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Date: Tue, 2 Jun 2015 22:37:35 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: PHC: Parallel in OpenCL
Agnieszka,
On Tue, Jun 02, 2015 at 08:36:36PM +0200, Agnieszka Bielec wrote:
> the speed decreases after change this loop:
>
> for (int i = 0; i < 16; i++) {
> t1 = k[i] + w[i] + h + Sigma1(e) + Ch(e, f, g);
[...]
> a = t1 + t2;
> }
>
> to
>
> for (int i = 0; i < 10; i++) {
> t1 = k[i] + w[i] + h + Sigma1(e) + Ch(e, f, g);
[...]
> a = t1 + t2;
> }
>
> for (int i = 10; i < 15; i++) {
> t1 = k[i] + h + Sigma1(e) + Ch(e, f, g);
[...]
> a = t1 + t2;
> }
>
> t1 = k[15] + w[15] + h + Sigma1(e) + Ch(e, f, g);
[...]
> a = t1 + t2;
What were you trying to accomplish with this experiment?
> in the same branch parallel_opt as I said you on IRC.
> this can't be fault of split kernels
What does this have to do with split kernels?
Alexander
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