Hi Tiego,

I hear your concern about using a deprecated version of graph-tool.
Unfortunately, I found out that nothing on CentOS7 meet the pre-requisite
of graph-tool-2.16, not even the GCC compiler. And after many hours of
reading Linux textbook and browsing the internet, we simply did not manage
to build graph-tool-2.16 from source. And that's why we opted for
graph-tool-2.8 as a far from perfect solution.

I wonder if you have any recommendation or general comments for us non-CS
trained researchers installing graph-tool-2.16 on CentOS7? Much appreciated,

Yu

On Wed, Jul 6, 2016 at 3:00 AM, <[email protected]> wrote:

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> Today's Topics:
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>    1. Re: Installation error: graph_triangulation.Io (Yu Zheng)
>    2. Re: Installation error: graph_triangulation.Io
>       (Tiago de Paula Peixoto)
>    3. Simple node access runtime (killver)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 5 Jul 2016 14:01:25 -0700
> From: Yu Zheng <[email protected]>
> To: [email protected]
> Subject: Re: [graph-tool] Installation error: graph_triangulation.Io
> Message-ID:
>         <
> cakajjmxnrzxrywdfrxvgyg27o_vouagjxx1u5sbgbmm_bzg...@mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi Tiego,
>
> Thank you so much for helping us out! You were right, CGAL were not
> properly configured on the server.
>
> Instead of building everything from source on CentOS7, I built
> graph-tool-2.8 instead of the latest release, following the step-by-step
> directions here:
> https://gist.github.com/sbonner0/2138f2e3e2b249df51c765e1656f9d48. I hope
> this link will help others in similar situations.
>
> Much obliged,
> Yu
>
> On Wed, Jun 29, 2016 at 3:00 AM, <[email protected]> wrote:
>
> > Send graph-tool mailing list submissions to
> >         [email protected]
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> >         https://lists.skewed.de/mailman/listinfo/graph-tool
> > or, via email, send a message with subject or body 'help' to
> >         [email protected]
> >
> > You can reach the person managing the list at
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> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of graph-tool digest..."
> >
> >
> > Today's Topics:
> >
> >    1. Re: Installation error: graph_triangulation.Io
> >       (Tiago de Paula Peixoto)
> >    2. Re: Installation error: graph_triangulation.Io
> >       (Tiago de Paula Peixoto)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Tue, 28 Jun 2016 18:43:00 +0200
> > From: Tiago de Paula Peixoto <[email protected]>
> > To: Main discussion list for the graph-tool project
> >         <[email protected]>
> > Subject: Re: [graph-tool] Installation error: graph_triangulation.Io
> > Message-ID: <[email protected]>
> > Content-Type: text/plain; charset="utf-8"
> >
> > On 28.06.2016 18:38, Yu Zheng wrote:
> > > CGAL version: 4.9
> >
> > This might be some incompatibility with version 4.9. I will investigate.
> >
> > In the mean time, you may downgrade to version 4.8, which should solve
> > the problem.
> >
> > Best,
> > Tiago
> >
> > --
> > Tiago de Paula Peixoto <[email protected]>
> >
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> >
> > ------------------------------
> >
> > Message: 2
> > Date: Tue, 28 Jun 2016 22:45:22 +0200
> > From: Tiago de Paula Peixoto <[email protected]>
> > To: Main discussion list for the graph-tool project
> >         <[email protected]>
> > Subject: Re: [graph-tool] Installation error: graph_triangulation.Io
> > Message-ID: <[email protected]>
> > Content-Type: text/plain; charset="utf-8"
> >
> >
> > On 28.06.2016 18:38, Yu Zheng wrote:
> > > CGAL version: 4.9
> >
> > I verified, and such a CGAL version simply does not exist. The latest
> > version is 4.8.1, which works fine with graph-tool. You can verify here:
> >
> >        https://github.com/CGAL/cgal/releases
> >
> > Please check the _actual_ version of CGAL you have installed.
> >
> > Best,
> > Tiago
> >
> > --
> > Tiago de Paula Peixoto <[email protected]>
> >
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> ------------------------------
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> Message: 2
> Date: Tue, 5 Jul 2016 23:04:52 +0200
> From: Tiago de Paula Peixoto <[email protected]>
> To: Main discussion list for the graph-tool project
>         <[email protected]>
> Subject: Re: [graph-tool] Installation error: graph_triangulation.Io
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="utf-8"
>
> On 05.07.2016 23:01, Yu Zheng wrote:
> > Instead of building everything from source on CentOS7, I built
> > graph-tool-2.8 instead of the latest release, following the
> > step-by-step directions here:
> > https://gist.github.com/sbonner0/2138f2e3e2b249df51c765e1656f9d48. I
> > hope this link will help others in similar situations.
>
> This is a _very_ outdated release! Many bugs have been fixed and many
> features have been added since then.
>
> Note also that if you encounter problems with old releases, I will not
> be able to help.
>
> Best,
> Tiago
>
> --
> Tiago de Paula Peixoto <[email protected]>
>
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>
> ------------------------------
>
> Message: 3
> Date: Wed, 6 Jul 2016 00:46:00 -0700 (MST)
> From: killver <[email protected]>
> To: [email protected]
> Subject: [graph-tool] Simple node access runtime
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=UTF-8
>
> I am currently implementing an existing networkx implementation in
> graph-tool
> and observed that the new implementation runs slower than the networkx one.
> I then found out that a simple node access is already slower. So I have the
> exact same undirected graph with 1000 nodes and avg. degree of 2 in nx and
> gt, and then run:
>
> def select(g):
>     for i in range(1000):
>         n = g.vertex(0)
>
> def select_nx(g):
>     for i in range(1000):
>         n = g.nodes(0)
>
> %time select(gt)
> CPU times: user 75.6 ms, sys: 69 ?s, total: 75.6 ms
> Wall time: 72.6 ms
>
> %time select_nx(g)
> CPU times: user 3.82 ms, sys: 0 ns, total: 3.82 ms
> Wall time: 3.46 ms
>
> So I am wondering whether this is to be expected and that I can only see
> the
> drastic runtime improvements when working with calculations like shortest
> paths etc.
>
>
>
> --
> View this message in context:
> http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/Simple-node-access-runtime-tp4026645.html
> Sent from the Main discussion list for the graph-tool project mailing list
> archive at Nabble.com.
>
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