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Message-ID: <4FBAB9FF.9000906@gmail.com>
Date: Mon, 21 May 2012 18:56:15 -0300
From: Claudio André <claudioandre.br@...il.com>
To: john-dev@...ts.openwall.com
Subject: Nvidia compiler bug
Hi, looking at the "verbosity" of Nvidia compiler and comparing against
Lukas CUDA code compiler output (thanks for your good code), i realized
the compiler was doing something silly.
So, i used another valid path to achieve what i want, checked if it was
doing what i was expecting and:
- result 3,2x faster.
Local work size (LWS) 512, Keys per crypt (KPC) 7680
Benchmarking: crypt SHA-512 (rounds=5000) [OpenCL]... DONE
Raw: 11405 c/s real, 11405 c/s virtual
If you use __local (or tried it and failed) try your code again and
check if smem is thereas it should be.
Claudio.
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