Problem with Gmsh major version in SlrGRACE example

Reyko

I downloaded the matlab binaries and currently try to run some examples. When running the "runme.m" from the SlrGRACE-Folder I get the following error:

Error using gmshplanet (line 54)
gmshplanet: Gmsh major version  not supported!

Error in runme (line 17)
	md.mesh=gmshplanet('radius',radius*1e-3,'resolution',resolution*1e-3); % attributes in [km]

I am using Matlab 2024a Update 2 (24.1.0.2578822)

Does anyone have a hint what could be the problem and how to solve it?

Reyko

BTW: I try to run this on OpenSuse 15.4.

mathieumorlighem

Hello @Reyko

I was hoping that someone else would get back to you... I don't know if gmsh is shipped with the binaries, but the way gmshplanet is coded is that it will simply call gmsh available on your system. Could you do in MATLAB:

>> !which gmsh

and then:

>> !gmsh -info

and tell us what the output is?

If gmsh is shipped with the binaries we could force the path to use the right one.
Cheers
Mathieu

Reyko

Thank you for your reply!
When I type
!which gmsh
in Matlab's command window I get the error
gmsh: command not found
So I guess I have to ask my admin to install it on that machine, right? This is a bit strange since the original error message (see first post) does not indicate that gmsh or gmshplanet ist not found.

Reyko

Now, I locally installed gmsh-4.13.1-Linux64 from the GMSH-Website. I can also download another binary. Which versions are supported?

Reyko

Reyko Forgot to mention that version 4.13.1 gets the error "Major version of gmsh not supported".

Reyko

I tried other versions, too. GMSH version 3.0.6 and 2.16.0 are also not working. 🙁

mathieumorlighem

I have personally never used gmshplanet but looking at the code it looks like any version 3 or 4 should be supported. Does MATLAB find it correctly? I think it is just a path problem.

Reyko

Matlab finds it correctly, and !gmsh --version gives the correct version. Code doesn't work, nevertheless.

mathieumorlighem

ok then you are close. Are you still getting the same error message? If that's the case let's try to bypass it. Open gmshplanet.m and comment out lines 53-55:

   if ~ismember([3,4],gmshmajorversion),
      error(['gmshplanet: Gmsh major version ' gmshmajorversion ' not supported!']);
   end

and we will see if a mesh is created.
Mathieu

Reyko

Thank you, I think that bypass works. The problem seems to be that getting the GMSH version does not work.
In gmshplanet.m line 18 which reads
[s,r]=system(['gmsh -info | command grep ''Version'' | sed -e ''s/Version[[:blank:]]*:[[:blank:]]//'' | cut -d ''.'' -f1']);
the command command after the first pipe is not found. I wonder why it is there anyway. If I delete it, the resulting code on this line
[s,r]=system(['gmsh -info | grep ''Version'' | sed -e ''s/Version[[:blank:]]*:[[:blank:]]//'' | cut -d ''.'' -f1']);
works fine.
So, there are other issues after this version problem but I will search the forum first.

mathieumorlighem

you are right! That makes no sense... (@justinquinn do you know what's going on there? svn blame shows that this line is from you?)
I will remove it now. Don't hesitate if anything else comes up

justinquinn

mathieumorlighem That is very strange. I don't recall how or why I would have committed that (especially to two different scripts). Good catch, @Reyko, and sorry for the headache!