Re: [sage-devel] Sparse numerical matrices

2009-11-27 Thread William Stein
On Fri, Nov 27, 2009 at 5:59 PM, Dag Sverre Seljebotn wrote: > William Stein wrote: >> On Fri, Nov 27, 2009 at 7:37 AM, Dag Sverre Seljebotn >> wrote: >>> I need a convenient matrix class for some numerical work. SciPy doesn't >>> accept GPL code and besides I heavily dislike the NumPy matrix cla

Re: [sage-devel] Sparse numerical matrices

2009-11-27 Thread Dag Sverre Seljebotn
William Stein wrote: > On Fri, Nov 27, 2009 at 7:37 AM, Dag Sverre Seljebotn > wrote: >> I need a convenient matrix class for some numerical work. SciPy doesn't >> accept GPL code and besides I heavily dislike the NumPy matrix class. So >> why not put my efforts into improving Sage (or at least wr

[sage-devel] Re: Graphical Physics Program Suggestions

2009-11-27 Thread kstueve
I need help integrating a Python/Cython program (calculation/ simulation) with Java (GUI front-end with Swing, mouselistener, animating graphics). If anyone has experience integrating different languages with Sage and the notebook, experience combining Python (and Cython/C) with other languages, o

Re: [sage-devel] Error on building Sage on a Gentoo box

2009-11-27 Thread François Bissey
On Sat, 28 Nov 2009 11:56:02 William Stein wrote: > On Fri, Nov 27, 2009 at 1:57 PM, François Bissey > > wrote: > > On Sat, 28 Nov 2009 07:14:56 roelof wrote: > >> Hello, > >> > >> Im trying to make Sage working on a gentoo box but it fails here : > >> > >> Thread model: posix > >> gcc version 4.

Re: [sage-devel] Re: Printing...

2009-11-27 Thread William Stein
On Fri, Nov 27, 2009 at 10:18 AM, Florent Hivert wrote: >      Hi Jason ! > >> The patch is already done and waiting on trac for several months: >> >> http://trac.sagemath.org/sage_trac/ticket/1918 > > Excellent ! > >> You just have to update a bunch of doctests and review the patch! > > I was rea

Re: [sage-devel] Sparse numerical matrices

2009-11-27 Thread William Stein
On Fri, Nov 27, 2009 at 7:37 AM, Dag Sverre Seljebotn wrote: > I need a convenient matrix class for some numerical work. SciPy doesn't > accept GPL code and besides I heavily dislike the NumPy matrix class. So > why not put my efforts into improving Sage (or at least write something > Sage-compati

Re: [sage-devel] Re: Build logs

2009-11-27 Thread William Stein
On Fri, Nov 27, 2009 at 11:09 AM, Ben Goodrich wrote: > On Nov 27, 12:50 pm, William Stein wrote: >> I wonder what Gentoo, Debian, etc., do?  Do they do anything, or just >> leave the output >> of logging to the user. >> >> William > > Do you mean this? > > https://buildd.debian.org/pkg.cgi?pkg=s

Re: [sage-devel] Error on building Sage on a Gentoo box

2009-11-27 Thread William Stein
On Fri, Nov 27, 2009 at 1:57 PM, François Bissey wrote: > On Sat, 28 Nov 2009 07:14:56 roelof wrote: >> Hello, >> >> Im trying to make Sage working on a gentoo box but it fails here : >> >> Thread model: posix >> gcc version 4.3.4 (Gentoo 4.3.4 p1.0, pie-10.1.5) >>

Re: [sage-devel] Re: Denial of Service attack on Sage servers

2009-11-27 Thread Robert Bradshaw
On Nov 27, 2009, at 5:10 AM, Dr. David Kirkby wrote: > kstueve wrote: >> >> On Nov 25, 12:34 pm, "Dr. David Kirkby" >> wrote: >>> It would appear to me that it would be very easy for a "script >>> kiddie" to write >>> a a program which created huge numbers of accounts on a Sage >>> server, pe

Re: [sage-devel] Re: [Polybori-discuss] Portability issue - GNU specific options sent to non-GNU compiler

2009-11-27 Thread Dr. David Kirkby
Dr. David Kirkby wrote: > The Sun equivalent of -fPIC, is usually -KPIC, though I think that is > different > on 64-bit platforms. It is also different on other platforms too. Of course, any modern Sun is 64-bit. What I mean is that I believe the correct flag to produce position independent c

Re: [sage-devel] Build logs

2009-11-27 Thread François Bissey
On Sat, 28 Nov 2009 06:50:37 William Stein wrote: > On Fri, Nov 27, 2009 at 6:56 AM, Pat LeSmithe wrote: > > Part of the outline at > > > > http://wiki.sagemath.org/SageTasks > > > > is about build logs: > > > >* Separate file for each spkg for parallel builds. > >* Group by install, upgra

Re: [sage-devel] Error on building Sage on a Gentoo box

2009-11-27 Thread François Bissey
On Sat, 28 Nov 2009 07:14:56 roelof wrote: > Hello, > > Im trying to make Sage working on a gentoo box but it fails here : > > Thread model: posix > gcc version 4.3.4 (Gentoo 4.3.4 p1.0, pie-10.1.5) > > checking build system type... k8-unknown-

