[Numpy-discussion] interrupting large matrix operations
Fri Sep 10 07:29:12 CDT 2010
On Fri, Sep 10, 2010 at 9:22 PM, David Cournapeau <firstname.lastname@example.org> wrote:
> On Fri, Sep 10, 2010 at 9:05 PM, Tom K. <email@example.com> wrote:
>> OK, I know it's my problem if I try to form a 15000x15000 array and take the
>> cosine of each element, but the result is that my python session completely
>> hangs - that is, the operation is not interruptible.
>> <hangs indefinitely>
>> I'd like to hit "control-c" and get out of this hung state.
>> What would it take to support this?
One more question: are you hitting the swap significantly when doing
the uninterruptible operation ? It may be blocked during allocation if
the disk is used, in which case I am not sure there is anything we can
do (if it is blocked inside malloc for example) - but my knowledge of
signals is rather limited.
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