Re: [Libmesh-users] small doc and efficiency update for ex 3 and 4

[edgar <edg...@cr...>]

On 2021-06-28 18:45, John Peterson wrote:
> Hi Edgar,
> 
> Including your previous results, the ex4 patch alone still has the 
> fastest
> ---8<--- snip

Great! it means that your change really works.

> But since you rebuilt libmesh between then and now, I'm not sure we 
> should
> really compare the two.

Precisely.

> ---8<--- snip
> in parallel is probably counter productive to our goals since:
> 1.) It reduces the overall active time,
> ---8<-- snip
> it is affected by the timing code
> itself.
> 2.) It will introduce more variability in the results. Currently,
> the coefficient of variation (mean divided by stddev) for these results 
> is
> on the order of 15-18%, a fair bit larger than the differences in the 
> times
> themselves.

Right.

> If you are interested in investigating this further, I would suggest 
> that
> ---8<--- snip

Although it would be interesting, it sounds like a task for someone with 
a tad more time than me :P (at the moment). At the end, I am quite sure 
that the changes which you introduced make the code more efficient. This 
task would surely bring more formality to it.

Thanks!