On Thu, 28 Jan 2021, 13:08 Vishal Saini, <vishal.saini.nitj@gmail.com> wrote:

Hi Eli,

In continuation with Stan's reply, try adding the following in your conditions xml file:

<GLOBALSYSSOLNINFO>
<V VAR="u,v,w">



</V>

<V VAR="p">



</V>
</GLOBALSYSSOLNINFO>

This should work in parallel as appropriate linear solvers are called. Notice that the settings are a bit different for velocity (u,v,w) and pressure (p) variables, depending on the nature of the systems being solved.

---
Vishal SAINI

On Wed, Jan 27, 2021 at 3:42 PM Eli Frydman <elimanu123@gmail.com> wrote:

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Hi All,

I have an issue running the incompressible solver in parallel.

I compiled Nektar++ with the flag NEKTAR_USE_MPI set to ON but when I execute my case with the command:
mpirun -np 8 IncNavierStokesSolver session_s1223.xml

I got the following error message:
Fatal : Level 0 assertion violation
A parallel solver must be used when run in parallel.
-------------------------------------------------------
Primary job terminated normally, but 1 process returned
a non-zero exit code.. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpirun detected that one or more processes exited with non-zero status, thus causing
the job to be terminated. The first process to do so was:

Process name: [[30155,1],0]
Exit code: 1

Can you please help me to resolve this issue?

Regards,
Eli

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