Failed to finish creating data files

[Tin Lok Chiu]

Dear All,

I was trying to use the "create data files for simulation" in the simulation part.
There is an error message "Failed to finish creating data files"

I found that two files were not created.
geombc.dat.1
restart.0.1

I import a .stl file to the step "Model" and start from there I created a mesh.
Inlet and outlet BC were specified as well.

Have I missed any critical step in creating the data files?

Thank you for your help.

Samuel Chiu

[Shaked Regev]

Sometimes SV fails to create data files because it has too many elements or too many points on the flow files. Try tweaking both of these, hopefully this works.

[Ky O''Rourke]

Hi,

I am having the same issue. All of the other data files are created expect geombc.dat.1, restart.0.1, and bct.dat file.

per program message when I click 'create data files for simulation:
error parsing num!
ERROR: command could not be processed.

I don't know what it means to have too many elements and the flow file is
0 -1000
1.0 -1000

How do I fix this issue?

[Shaked Regev]

The flow file is fine. What kind of mesh do you have? (# elements, boundary layer?, regional refinement? radius based?, etc)

[Amirtaha Taebi]

Hi SimVascularers!

I faced the same issue. Did you guys find any solutions?

Just to give you an idea of the problem that I'm working on: I have a simple model with 1 inlet and 3 outlets (my real model has 1 input and 23 outputs). I used surface and volume meshing as well as boundary layer meshing:
Global max edge size: 0.451 (I can't use a larger number to get smaller num of elements because mesh fails!)
Portion of edge size: 0.50
num of layers: 5
layer decreasing ratio: 0.80

Here is some information about my mesh:
# of nodes: 210077
# of elems: 1195213
# of edges: 84603
# of faces: 56402
(These numbers are significantly larger for my real model with more number of outputs)

At this step, I wanna run a steady state simulation just to test my pipeline. But it does fail to finish creating data files. I followed the same instruction explained here:http://simvascular.github.io/docsFlowSolver.html
I just get these files in my Simulations/steady folder:

mesh-complete (folder)
bct.dat (which is empty)
Inlet.flow (1 KB)
numstart.dat (1 KB)
solver.inp (2 KB)
steady.svpre (1 KB)

Looking forward to hearing from you guys!
Thanks,
Amirtaha

[David Parker]

Hi Amirtaha,

There is a bug in the current release of the **svpre** program that causes it to crash when processing a boundary layer mesh ( see https://github.com/SimVascular/SimVascular/issues/377).

The next release of SimVascular, probably next week, will have a fix for this bug.

Cheers,
Dave

[Amirtaha Taebi]

Hi David,

Thank you very much and happy new year! Can you please confirm that the new version that you mentioned in your previous message has not released yet. I can't find it.

Thanks,
Amirtaha

[David Parker]

Hi Amirtaha,

Happy New Year!

We have not released a new svSolver version, we will do that in a week or so.

If you need it sooner you could build svSolver from source. What OS are you running on?

Cheers,
Dave

[Amirtaha Taebi]

Thanks David!
I am using Windows 10.

Amirtaha

[David Parker]

It might be a bit tricky for you to build svSolver on Windows. If you would like to do that then I can ask the Windows expert here how to do it.

Cheers,
Dave