[sage-devel] Re: [Polybori-discuss] Portability issue - GNU specific options sent to non-GNU compiler

2009-11-27 Thread Dr. David Kirkby
Alexander Dreyer wrote: > Dear Dave, Hi Alexander > thank you, for pointing out that this issue is not resolved in Sage. I > thought, these things were resolved, because we were discussing similar > issues within another thread. The previous issue observed in Sage with PolyBoRi picking up the wr

Re: [sage-devel] Re: sage program icons

2009-11-27 Thread Ivan Andrus
On Nov 27, 2009, at 12:22 AM, Harald Schilly wrote: > On Nov 26, 10:13 pm, Christopher Olah > wrote: >> That's awesome. > > Thanks ;) > > The 16x16 one looks ugly, but that's no wonder. But the svg one and > since I know they are maybe a bit larger, I also thought about some > additional tweaks

[sage-devel] Re: Build logs

2009-11-27 Thread Ben Goodrich
On Nov 27, 12:50 pm, William Stein wrote: > I wonder what Gentoo, Debian, etc., do?  Do they do anything, or just > leave the output > of logging to the user. > > William Do you mean this? https://buildd.debian.org/pkg.cgi?pkg=sagemath -- To post to this group, send an email to sage-devel@goog

[sage-devel] Re: Sparse numerical matrices

2009-11-27 Thread dahl.joac...@gmail.com
The next version of CVXOPT will include our own library for computations with chordal matrices - including multifrontal Cholesky factorizations. http://abel.ee.ucla.edu/chompack/ We did not develop the library primarily for the Cholesky routines, but they seem to be competitive with CHOLMOD, and

Re: [sage-devel] Re: Printing...

2009-11-27 Thread Florent Hivert
Hi Jason ! > The patch is already done and waiting on trac for several months: > > http://trac.sagemath.org/sage_trac/ticket/1918 Excellent ! > You just have to update a bunch of doctests and review the patch! I was ready to do that, unfortunately, that not the problem here. There seems

[sage-devel] Error on building Sage on a Gentoo box

2009-11-27 Thread roelof
Hello, Im trying to make Sage working on a gentoo box but it fails here : Thread model: posix gcc version 4.3.4 (Gentoo 4.3.4 p1.0, pie-10.1.5) checking build system type... k8-unknown-linux-gnu checking host system type... k8-unknown-linux-gnu

[sage-devel] Re:sage and nfs

2009-11-27 Thread Pablo Angulo
My colleague discovered that the plain hard disk read speed was very low due to a configuration problem. This has sped up the transmission a lot! We'll test the system the next day a lot of students log in at once and report back. So you were right, Jan, the server was the place to look. You've cl

Re: [sage-devel] Build logs

2009-11-27 Thread William Stein
On Fri, Nov 27, 2009 at 6:56 AM, Pat LeSmithe wrote: > Part of the outline at > > http://wiki.sagemath.org/SageTasks > > is about build logs: > >    * Separate file for each spkg for parallel builds. >    * Group by install, upgrade, or spkg install event. >    * Remotely aggregate and display ref

[sage-devel] Re: cddlib problems - has anyone contact information?

2009-11-27 Thread mhampton
We have never had success in contacting Komei Fukuda, who should be the official contact for cddlib. I don't understand why he has never responded. He did just update his ETH webpage, so perhaps its worth trying again (I think he may have had a visiting position somewhere for a while, but I'm not

Re: [sage-devel] Re: sage and nfs

2009-11-27 Thread Jan Groenewald
Hi On Fri, Nov 27, 2009 at 09:01:51AM -0800, Harald Schilly wrote: > On Nov 27, 8:51 am, Jan Groenewald wrote: > > Recently it had problems when 50 users were already on and then > > a group of 54 students walked into a lab and logged on simutlaneously > > to start sage. > > Well, it still might

[sage-devel] Re: sage and nfs

2009-11-27 Thread Harald Schilly
On Nov 27, 8:51 am, Jan Groenewald wrote: > Recently it had problems when 50 users were already on and then > a group of 54 students walked into a lab and logged on simutlaneously > to start sage. Well, it still might be interesting to check what sage does in the .sage dir. Does it read all files

Re: [sage-devel] Bug in new sage-spkg?

