phc-discussions - Re: [PHC] Argon optimized implementation

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Message-ID: <CAOLP8p6-axhDioxZGmes5rUYa_02h51hfaZ2K-K5tucmY+fgKA@mail.gmail.com>
Date: Fri, 11 Apr 2014 18:48:24 -0400
From: Bill Cox <waywardgeek@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] Argon optimized implementation

I'm seeing only slightly slower results on my Ivy Bridge machine.  I
get 9.31 cpb for 64MB, 4 threads, 18.4 cpb with 1.  13.28 cpb for
1GiB, 4 threads, 24.79 cpb with 1 thread.  I'm not sure what the
difference is.  I would expect very similar cpb between Sandy Bridge
and Ivy Bridge.  It could be memory speed.  Maybe more full output
would help:

Memory allocated: 1024 MBytes, 1 threads
Argon:  24.79 cpb 24786.66 Mcycles 7.6244 seconds

I integrated this into my PHC test bench, so any memory/speed reported
will be the optimized version.

Bill