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Message-ID: <CA+TsHUCXsWUKvi5jP2NS3K14_XLo_tArupanAieimcoQ7dr5Xg@mail.gmail.com>
Date: Tue, 1 May 2012 10:06:07 +0530
From: SAYANTAN DATTA <std2048@...il.com>
To: john-dev@...ts.openwall.com
Subject: Sayantan :Weekly Report #2
Accomplishments:
1. Implemented a function to find the optimum local work group size in
opencl-mscash2.
2. The following are not an accomplishment in strict sense but more of a
kind of experiment and the results should be helpful in future:
a. rotate() function caused huge performance drop on 7970 on bull. I
replaced the rotate function with a macro resulting in nearly 50%
performance improvement. With this change the opencl-mscash2 produces
around 72-73K real/s.
b. other cards(4890,570) I tested don't have such issues with rotate().
c. Vectorization of the code caused small(2-3%) performance drop on
7970 and 570.
Priorities:
1. More experimentation and optimization.
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