Re: Timing in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg74761] Re: Timing in Mathematica*From*: Bill Rowe <readnewsciv at sbcglobal.net>*Date*: Wed, 4 Apr 2007 04:04:24 -0400 (EDT)

On 4/3/07 at 12:26 AM, szhorvat at gmail.com (Szabolcs) wrote: >After doing some experimentation, I found that on my system >AbsoluteTiming returns integer multiples of 0.015625 seconds. Timing >returns the same values, but rounded to $TimeValue of 0.001. >(Mathematica 5.2 on WinXP SP2) Per the documentation for Timing and AbsoluteTiming, the result returned is only accurate to the granularity of $TimeUnit. On my system evaluating $TimeUnit returns 1/100. Many functions will take less than 1/100 of a second to execute. The only way to get reasonably accurate estimates of the time required for these functions is to execute them a large number of times in a loop and divide the total time by the number of times the loop ran. -- To reply via email subtract one hundred and four