Re: GNAT's Protected Objects

[Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>]

On 11/09/2010 03:18 AM, Egil H�vik wrote:
> On Nov 8, 11:32 pm, Jeffrey Carter
> <spam.jrcarter....@spam.not.acm.org>  wrote:
>>
>>         Result : Matrix;
>
> Result is shared between multiple tasks,
> reduce references to a minimum by using a
> temporary value:
>
> This should give you a nice speedup :)

Interesting. That does help, presumably by reducing cache misses. I'm not sure 
how relevant that is for my purposes, which were to determine the optimal number 
of tasks, not obtaining the minimum running time.

The version with the PO now shows a speedup, but is still slower than the 
version without. No surprise there.

-- 
Jeff Carter
"I was in love with a beautiful blonde once, dear.
She drove me to drink. That's the one thing I'm
indebted to her for."
Never Give a Sucker an Even Break
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