Oh yes, forgot about that one!
On Saturday, December 21, 2013 6:14:40 PM UTC, John H Palmieri wrote:
>
> According to the docstring for timeit,
>
> This method prints the timing information and does not return
> anything, except if the option "seconds=True" was passed, in which
> case the wall time in seconds is returned.
>
> So timeit('...', seconds=True) might do what you want.
>
>
> On Saturday, December 21, 2013 9:38:06 AM UTC-8, KnS wrote:
>>
>> Hi Volker,
>>
>> Thank you for the answer. We want just the time part of the output and
>> capture it in a variable if possible. The return type of the timeit()
>> function seems to be None. So, how do you work around it?
>>
>> With Sincere Regards,
>> Kannappan.
>>
>>
>> On Sat, Dec 21, 2013 at 10:04 PM, Volker Braun <[email protected]>wrote:
>>
>>> Use timeit() for precise measurements. Note that it measures wall time,
>>> not cpu time.
>>>
>>>
>>>
>>> On Saturday, December 21, 2013 4:29:19 PM UTC, KnS wrote:
>>>
>>>> Hi!
>>>>
>>>> Thank you! That was helpful! But, we have just observed the following
>>>> problems with this command. First of all, there are no subprocesses being
>>>> called, as far as I can see. We are just working with block_matrix(),
>>>> matrix() commands, which are native to sage.
>>>>
>>>> But, even with this, given one's hope that larger dimension matrices
>>>> should take longer time to build (here, we are relying on a recursion, so
>>>> this must be true!), we have the following very irregular data:
>>>>
>>>> e = 2 : 0.104
>>>> e = 3: 0.024
>>>> e = 4: 0.004
>>>> e = 5: 0.004
>>>> e = 6: 0.016
>>>> e = 7: 0.012
>>>> e = 8: 0.028
>>>> e = 9: 0.092
>>>> e = 10: 0.348
>>>> e = 11: 1.468
>>>>
>>>> In each of these cases, we were building a 2^e x 2^e matrix by a
>>>> recursion on e.
>>>>
>>>> We are interested in having an as precise data as we can about the run
>>>> time of this process. I'd appreciate any help in this regards.
>>>>
>>>> With Sincere Regards,
>>>> Kannappan.
>>>>
>>>>
>>>>
>>>>
>>>> On Sat, Dec 21, 2013 at 3:17 PM, Simon King <[email protected]>wrote:
>>>>
>>>>> Hi Kannappan,
>>>>>
>>>>>
>>>>> On 2013-12-21, Kannappan Sampath <[email protected]> wrote:
>>>>> > I'd like to know how to get some idea on the runtime of a certain
>>>>> program.
>>>>> > In particular, I'd like to know the following:
>>>>> >
>>>>> > how to run the program for various values of input, say parametrised
>>>>> by the
>>>>> > set of positive integers and extract the cpu time required for the
>>>>> > computation.
>>>>>
>>>>> Is the "cputime" function what you are looking for? As usual, you can
>>>>> see the documentation of it by
>>>>> sage: cputime?<hit return>
>>>>>
>>>>> Note that this will give you the cputime of the Sage process. In some
>>>>> applications, stand-alone programs such as Singular or Gap or Maxima or
>>>>> (if available) Magma will be invoked. cputime would not give you the
>>>>> cpu-time of these sub-processes.
>>>>>
>>>>> Best regards,
>>>>> Simon
>>>>>
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>>>>
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>>
>>
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