On Mon, Mar 28, 2011 at 8:15 AM, Tzanko Matev <[email protected]> wrote:
> Hi,
>
> I want to run a certain computation in Magma from a Sage script,
> however I would like to interrupt the computation if it takes longer
> than a set amount of time. Is it possible to do that?
> Thanks in advance,
> Tzanko Matev
Depending on the level of nastiness of the Magma code you're using,
something based on this may work for you.
def factor_or_die_trying(n, timeout=5):
try:
alarm(timeout)
return magma('Factorization(%s)'%n)
except:
return "timed out"
finally:
alarm(0)
sage: factor_or_die_trying(2^15-1, 3)
[ <7, 1>, <31, 1>, <151, 1> ]
sage: factor_or_die_trying(2^997-1, 3)
Interrupting Magma...
'timed out'
Alternatively, Magma itself also has an Alarm command:
(in Magma)
> Alarm;
Intrinsic 'Alarm'
Signatures:
(<RngIntElt> n)
Send alarm signal after n seconds to Magma (UNIX only).
--
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/sage-support
URL: http://www.sagemath.org
