#12103: Use MeatAxe as an optional back end for dense matrices over `GF(p^n)`, p
odd, n>1, `p^n<255`
-------------------------------------+-------------------------------------
Reporter: SimonKing | Owner: jason, was
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.9
Component: packages: | Resolution:
optional | Merged in:
Keywords: linear algebra, | Reviewers:
MeatAxe | Work issues: Pickling
Authors: Simon King | Commit:
Report Upstream: Reported | 710668d45f5f1e75672482db62a00b57c29cd16a
upstream. No feedback yet. | Stopgaps:
Branch: |
u/SimonKing/meataxe |
Dependencies: #19240 |
-------------------------------------+-------------------------------------
Changes (by SimonKing):
* status: needs_review => needs_work
* work_issues: => Pickling
Comment:
I thought that I did test pickling. But now I obtain crashes when
unpickling a pickle.
{{{
sage: M = MatrixSpace(GF(9,'x'),10,10)(0)
sage: M[2,3] = M[3,7] = 1
sage: f = tmp_filename()
sage: save(M, f)
sage: load(f+".sobj")
------------------------------------------------------------------------
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/ext/interrupt/interrupt.so(+0x4125)[0x7f5a7dd08125]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/ext/interrupt/interrupt.so(+0x4177)[0x7f5a7dd08177]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/ext/interrupt/interrupt.so(+0x60c9)[0x7f5a7dd0a0c9]
/lib64/libpthread.so.0(+0xf890)[0x7f5a85922890]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/matrix/matrix_gfpn_dense.so(+0xd9a0)[0x7f5a46fad9a0]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/matrix/matrix_dense.so(+0x629a)[0x7f5a6290029a]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/matrix/matrix0.so(+0x39496)[0x7f5a62d99496]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyObject_Call+0x43)[0x7f5a85b84a23]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_CallObjectWithKeywords+0x47)[0x7f5a85c35317]
/home/king/Sage/git/sage/local/lib/python2.7/lib-
dynload/cPickle.so(+0x4f4e)[0x7f5a80250f4e]
/home/king/Sage/git/sage/local/lib/python2.7/lib-
dynload/cPickle.so(+0xa669)[0x7f5a80256669]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/structure/sage_object.so(+0x21fa2)[0x7f5a7e83bfa2]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/structure/sage_object.so(+0x77df)[0x7f5a7e8217df]
/home/king/Sage/git/sage/local/lib/python2.7/site-
packages/sage/structure/sage_object.so(+0x25e10)[0x7f5a7e83fe10]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x48a9)[0x7f5a85c3a1a9]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x7f5a85c3bb02]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x4dae)[0x7f5a85c3a6ae]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x43a1)[0x7f5a85c39ca1]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x43a1)[0x7f5a85c39ca1]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x43a1)[0x7f5a85c39ca1]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x43a1)[0x7f5a85c39ca1]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x43a1)[0x7f5a85c39ca1]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x43a1)[0x7f5a85c39ca1]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x80d)[0x7f5a85c3b9cd]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x7f5a85c3bb02]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyRun_FileExFlags+0x92)[0x7f5a85c666d2]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(PyRun_SimpleFileExFlags+0xd9)[0x7f5a85c67c09]
/home/king/Sage/git/sage/local/lib/libpython2.7.so.1.0(Py_Main+0xc4d)[0x7f5a85c7d99d]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f5a84e85b05]
python[0x4007be]
------------------------------------------------------------------------
Attaching gdb to process id 4561.
...
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/12103#comment:159>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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