Michael,
You wrote:
>
> dance(10) computes fine on sage.math (in about 6 hours under gdb), I
> am running dance(11) to see if it finishes [I guess you would like the
> result ;)].
Yes, sure!
So, any chance you are running the computation on a 32 bit
> box and/or run out of memory/have highly fragmented memory after a
> long uptime?
There is a long uptime, but I saw in the system console a steady line
on 80% memory usage.
I have to wait for the valgrind run to finish (which will
> take a long, long time), to say something definite, but I will look
> into it some more.
>
Below the output from bt
Thanks!
Jaap
sage: time dance(10)
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208297792 (LWP 3914)]
0x0a6c2a64 in ?? ()
(gdb) bt
#0 0x0a6c2a64 in ?? ()
#1 0x08087aa2 in PyObject_RichCompare (v=0x8f94f44, w=0x8f94f44, op=2) at
Objects/object.c:914
#2 0x080c3862 in PyEval_EvalFrameEx (f=0xa7bb864, throwflag=0) at
Python/ceval.c:3980
#3 0x0810b4ed in gen_send_ex (gen=0xa70a3ec, arg=0x16, exc=0) at
Objects/genobject.c:82
#4 0x080c00cd in PyEval_EvalFrameEx (f=0xa7bd5e4, throwflag=0) at
Python/ceval.c:2164
#5 0x0810b4ed in gen_send_ex (gen=0xa70a32c, arg=0x16, exc=0) at
Objects/genobject.c:82
#6 0x080c00cd in PyEval_EvalFrameEx (f=0xa7bd15c, throwflag=0) at
Python/ceval.c:2164
#7 0x0810b4ed in gen_send_ex (gen=0xa70a72c, arg=0x16, exc=0) at
Objects/genobject.c:82
#8 0x080c00cd in PyEval_EvalFrameEx (f=0xa7bc4fc, throwflag=0) at
Python/ceval.c:2164
#9 0x0810b4ed in gen_send_ex (gen=0xa70a70c, arg=0x16, exc=0) at
Objects/genobject.c:82
#10 0x080c00cd in PyEval_EvalFrameEx (f=0xa7bea2c, throwflag=0) at
Python/ceval.c:2164
#11 0x0810b4ed in gen_send_ex (gen=0xa70a6ec, arg=0x16, exc=0) at
Objects/genobject.c:82
#12 0x080c00cd in PyEval_EvalFrameEx (f=0xa7be134, throwflag=0) at
Python/ceval.c:2164
#13 0x0810b4ed in gen_send_ex (gen=0xa70a68c, arg=0x16, exc=0) at
Objects/genobject.c:82
#14 0x080c00cd in PyEval_EvalFrameEx (f=0xa7bf77c, throwflag=0) at
Python/ceval.c:2164
#15 0x0810b4ed in gen_send_ex (gen=0xa70a6cc, arg=0x16, exc=0) at
Objects/genobject.c:82
#16 0x080c00cd in PyEval_EvalFrameEx (f=0xa7be434, throwflag=0) at
Python/ceval.c:2164
#17 0x0810b4ed in gen_send_ex (gen=0xa70aa2c, arg=0x16, exc=0) at
Objects/genobject.c:82
#18 0x080c00cd in PyEval_EvalFrameEx (f=0xa7bb9dc, throwflag=0) at
Python/ceval.c:2164
#19 0x0810b4ed in gen_send_ex (gen=0xa70a66c, arg=0x16, exc=0) at
Objects/genobject.c:82
#20 0x0805a213 in PyIter_Next (iter=0xa70a66c) at Objects/abstract.c:2375
#21 0x0121c5bd in __pyx_f_py_7matrix2_6Matrix_permanent
(__pyx_v_self=0x9c37194, unused=0x0) at sage/matrix/matrix2.c:1633
#22 0x0805a277 in PyObject_Call (func=0x92c1a54, arg=0xb7f6d02c, kw=0x0) at
Objects/abstract.c:1860
---Type <return> to continue, or q <return> to quit---
#23 0x080be7cc in PyEval_CallObjectWithKeywords (func=0xa71282c,
arg=0xb7f6d02c, kw=0x0) at Python/ceval.c:3433
#24 0x0805a490 in PyObject_CallObject (o=0xa71282c, a=0x0) at
Objects/abstract.c:1851
#25 0x0121b491 in __pyx_f_py_7matrix2_6Matrix_permanental_minor
(__pyx_v_self=0x9c37fa4, __pyx_arg_k=0x8f94ee4)
at sage/matrix/matrix2.c:2074
#26 0x0805a277 in PyObject_Call (func=0x92c1a54, arg=0x9186b4c, kw=0x0) at
Objects/abstract.c:1860
#27 0x080be7cc in PyEval_CallObjectWithKeywords (func=0xa70ab2c, arg=0x9186b4c,
kw=0x0) at Python/ceval.c:3433
#28 0x0805a490 in PyObject_CallObject (o=0xa70ab2c, a=0x9186b4c) at
Objects/abstract.c:1851
#29 0x01212462 in __pyx_f_py_7matrix2_6Matrix_rook_vector
(__pyx_v_self=0x9c37fa4, __pyx_args=0xb7f6d02c, __pyx_kwds=0x0)
at sage/matrix/matrix2.c:2399
#30 0x080c539c in PyEval_EvalFrameEx (f=0x9c58bf4, throwflag=0) at
Python/ceval.c:3564
