graph-tool December 2007

graph-tool@skewed.de

2 participants
5 discussions

Re: [graph-tool] libgraph_tool
by Tiago de Paula Peixoto 21 Dec '07

21 Dec '07

On 12/21/2007 06:57 PM, Rui Carvalho wrote: > Hi Tiago, > > Sorry for my late reply, but I only got the chance to try it now and > it works :) Great. ;-) > One more stupid question: can one use the pre-compiled binaries to > bypass the problem with gcc and have multi-threaded parallel algorithm > support on graph-tool? In principle yes, if one links to a static version of libgomp (GCC's implementation of openmp) that works. But note that there's yet a much more severe problem with openmp and GCC: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33361 This bug actually causes GCC to crash when compiling graph-tool... I guess openmp is still a quite young addition to GCC and it needs to stabilize a bit. Cheers, Tiago -- Tiago de Paula Peixoto <tiago(a)forked.de>

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Re: [graph-tool] libgraph_tool
by Tiago de Paula Peixoto 21 Dec '07

21 Dec '07

On 12/17/2007 11:34 PM, Rui Carvalho wrote: > Sorry to post again :) Post as many times as you want! :) > I'm trying to compile graph-tool on my new desktop. I've downloaded the > development source code and I think (or thought!) I have everything needed > for the install. > > Here's what I do logged in as root: > $./autogen.sh > $./configure --disable-visibility > $make > $make install > > All seems to work with no visible errors. However, here's what I get when I > type > $graph-tool --help > > Traceback (most recent call last): > File "/usr/local/bin/graph-tool", line 19, in <module> > from graph_tool import * > File "/usr/local/lib/python2.5/site-packages/graph_tool.py", line 26, in > <module> > import libgraph_tool > ImportError: No module named libgraph_tool > > > I must be making a basic mistake somewhere? I've got python 2.5.1 on an > ubuntu 7.10. It looks like python is not being able to find the module. I think it's because /usr/local/lib/python2.5/site-packages is not in python's search path. I would recommend installing graph-tool in /usr instead of /usr/local, so you don't have to modify python's search path (which would be OK also). Do the following: $ make uninstall (so you don't have old stuff lying around in your system) $ ./configure --prefix=/usr --disable-visibility $ make $ make install Tell me if it works. Cheers, Tiago -- Tiago de Paula Peixoto <tiago(a)forked.de>

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libgraph_tool
by Rui Carvalho 18 Dec '07

18 Dec '07

Sorry to post again :) I'm trying to compile graph-tool on my new desktop. I've downloaded the development source code and I think (or thought!) I have everything needed for the install. Here's what I do logged in as root: $./autogen.sh $./configure --disable-visibility $make $make install All seems to work with no visible errors. However, here's what I get when I type $graph-tool --help Traceback (most recent call last): File "/usr/local/bin/graph-tool", line 19, in <module> from graph_tool import * File "/usr/local/lib/python2.5/site-packages/graph_tool.py", line 26, in <module> import libgraph_tool ImportError: No module named libgraph_tool I must be making a basic mistake somewhere? I've got python 2.5.1 on an ubuntu 7.10. Many thanks again, Rui

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Re: [graph-tool] Parallel algorithms in graph-tool
by Tiago de Paula Peixoto 17 Dec '07

17 Dec '07

On 12/17/2007 06:31 PM, Rui Carvalho wrote: > Hi, > > I'm trying to compile graph-tool with parallel algorithms enabled, but I > must be missing something from the instructions on: > http://projects.forked.de/graph-tool/wiki/ParallelAlgorithms > > Basically, the problem is where it says: > $ cd gcc-4.2.0 > $ patch -E -p1 < ../gcc-shared-openmp.patch > > I don't have a folder gcc-4.2.0 on my Ubuntu 64 bit system, although I have > gcc-4.2.0 installed. I've tried to save the patch to this directory instead: > $cd /usr/lib/gcc/x86_64-linux-gnu/4.2 > But when I issue the command I get: > Patch: **** Only garbage was found in the patch input. > > Any help would be much appreciated :) Hi Rui. How did you download the patch? Did you get it from the link below? http://projects.forked.de/graph-tool/attachment/wiki/ParallelAlgorithms/gcc… Be careful not do download html... But notice also that you should try the patch in the _source_ directory of GCC, which is not installed by default on any system (I know of). You have to download the code from the GCC website, unpack it, apply the patch, and follow the compile instructions. Take a look at: http://gcc.gnu.org/install/ It's not a trivial task, I'm afraid... Once they fix the bug mentioned in the page, everything should be very straightforward. Hopefully they'll include this patch (or something equivalent) in GCC 4.3. Cheers, Tiago -- Tiago de Paula Peixoto <tiago(a)forked.de> 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

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Parallel algorithms in graph-tool
by Rui Carvalho 17 Dec '07

17 Dec '07

Hi, I'm trying to compile graph-tool with parallel algorithms enabled, but I must be missing something from the instructions on: http://projects.forked.de/graph-tool/wiki/ParallelAlgorithms Basically, the problem is where it says: $ cd gcc-4.2.0 $ patch -E -p1 < ../gcc-shared-openmp.patch I don't have a folder gcc-4.2.0 on my Ubuntu 64 bit system, although I have gcc-4.2.0 installed. I've tried to save the patch to this directory instead: $cd /usr/lib/gcc/x86_64-linux-gnu/4.2 But when I issue the command I get: Patch: **** Only garbage was found in the patch input. Any help would be much appreciated :) Thanks, Rui

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graph-tool December 2007