2011/10/11 Giuseppe Profiti <[email protected]> > 2011/10/11 Tiago de Paula Peixoto <[email protected]> > >> [cut] >> >> I loaded your graph, and saved it in both formats and everything came >> out fine. I even tried on an ubuntu machine, and everything worked just >> as well. >> >> I have been saving and loading graphs repeatedly, on diverse machines >> (with Gentoo, Debian, MacOS), clusters nodes, etc, and I've never >> observed this problem. >> >> I'm inclined to believe this is due to something peculiar on your >> setup. The fact it is running on a virtual machine is maybe >> relevant... Have you observed any other problems? >> > > Besides the bug I submitted a while ago, this is the first serious problem > I'm having with graph_tool. It is possible that the problem may be located > in the C++ back end used for reading/writing? I mean, some corrupt C++ > library recently installed on my machine. > Also, it seems strange mostly because smaller hand made graphs seems not to > be affected by this issue. > > The only other thing that comes to my mind is a problem evaluating the > average shortest path on the graph: as you can see from the file, the number > is a bit wrong, but I tested it again on that machine (the virtualbox one) > and I'm inclined to think that there was a bug on the script that generated > the value (on another machine, a plain simple debian stable running > graph_tool 2.2.14). > > I'm sorry for the multiple emails: I just tested the same script on the same file, but with output in a directory local to the virtual machine (instead of a shared folder as before). Everything worked just fine, so the issue seems to be file-system/virtual machine related.
Thanks for the help, Giuseppe PS: I hope that I can contribute to graph_tool in the future, there are a couple of algorithms that I had to implement in python (and they are way too slow) or use from another library (in Java, then I had to develop another program) that I would gladly see in your library.
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