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Message-ID: <CAAufJG4A01jCgcp=-PL86FSo7NAvWt3uC9rddaL59W-=1MwRmQ@mail.gmail.com>
Date: Wed, 2 May 2012 15:50:06 -0300
From: Claudio André <claudioandre.br@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: cryptsha512-opencl
>cryptsha512-opencl currently in magnum-jumbo still fails tests on both
>GPUs in the bull machine.
It works on NVIDIA now.
OpenCL platform 0: NVIDIA CUDA, 1 device(s).
Using device 0: GeForce GTX 570
...
Calculating best keys per crypt, this will take a while Optimal keys per
crypt 7168
(to avoid this test on next run, put "cryptsha512_KPC = 7168" in john.conf,
section [Options:OpenCL])
Local work size (LWS) 32, Keys per crypt (KPC) 7168
Benchmarking: crypt SHA-512 (rounds=5000) [OpenCL]...DONE
Raw: 3018 c/s real, 3018 c/s virtual
I liked this style of KPC seeking. I recommend.
----
kpc: 512 1051 c/s 5259446 rounds/s 0.487 sec per crypt_all()+
kpc: 1024 2089 c/s 10446542 rounds/s 0.490 sec per crypt_all()+
kpc: 1536 1583 c/s 7915400 rounds/s 0.970 sec per crypt_all()
kpc: 2048 2102 c/s 10514150 rounds/s 0.974 sec per crypt_all()
kpc: 2560 2611 c/s 13059767 rounds/s 0.980 sec per crypt_all()+
kpc: 3072 2106 c/s 10532374 rounds/s 1.458 sec per crypt_all()
kpc: 3584 2448 c/s 12243880 rounds/s 1.464 sec per crypt_all()
kpc: 4096 2785 c/s 13929308 rounds/s 1.470 sec per crypt_all()+
kpc: 4608 2367 c/s 11836217 rounds/s 1.947 sec per crypt_all()
kpc: 5120 2622 c/s 13111256 rounds/s 1.953 sec per crypt_all()
kpc: 5632 2865 c/s 14326604 rounds/s 1.966 sec per crypt_all()+
kpc: 6144 2525 c/s 12629180 rounds/s 2.432 sec per crypt_all()
kpc: 6656 2727 c/s 13638341 rounds/s 2.440 sec per crypt_all()
kpc: 7168 2917 c/s 14586892 rounds/s 2.457 sec per crypt_all()+
...
2012/4/29 Solar Designer <solar@...nwall.com>
> Claudio -
>
> cryptsha512-opencl currently in magnum-jumbo still fails tests on both
> GPUs in the bull machine. Can you please reproduce this and try to fix
> it, using your remote access to this machine?
>
> Lukas' CUDA code:
>
> user@...l:~/john/magnum-jumbo/src$ ../run/john -te -fo=cryptsha512-cuda
> Benchmarking: cryptsha512-cuda [SHA512-based CRYPT]... DONE
> Raw: 3853 c/s real, 3853 c/s virtual
>
> OpenCL code on the same card:
>
> user@...l:~/john/magnum-jumbo/src$ ../run/john -te -fo=cryptsha512-opencl
> OpenCL platform 0: NVIDIA CUDA, 1 device(s).
> Using device 0: GeForce GTX 570
> Segmentation fault (core dumped)
>
> OpenCL code on HD 7970:
>
> user@...l:~/john/magnum-jumbo/src$ ../run/john -te -fo=cryptsha512-opencl
> -pla=1OpenCL platform 1: AMD Accelerated Parallel Processing, 2 device(s).
> Using device 0: Tahiti
> Compilation log: LOOP UNROLL: pragma unroll (line 210)
> Unrolled as requested!
> LOOP UNROLL: pragma unroll (line 140)
> Unrolled as requested!
> [...]
> LOOP UNROLL: pragma unroll (line 333)
> Unrolled as requested!
>
> Local work size (LWS) 64, Keys per crypt (KPC) 8192
> Benchmarking: crypt SHA-512 (rounds=5000) [OpenCL]... FAILED
> (get_hash[0](0))
>
> OpenCL code on CPU (works):
>
> user@...l:~/john/magnum-jumbo/src$ ../run/john -te -fo=cryptsha512-opencl
> -pla=1 -dev=1
> OpenCL platform 1: AMD Accelerated Parallel Processing, 2 device(s).
> Using device 1: AMD FX(tm)-8120 Eight-Core Processor
> Compilation log: LOOP UNROLL: pragma unroll (line 140)
> Unrolled as requested!
> LOOP UNROLL: pragma unroll (line 130)
> Unrolled as requested!
> [...]
> LOOP UNROLL: pragma unroll (line 333)
> Unrolled as requested!
>
> Local work size (LWS) 64, Keys per crypt (KPC) 8192
> Benchmarking: crypt SHA-512 (rounds=5000) [OpenCL]... DONE
> Raw: 1432 c/s real, 179 c/s virtual
>
> (BTW, I reverted the CPU to stock clocks for now.)
>
> Thanks,
>
> Alexander
>
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