Hello,
On Apr 19, 2:39 pm, Martin Albrecht <[EMAIL PROTECTED]>
wrote:
> > As far as I can tell cputime() is a sage function. Grepping for it
> > found lots of use of the function, but if someone could point me to
> > the right place where it is implemented I can investigate further.
>
> The implementation is
>
thanks,
> def cputime(t=0):
> try:
> t = float(t)
> except TypeError:
> t = 0.0
> return time.clock() - t
>
> and is located in sage.misc.misc. You can find it by typing cputime? or
> cputime?? on the SAGE prompt.
>
A little poking around leads me to IPython/genutils.ps which
reimplemets clock(), specifially stating that it avoids the wraparound
problems in time.clock():
def clock():
"""clock() -> floating point number
Return the *TOTAL USER+SYSTEM* CPU time in seconds since the
start of
the process. This is done via a call to resource.getrusage,
so it
avoids the wraparound problems in time.clock()."""
u,s = resource.getrusage(resource.RUSAGE_SELF)[:2]
return u+s
> Martin
>
Because I know to little about the internal of sage I hope that
somebody else can take it from here. I should be working on something
else at the moment anyway ;)
Cheers,
Michael
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