16.2 Usage

Q. How do I run a solver in parallel?

In a desktop environment, simply prefix the solver executable with the mpirun helper. For example, to run the Incompressible Navier-Stokes solver on a 4-core desktop computer, you would run

In a cluster environment, using PBS for example, the mpiexec command should be used.

Q. How can I generate a mesh for use with Nektar++?

Nektar++ supports a number of mesh input formats. These are converted to the Nektar++ native XML format (see Section 3) using the NekMesh utility (see Section 4. Supported formats include:

• Gmsh (.msh)
• Polygon (.ply)
• Nektar (.rea)
• Semtex (.sem)