[Gmsh] Large postprocessing file

Jozsef Bakosi jbakosi at gmu.edu
Thu Apr 3 23:26:17 CEST 2008


I think I have found the problem. It seems to be a 32-bit/64-bit issue.
I recompiled gmsh from source on a 64bit environment and that one
started loading the large file. (The files were also saved by that same

All the machines that have failed to load the big file I believe were
Core 2 duo and Xeon 64bit systems. The one that didn't is Pentium 4
therefore 32 bit.

The gmsh binary versions I was running everywhere were 32 bit executables.
Now I compiled a 64 bit executable and it seems fine. May that mean that
I found a bug?


On Thu, Apr 03, 2008 at 10:30:53AM -0400, Jozsef Bakosi wrote:
> Hello,
> I'm trying to load the following files:
> http://camp.gmu.edu/jbakosi/pub/20.pos
> http://camp.gmu.edu/jbakosi/pub/1_smallwindow.pos
> Both load fine on a machine with 1GB RAM but I'm having a problem
> loading the second one on other computers with more memory. Gmsh doesn't
> even start loading it. I doubt it's a problem of memory, because the
> large file loads fine on a machine with small RAM (starts swapping),
> while the large one doesn't even start on a machine with 16G. No error
> message, no crash, just nothing.
> I also looked at ulimit, with no luck. Also the systems I'm trying with
> are: Debian (loads fine), Suse, Fedora (fails).
> Is there any other limitation I'm missing?
> I'm trying to load an even bigger file if this works, like 15G.
> Please let me know if you need more information and cc me because I'm
> not currently subscribed.
> Thanks,
> Jozsef

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