Hi,
Recently updated my Cygwin branch of Sage to merge in the latest
develop branch. For the most part it's gone pretty well. There's a
test suite though for the sage.graphs.tutte_polynomial module (I have
no idea what that is) which took a very long time after the update.
Prior to the update (I'll have to look up what commit that was), it ran in:
sage -t --long --warn-long 52.3 src/sage/graphs/tutte_polynomial.py
[105 tests, 4.85 s]
After the update I got:
sage -t --long --warn-long 86.2 src/sage/graphs/tutte_polynomial.py
**********************************************************************
File "src/sage/graphs/tutte_polynomial.py", line 495, in
sage.graphs.tutte_polynomial._cached
Warning, slow doctest:
T = tutte_polynomial(G) #indirect doctest
Test ran for 294.01 s
**********************************************************************
File "src/sage/graphs/tutte_polynomial.py", line 496, in
sage.graphs.tutte_polynomial._cached
Warning, slow doctest:
tutte_polynomial(G)(1,1) #indirect doctest
Test ran for 293.16 s
**********************************************************************
File "src/sage/graphs/tutte_polynomial.py", line 534, in
sage.graphs.tutte_polynomial.tutte_polynomial
Warning, slow doctest:
all(T.tutte_polynomial() == x**9 for T in graphs.trees(10))
Test ran for 644.51 s
**********************************************************************
File "src/sage/graphs/tutte_polynomial.py", line 540, in
sage.graphs.tutte_polynomial.tutte_polynomial
Warning, slow doctest:
P.tutte_polynomial()
Test ran for 291.85 s
**********************************************************************
File "src/sage/graphs/tutte_polynomial.py", line 550, in
sage.graphs.tutte_polynomial.tutte_polynomial
Warning, slow doctest:
G.tutte_polynomial()(1,1) == G.spanning_trees_count()
Test ran for 3760.29 s
**********************************************************************
File "src/sage/graphs/tutte_polynomial.py", line 558, in
sage.graphs.tutte_polynomial.tutte_polynomial
Warning, slow doctest:
T = G.tutte_polynomial()
Test ran for 97.67 s
[105 tests, 5468.82 s]
Same number of tests, but took an hour and a half to run as opposed to
under 5 seconds. (This is running on a single CPU).
Any ideas?
Thanks,
Erik
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