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Message-ID: <20150705060519.GA26758@openwall.com>
Date: Sun, 5 Jul 2015 09:05:19 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: PHC: Lyra2 on GPU
On Sun, Jul 05, 2015 at 12:52:48AM +0200, Agnieszka Bielec wrote:
> [a@...er run]$ GOMP_CPU_AFFINITY=0-31 ./john --test --format=lyra2
> Will run 32 OpenMP threads
> Benchmarking: Lyra2, Generic Lyra2 [ ]... (32xOMP) DONE
> Speed for cost 1 (t) of 8, cost 2 (m) of 8
> Many salts: 49792 c/s real, 1556 c/s virtual
> Only one salt: 49504 c/s real, 1546 c/s virtual
>
> [a@...er run]$ GOMP_CPU_AFFINITY=0-31 ./john --test --format=lyra2-lm
> Will run 32 OpenMP threads
> Benchmarking: Lyra2-lm, Generic Lyra2 [ ]... (32xOMP) DONE
> Speed for cost 1 (t) of 8, cost 2 (m) of 8
> Many salts: 38848 c/s real, 1263 c/s virtual
> Only one salt: 42272 c/s real, 1376 c/s virtual
What's the difference between Lyra2 and Lyra2-lm?
Can you set reasonable comments for them, please? In place of the
"Generic Lyra2 [ ]".
Is the memory (de)allocation overhead kept out of the loop already?
I previously suggested that you reuse yescrypt's yescrypt-platform.c:
*_region() functions for this, so that we use the same memory allocation
mechanism for all PHC finalists.
Alexander
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