#31 0x080c57c5 in PyEval_EvalFrameEx (f=0x9c662b4, throwflag=0) at
Python/ceval.c:3650
#32 0x080c65d5 in PyEval_EvalCodeEx (co=0x9c37068, globals=0xa7048ac,
locals=0xa7048ac, args=0x0, argcount=0, kws=0x0,
kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2831
#33 0x080c6647 in PyEval_EvalCode (co=0x9c37068, globals=0xa7048ac,
locals=0xa7048ac) at Python/ceval.c:494
#34 0x080bdc01 in builtin_eval (self=0x0, args=0xa70886c) at
Python/bltinmodule.c:571
#35 0x080c539c in PyEval_EvalFrameEx (f=0x9ba3cbc, throwflag=0) at
Python/ceval.c:3564
#36 0x080c65d5 in PyEval_EvalCodeEx (co=0x91c8338, globals=0x91bd1c4,
locals=0x0, args=0x9c5af7c, argcount=2, kws=0x9c5af84,
kwcount=0, defs=0x91dc6d8, defcount=1, closure=0x0) at Python/ceval.c:2831
#37 0x080c4a89 in PyEval_EvalFrameEx (f=0x9c5ae2c, throwflag=0) at
Python/ceval.c:3660
#38 0x080c57c5 in PyEval_EvalFrameEx (f=0x9b8a354, throwflag=0) at
Python/ceval.c:3650
#39 0x080c65d5 in PyEval_EvalCodeEx (co=0x9ae78d8, globals=0xa7048ac,
locals=0xa7048ac, args=0x0, argcount=0, kws=0x0,
kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2831
#40 0x080c5852 in PyEval_EvalFrameEx (f=0x9c5a61c, throwflag=0) at
Python/ceval.c:494
---Type <return> to continue, or q <return> to quit---
#41 0x080c65d5 in PyEval_EvalCodeEx (co=0x91871d0, globals=0x91768ac,
locals=0x0, args=0x9ba09c8, argcount=2, kws=0x9ba09d0,
kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2831
#42 0x080c4a89 in PyEval_EvalFrameEx (f=0x9ba087c, throwflag=0) at
Python/ceval.c:3660
#43 0x080c65d5 in PyEval_EvalCodeEx (co=0x9187140, globals=0x91768ac,
locals=0x0, args=0x9b925e4, argcount=3, kws=0x9b925f0,
kwcount=0, defs=0x91eb178, defcount=2, closure=0x0) at Python/ceval.c:2831
#44 0x080c4a89 in PyEval_EvalFrameEx (f=0x9b9249c, throwflag=0) at
Python/ceval.c:3660
#45 0x080c57c5 in PyEval_EvalFrameEx (f=0xa743c0c, throwflag=0) at
Python/ceval.c:3650
#46 0x080c65d5 in PyEval_EvalCodeEx (co=0x9177e78, globals=0x91768ac,
locals=0x0, args=0xa7441c4, argcount=2, kws=0xa7441cc,
kwcount=0, defs=0x91eb4d8, defcount=1, closure=0x0) at Python/ceval.c:2831
#47 0x080c4a89 in PyEval_EvalFrameEx (f=0xa744084, throwflag=0) at
Python/ceval.c:3660
#48 0x080c65d5 in PyEval_EvalCodeEx (co=0x9177da0, globals=0x91768ac,
locals=0x0, args=0x906c7d0, argcount=2, kws=0x906c7d8,
kwcount=0, defs=0x91eb4b8, defcount=1, closure=0x0) at Python/ceval.c:2831
#49 0x080c4a89 in PyEval_EvalFrameEx (f=0x906c68c, throwflag=0) at
Python/ceval.c:3660
#50 0x080c65d5 in PyEval_EvalCodeEx (co=0x9122d58, globals=0x912968c,
locals=0x0, args=0x8f9fe4c, argcount=1, kws=0x8f9fe50,
kwcount=2, defs=0x915cb18, defcount=2, closure=0x0) at Python/ceval.c:2831
#51 0x080c4a89 in PyEval_EvalFrameEx (f=0x8f9fd14, throwflag=0) at
Python/ceval.c:3660
#52 0x080c65d5 in PyEval_EvalCodeEx (co=0xb7f32530, globals=0xb7f85acc,
locals=0xb7f85acc, args=0x0, argcount=0, kws=0x0,
kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2831
#53 0x080c6647 in PyEval_EvalCode (co=0xb7f32530, globals=0xb7f85acc,
locals=0xb7f85acc) at Python/ceval.c:494
#54 0x080e52c8 in PyRun_FileExFlags (fp=0x8f93068, filename=0xbfe5fc5a
"/usr/local/sage/local/bin/sage-gdb-pythonstartup",
start=257, globals=0xb7f85acc, locals=0xb7f85acc, closeit=0,
flags=0xbfe5d618) at Python/pythonrun.c:1271
#55 0x080e5557 in PyRun_SimpleFileExFlags (fp=0x8f93068,
filename=0xbfe5fc5a "/usr/local/sage/local/bin/sage-gdb-pythonstartup",
closeit=0, flags=0xbfe5d618)
---Type <return> to continue, or q <return> to quit---
at Python/pythonrun.c:877
#56 0x080571a6 in Py_Main (argc=0, argv=0xbfe5d6e4) at Modules/main.c:134
#57 0x08056432 in main (argc=1, argv=0x8144c20) at ./Modules/python.c:23
(gdb)
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