#18514: Upgrade of group cohomology spkg
-------------------------------------+-------------------------------------
Reporter: SimonKing | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.8
Component: packages: | Resolution:
optional | Merged in:
Keywords: group cohomology | Reviewers:
Authors: Simon King | Work issues: Create a new-style
Report Upstream: None of the above | package with least effort
- read trac for reasoning. | Commit:
Branch: | ad6cea059d383bbb0a97c8430caca125d2ca78b7
u/SimonKing/upgrade_of_group_cohomology_spkg| Stopgaps:
Dependencies: #18494 |
-------------------------------------+-------------------------------------
Changes (by SimonKing):
* commit: => ad6cea059d383bbb0a97c8430caca125d2ca78b7
Comment:
I have extracted the second stand-alone ingredient of the group cohomology
package.
- First, install meataxe (see #12103).
- Second, get the branch from here.
- Third, get the sources for modular_resolution-1.0. It is based on the
original source code of David Green, which I refactored rather
extensively: It now uses the optional meataxe-2.4.24 package, rather than
meataxe-2.2.4 sources that used to be part of the old spkg. It propagates
errors (at least to some extent). And it is autotoolized. I am upstream,
and you find the tarball at http://users.minet.uni-jena.de/cohomology/ (To
be precise: http://users.minet.uni-
jena.de/cohomology/modular_resolution-1.0.tar.bz2).
The next step will be to relocate all the Cython and Python source files
from the old package into the !SageMath library, say,
sage.groups.modular_cohomology.
And the final step will be to fix the doctests somehow. I think there
should be a way to declare that the tests of all files in
sage.group.modular_cohomology are optional.
Question to the reviewer: I made the new package depend on database_gap.
In fact, what really depends on database_gap is only the to-be-created
wrapper in the Sage library. Since database_gap is non-GPL, I think it
should only be installed (as a dependency) when the user agrees. Is that
possible with the dependency framework of packages? Or better move the
dependency to the wrapper?
----
Last 10 new commits:
||[http://git.sagemath.org/sage.git/commit/?id=c7d75fbf5f72e435dab9af5f5fc2e7cb253b9ba3
c7d75fb]||{{{Implement and use Strassen-Winograd matrix multiplication in
MeatAxe}}}||
||[http://git.sagemath.org/sage.git/commit/?id=9e2a8c6027a1034ec21ea52dd2881965c05292d3
9e2a8c6]||{{{A very basic MeatAxe Cython wrapper}}}||
||[http://git.sagemath.org/sage.git/commit/?id=4bdd285cd6320851aa4ed7aee8fb820960005692
4bdd285]||{{{A full wrapper for MeatAxe matrices}}}||
||[http://git.sagemath.org/sage.git/commit/?id=d889e0baf9308298c084f6d8ea2c1f052aeaf63c
d889e0b]||{{{Improve echelon computation in MeatAxe, and fix some compiler
warnings}}}||
||[http://git.sagemath.org/sage.git/commit/?id=2e6425793607152a39296a95c5c50f63cf796dea
2e64257]||{{{Doctests and error handling for MeatAxe}}}||
||[http://git.sagemath.org/sage.git/commit/?id=7c389692bbc757d8d61e7f25e671527a80a7f6c5
7c38969]||{{{Fix computation of row-reduced echelon form}}}||
||[http://git.sagemath.org/sage.git/commit/?id=55a278da06ba77fdfde839aa2e45d43a6806f2fb
55a278d]||{{{Fix doctests when meataxe is installed}}}||
||[http://git.sagemath.org/sage.git/commit/?id=f73337711df114571d1be0fa61140a41628703b7
f733377]||{{{Use and propagate specific return values on error in matrix-
related MeatAxe functions.}}}||
||[http://git.sagemath.org/sage.git/commit/?id=efa1d75b650b266cd406bd893903c058ac26de21
efa1d75]||{{{Merge branch 't/12103/meataxe' into
t/18514/upgrade_of_group_cohomology_spkg}}}||
||[http://git.sagemath.org/sage.git/commit/?id=ad6cea059d383bbb0a97c8430caca125d2ca78b7
ad6cea0]||{{{Add package modular_resolution}}}||
--
Ticket URL: <http://trac.sagemath.org/ticket/18514#comment:84>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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