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Date: Sat, 21 Apr 2012 17:12:25 -0300
From: Claudio André <claudioandre.br@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: SHA-512 OpenCL
> I now tried your format on an AMD Loveland (E2 mobile) and it
> segfaults just the same way as with nvidia. I just got a vague idea:
> Are you developing on 32-bit? Has anyone ran this format successfully
> on 64-bit? magnum
I only run it under Ubuntu 64 bits. 2 different computers (desktop and
notebook), but really almost the same "environment".
It means:
- 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64.
- SDK 2.6 and 12.2 Catalyst (downloaded from AMD).
I can segfault here if i start to do crazy things (like use [more]
global variables. Ok not that crazy). Otherwise, it runs fine.
I'll try to shake may computer before moving to Ubuntu 12.04. I might
find something. Move to 32 bits is going to be easy.
Cheers.
Even a "unrolled", "with problems" work here:
----
OpenCL platform 0: AMD Accelerated Parallel Processing, 2 device(s).
Using device 0: Juniper
Compilation log:
Warning: kernel_crypt kernel has register spilling. Lower performance is
expected.
Local work size (LWS) 32, Keys per crypt (KPC) 8192
Loaded 3 password hashes with 3 different salts (crypt SHA-512 [OpenCL])
odh (us_teste_10)
o9 (us_teste_08)
guesses: 2 time: 0:00:02:10 DONE (Sat Apr 21 17:00:23 2012) c/s: 683
trying: 5ru - 081
Use the "--show" option to display all of the cracked passwords reliably
- test
OpenCL platform 0: AMD Accelerated Parallel Processing, 2 device(s).
Using device 0: Juniper
Compilation log:
Warning: kernel_crypt kernel has register spilling. Lower performance is
expected.
Local work size (LWS) 32, Keys per crypt (KPC) 8192
Benchmarking: crypt SHA-512 (rounds=5000) [OpenCL]... DONE
Raw: 675 c/s real, 409600 c/s virtual
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