[Gmsh] gmshToFoam error

afshinb · June 29, 2016, 18:41

Hi

I'm trying to mesh a sphere with hexahedron grids.
I used a Gmsh code found in this forum to do so. using gmshToFoam to convert the mesh gives me this error:

Code:

--> FOAM FATAL IO ERROR: 
wrong token type - expected word, found on line 0 the label 1

file: IStringStream.sourceFile at line 0.

From function operator>>(Istream&, word&)
in file primitives/strings/word/wordIO.C at line 74.

FOAM exiting

what is wrong here?
you can find the mesh file in attachment. (I had to remove some lines some where in the middle of .msh file to keep it under 195kB for the attachment limit)

alexeym · June 29, 2016, 19:00

Hi,

Since error is caused by your original file, there is no use in the file with "some lines some where in the middle" of the file. Please post your original file.

And since your untitled.msh is something LEGALLY generated by LEGALLY acquired Gmsh, you can try to use, for example, Dropbox to host your file.

UPD. Anyway, you are generating this msh file from geo file, post your geo file. It is weights much less than msh.

afshinb · June 30, 2016, 07:49

this is the original file.
https://www.dropbox.com/s/n2xn2pyspt...itled.msh?dl=0

alexeym · June 30, 2016, 08:10

And where is the header of the file? In general Gmsh file starts with:

Code:

$MeshFormat
2.2 0 8
$EndMeshFormat
$Nodes
<number of nodes in the file>
...

Since it is absent, you get your error.

afshinb · June 30, 2016, 12:08

Quote:

Originally Posted by alexeym

And where is the header of the file? In general Gmsh file starts with:

Code:

$MeshFormat
2.2 0 8
$EndMeshFormat
$Nodes
<number of nodes in the file>
...

Since it is absent, you get your error.

yes
that solved the problem.
Thanks

Marina PA · October 10, 2019, 15:21

Hi,
How can I solve the next problem with gmsh:
gmshToFoam command not found

ncrasta · November 27, 2019, 09:50

Hi foamers,
I also get the following error with gmshToFom command. What could be the possible reasons?

Thanks,
Naveen

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

#0 Foam::error:

rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigSegv::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::UPtrList<Foam:

olyPatch>:

perator[](int) const in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/gmshToFoam"
#4 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/gmshToFoam"
#5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#6 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/gmshToFoam"
Segmentation fault (core dumped)

mh.aliyoldashi · July 23, 2024, 13:42

I also get similar error! It has been a while I am having issues with converting just a simple box geometry discretized in Gmsh. It is so much annoying to get stuck at this stage!

Update: I just solved the issue, just keep the boxes unchecked when exporting Gmsh 2 ascii. (I mean, "Save all elements" and "save parametric coordinates")

November 27, 2019, 09:50	gmshToFoam error	#7
ncrasta New Member Naveen Crasta Join Date: Nov 2019 Location: Sweden Posts: 1 Rep Power: 0	Hi foamers, I also get the following error with gmshToFom command. What could be the possible reasons? Thanks, Naveen // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time #0 Foam::error:rintStack(Foam::Ostream&) at ??:? #1 Foam::sigSegv::sigHandler(int) at ??:? #2 ? in "/lib/x86_64-linux-gnu/libc.so.6" #3 Foam::UPtrList<Foam:olyPatch>:perator[](int) const in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/gmshToFoam" #4 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/gmshToFoam" #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? in "/opt/openfoam-dev/platforms/linux64GccDPInt32Opt/bin/gmshToFoam" Segmentation fault (core dumped)

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June 29, 2016, 19:00		#2
alexeym Senior Member Alexey Matveichev Join Date: Aug 2011 Location: Nancy, France Posts: 1,938 Rep Power: 39	Hi, Since error is caused by your original file, there is no use in the file with "some lines some where in the middle" of the file. Please post your original file. And since your untitled.msh is something LEGALLY generated by LEGALLY acquired Gmsh, you can try to use, for example, Dropbox to host your file. UPD. Anyway, you are generating this msh file from geo file, post your geo file. It is weights much less than msh.

June 30, 2016, 07:49		#3
afshinb New Member Afshin Bakhshi Join Date: Mar 2014 Posts: 13 Rep Power: 12	this is the original file. https://www.dropbox.com/s/n2xn2pyspt...itled.msh?dl=0

June 30, 2016, 08:10		#4
alexeym Senior Member Alexey Matveichev Join Date: Aug 2011 Location: Nancy, France Posts: 1,938 Rep Power: 39	And where is the header of the file? In general Gmsh file starts with: Code: $MeshFormat 2.2 0 8 $EndMeshFormat $Nodes <number of nodes in the file> ... Since it is absent, you get your error. afshinb likes this.

October 10, 2019, 15:21	command not found	#6
Marina PA New Member Marina Join Date: Sep 2019 Posts: 6 Rep Power: 7	Hi, How can I solve the next problem with gmsh: gmshToFoam command not found

July 23, 2024, 13:42		#8
mh.aliyoldashi New Member M. Hosein Aliyoldashi Join Date: Dec 2023 Location: Montreal Posts: 1 Rep Power: 0	I also get similar error! It has been a while I am having issues with converting just a simple box geometry discretized in Gmsh. It is so much annoying to get stuck at this stage! Update: I just solved the issue, just keep the boxes unchecked when exporting Gmsh 2 ascii. (I mean, "Save all elements" and "save parametric coordinates")