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Date: Thu, 30 Aug 2012 01:37:44 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: OpenCL on OSX
On 08/28/2012 02:18 AM, magnum wrote:
> I got hold of a Macbook with Kepler GPU so I did some OpenCL testing.
> That was depressing. Every single format fails on GPU (while most or
> all work fine on CPU). There are also tons of benign but noisy
> warnings about things like comparing integers of different signs.
> I'll fix that too but it's not the real problem.
>
> The symptoms are just like a few others already have reported:
>
> OpenCL platform 0: Apple, 2 device(s). Using device 1: GeForce GT
> 650M Compilation log: Error building kernel. Returned build code:
> -11. DEVICE_INFO=130 OpenCL error (CL_BUILD_PROGRAM_FAILURE) in file
> (common-opencl.c) at line (136) - (clBuildProgram failed.)
Some progress. After forcing discrete GPU (OSX bug), CUDA works fine (if
running auto-switching GPU, it kernel panics). Also, Some OpenCL formats
work now (I committed a load of minor fixes):
CUDA Device #0
Name: GeForce GT 650M
Compute capability: sm_30
Number of multiprocessors: 2
Clock rate: 878 Mhz
Total global memory: 1.0 GB
Total shared memory per block: 48.0 kB
Total constant memory: 64.0 kB
Kernel execution timeout: Yes
Concurrent copy and execution: Yes
Warp size: 32
Benchmarking: md5crypt [CUDA]... DONE
Raw: 157827 c/s real, 157827 c/s virtual
Benchmarking: M$ Cache Hash MD4 len(pass)=8, len(salt)=13 [CUDA]... DONE
Raw: 21665K c/s real, 21884K c/s virtual
Benchmarking: M$ Cache Hash 2 (DCC2) PBKDF2-HMAC-SHA-1 [CUDA]... DONE
Raw: 4843 c/s real, 4843 c/s virtual
Benchmarking: phpass MD5 ($P$9 lengths 1 to 15) [CUDA]... DONE
Raw: 158117 c/s real, 156582 c/s virtual
Benchmarking: Password Safe SHA-256 [CUDA]... DONE
Raw: 20928 c/s real, 20928 c/s virtual
Benchmarking: Raw SHA-224 [CUDA]... DONE
Raw: 25305K c/s real, 25305K c/s virtual
Benchmarking: Raw SHA-256 [CUDA]... DONE
Raw: 25057K c/s real, 25057K c/s virtual
Benchmarking: Raw SHA-512 [CUDA]... DONE
Raw: 9074K c/s real, 9074K c/s virtual
Benchmarking: sha256crypt (rounds=5000) [CUDA]... DONE
Raw: 2466 c/s real, 2443 c/s virtual
Benchmarking: sha512crypt (rounds=5000) [CUDA]... DONE
Raw: 2059 c/s real, 2059 c/s virtual
Benchmarking: WPA-PSK PBKDF2-HMAC-SHA-1 [CUDA]... DONE
Raw: 5973 c/s real, 5973 c/s virtual
Benchmarking: Mac OS X 10.7+ salted SHA-512 [CUDA]... DONE
Many salts: 9766K c/s real, 9671K c/s virtual
Only one salt: 7349K c/s real, 7419K c/s virtual
Platform #0 name: Apple
Platform version: OpenCL 1.2 (Jun 20 2012 14:18:19)
Device #0 name: Intel(R) Core(TM) i7-3615QM CPU @ 2.30GHz
Device vendor: Intel
Device type: CPU (LE)
Device version: OpenCL 1.2
Driver version: 1.1
Global Memory: 8192 MB
Global Memory Cache: 64 bytes
Local Memory: 32 KB (Global)
Max clock (MHz) : 2300
Max Work Group Size: 1024
Parallel compute cores: 8
Device #1 name: GeForce GT 650M
Device vendor: NVIDIA
Device type: GPU (LE)
Device version: OpenCL 1.1
Driver version: CLH 1.0
Global Memory: 1024 MB
Global Memory Cache: 0 bytes
Local Memory: 48 KB (Local)
Max clock (MHz) : 405
Max Work Group Size: 1024
Parallel compute cores: 2
Stream processors: 16 (2 x 8)
That last line is incorrect. It should be 384 (2 x 192). Claudio's code
does not work because Apple's nvidia framwork does not export all stuff
that native nvidia do. Not sure how to fix.
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Benchmarking: md5crypt [OpenCL]... DONE
Raw: 68266 c/s real, 7372K c/s virtual
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Local work size (LWS) 64, Global work size (GWS) 2097152
Benchmarking: MySQL 4.1 double-SHA-1 [OpenCL]... DONE
Many salts: 11870K c/s real, 83886K c/s virtual
Only one salt: 11983K c/s real, 89877K c/s virtual
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Benchmarking: phpass MD5 ($P$9 length 8) [OpenCL]... DONE
Raw: 127746 c/s real, 4300K c/s virtual
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Benchmarking: Password Safe SHA-256 [OpenCL]... DONE
Raw: 15753 c/s real, 5734K c/s virtual
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Local work size (LWS) 128, Global work size (GWS) 2097152
Benchmarking: Raw MD4 [OpenCL]... DONE
Raw: 19972K c/s real, 69905K c/s virtual
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Local work size (LWS) 128, Global work size (GWS) 2097152
Benchmarking: Raw MD5 [OpenCL]... DONE
Raw: 39064K c/s real, 99614K c/s virtual
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Local work size (LWS) 64, Global work size (GWS) 2097152
Benchmarking: Raw SHA-1 OpenCL [OpenCL]... DONE
Raw: 23741K c/s real, 119837K c/s virtual
OpenCL platform 0: Apple, 2 device(s).
Using device 1: GeForce GT 650M
Local work size (LWS) 1024, global work size (GWS) 2048
Benchmarking: sha256crypt (rounds=5000) [OpenCL]... DONE
Raw: 2482 c/s real, 409600 c/s virtual
Not bad for a laptop. The rest of the OpenCL formats do not yet work though.
magnum
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