_LIBRARY after setting NEKTAR_USE_ARPACK. After configuring with CMake, you could also run 'make VERBOSE=1' and look at the full command used when linking to see if it is correctly linking with the ARPACK library in your home directory. Cheers, Chris On 19/05/16 22:11, Lander, Marcus David wrote:

I am having issues getting Nektar++ to recognize ARPACK. When I run through the channel-flow tutorial, in the Channel-Coupled.xml section, I get to the following command:

IncNavierStokesSolver Channel-Coupled.xml

Then, I receive the following error:

Value ‘Arpack’ is not valid for property ‘DRIVER’

I’m very confused how to link Arpack (which is going to be installed to my personal directory rather than on the main section of the cluster, because I do not have permission to install Arpack globally). It is installed at $HOME/ARPACK/

In ccmake .., I point the ARPACK_LIBRARY flag to $HOME/ARPACK/libarpack_LINUX.a, and then I changed the NEKTAR_USE_ARPACK flag to on.

Is there something I am missing???

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-- Chris Cantwell Imperial College London South Kensington Campus London SW7 2AZ Email: c.cantwell@imperial.ac.uk www.imperial.ac.uk/people/c.cantwell