Simulations without GUI

[Maria Nicole Antonuccio]

Hi,

I've just started to use SimVascular and I have done the examples in the guide, using the GUI. Now I would like to use command lines to run the simulations. Do I have to use Python Console or command prompt? Is there a guide in which how to do this thing is explained? Can someone help me?

Thanks!

[Weiguang Yang]

You can run presolver, flowsolver and postsolver from the command line. For the presolver, you need to have a .svpre file, say cylinder.svpre and type

% svpre cylinder.svpre
or
% your-simvascular-dir/Bin/svpre cylinder.svpre

The presolver generates geombc.dat.1 and restart.0.1 files for simulations. Then prepare a solver input file, solver.inp, and call the flow solver:

%mpiexec -np 8 svsolver

This will run a flow simulation with 8 processors. All restart files will be generated in folder 8-procs_case.
For post processing, you can type
%cd 8-procs_case
%svpost -start 1000 -stop 2000 -incr 10 -vtu cylinder -vtp cylinder
The command above will generate vtu/vtp files from timestep 1000 to timestep 2000 with an increment of 10.

[Maria Nicole Antonuccio]

Thank you very much!

I was able to launch the simulation of cylinder successfully. Now I'm trying to launch a more complex simulation with RCR BCs but it doesn't work and I don't understand why. In the attachment, you can see the errors. Someone can help me again?

Thanks!

[David Parker]

Hi Maria,

I think this error is caused by using too few processors for your simulation. Try using 8 processors.

How large is your mesh?

Cheers,
Dave

[Maria Nicole Antonuccio]

Thank you David for your tip, but I have only 6 processors. I fixed the problem by moving the simulation on the C disk.

Best regards,
Maria Nicole