On Sep 19, 6:25 pm, "David Harvey" <dmhar...@cims.nyu.edu> wrote:
> Consider the following script, which saves a p-adic matrix and then
> repeatedly loads it into a list:
The same thing happens on sage 4.5.2 on mac OS.
I also tried using a different ring, i.e. with
K = Integers(13^10)
M = Matrix(K, [[K.random_element() for j in range(200)] for k in
range(200)])
M.save("thing.sobj")
The same thing apparently happens, not quite as obvious but still
there:
took 1.08 seconds
took 1.08 seconds
took 1.01 seconds
took 1.11 seconds
took 1.01 seconds
took 1.14 seconds
took 1.01 seconds
took 1.01 seconds
took 1.14 seconds
took 1.01 seconds
took 1.16 seconds
took 1.01 seconds
took 1.17 seconds
took 1.02 seconds
took 1.02 seconds
took 1.19 seconds
took 1.02 seconds
took 1.20 seconds
took 1.02 seconds
took 1.22 seconds
took 1.02 seconds
took 1.02 seconds
took 1.24 seconds
took 1.01 seconds
took 1.25 seconds
took 1.01 seconds
took 1.26 seconds
took 1.02 seconds
took 1.02 seconds
took 1.28 seconds
took 1.03 seconds
took 1.29 seconds
took 1.03 seconds
took 1.31 seconds
took 1.02 seconds
took 1.02 seconds
took 1.32 seconds
took 1.02 seconds
took 1.34 seconds
took 1.02 seconds
For matrices over ZZ it doesn't seem to happen though. This suggests
it is a bug in the generic matrix load() code.
david
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