2009-11-27 Thread Minh Nguyen
Hi Simon, On Fri, Nov 27, 2009 at 11:22 PM, Simon King wrote: > Is it with intention (i.e., are people supposed to manually download > the spkg first, and then do sage -i), or is it a bug? First, let's discuss what is (to me at least) the expected behaviour when one issues the following comma

[sage-devel] Re: Implementation of Graphs, c_graphs, and NetworkX

2009-11-27 Thread YannLC
You can obtain "some" c_grah in Sage with cG = G.copy(implementation="c_graph") I don't know how far the development is though. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For mo

Re: [sage-devel] Sparse numerical matrices

2009-11-27 Thread Dag Sverre Seljebotn
Dag Sverre Seljebotn wrote: > I need a convenient matrix class for some numerical work. SciPy doesn't > accept GPL code and besides I heavily dislike the NumPy matrix class. So > why not put my efforts into improving Sage (or at least write something > Sage-compatible for myself)... > > In part

[sage-devel] Sparse numerical matrices

2009-11-27 Thread Dag Sverre Seljebotn
I need a convenient matrix class for some numerical work. SciPy doesn't accept GPL code and besides I heavily dislike the NumPy matrix class. So why not put my efforts into improving Sage (or at least write something Sage-compatible for myself)... In particular I need to Cholesky-factor Hermiti

[sage-devel] Re: Implementation of Graphs, c_graphs, and NetworkX

2009-11-27 Thread YannLC
No answer to the main question, but just completing the timings: sage: G=graphs.RandomGNP(300,.1) sage: time d=[G.distance(i,j) for (i,j) in Subsets(G.vertices(),2)] CPU times: user 3.67 s, sys: 0.00 s, total: 3.67 s Wall time: 3.72 s sage: time d=networkx.all_pairs_shortest_path(G) CPU times: use

[sage-devel] Implementation of Graphs, c_graphs, and NetworkX

2009-11-27 Thread Nathann Cohen
Hello everybody !!! Reviewing patch #7533, Rob Beezer noticed that the Graph function to compute the distances between all the pairs of vertices in a Graph ( shortest_path_all_pairs(), written in Python ) is much slower than computing independently the distances between all the pairs of vertices i

[sage-devel] Build logs

2009-11-27 Thread Pat LeSmithe
Part of the outline at http://wiki.sagemath.org/SageTasks is about build logs: * Separate file for each spkg for parallel builds. * Group by install, upgrade, or spkg install event. * Remotely aggregate and display refreshed statistics. Thoughts? Suggestions? Implementations? Are

[sage-devel] Build logs

2009-11-27 Thread Pat LeSmithe
Part of the outline at http://wiki.sagemath.org/SageTasks is about build logs: * Separate file for each spkg for parallel builds. * Group by install, upgrade, or spkg install event. * Remotely aggregate and display refreshed statistics. Thoughts? Suggestions? Implementations? Are

[sage-devel] Security issues in gnutls-2.2.1

2009-11-27 Thread Dr. David Kirkby
There are a couple of issues with gnutls-2.2.1 which I reported to the gnutls-de...@gnu.org mailing list. They advise me that we should not be using 2.2.1, as there are security issues with this release. I've made fixing the security issues a ticket http://trac.sagemath.org/sage_trac/ticket/7542

[sage-devel] cddlib problems - has anyone contact information?

2009-11-27 Thread Dr. David Kirkby
I've found a couple of relatively minor issues in cddlib-094f, which need reporting upstream. * cddlib 094f fails to build with Sun Studio - fabs() unresolved. Probably needs -lm http://trac.sagemath.org/sage_trac/ticket/7067 * On HP-UX I had problems building mpfr, but just kept trying o

Re: [sage-devel] Re: Denial of Service attack on Sage servers

2009-11-27 Thread Dr. David Kirkby
kstueve wrote: > > On Nov 25, 12:34 pm, "Dr. David Kirkby" > wrote: >> It would appear to me that it would be very easy for a "script kiddie" to >> write >> a a program which created huge numbers of accounts on a Sage server, perform >> some CPU intensive computation on them, and bring the syste

Re: [sage-devel] Re: Test sites for NSF education grant

2009-11-27 Thread Nicolas M. Thiery
On Thu, Nov 26, 2009 at 10:42:01PM -0800, Rob Beezer wrote: > We've been told non-US institutions are possible. Obviously, for > logistical reasons, and given the nature of our possible funding, > we'll probably favor places in the US that are close to one or more of > the main folks on the grant.

Re: [sage-devel] Re: InfinitePolynomialRing is -- very -- slow

2009-11-27 Thread Nicolas M. Thiery
On Thu, Nov 26, 2009 at 01:42:35PM -0800, Nick Alexander wrote: > Two things, mostly. The huge amount of code that wasn't being > merged -- that appears to now be merged :) For a good part, that was just an instance of a general issue with Sage's slow review process (and I don't have good suggest

[sage-devel] Bug in new sage-spkg?

2009-11-27 Thread Simon King
Hi! When David Joyner tried to install my group cohomology spkg in sage-4.3.alpha0, the package was not downloaded. He reported: jeeves:sage-4.3.alpha0 wdj$ ./sage -i http://sage.math.washington.edu/home/SimonKing/Cohomology/p_group_cohomology-1.2.spkg Installing http://sage.math.washington.edu/

[sage-devel] Re: Denial of Service attack on Sage servers

2009-11-27 Thread kstueve
On Nov 25, 12:34 pm, "Dr. David Kirkby" wrote: > It would appear to me that it would be very easy for a "script kiddie" to > write > a a program which created huge numbers of accounts on a Sage server, perform > some CPU intensive computation on them, and bring the system to a near > standstill