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Date: Sat, 5 Mar 2016 19:14:10 -0300
From: Claudio André <>
Subject: Re: devices for --dev= option

W dniu 05.03.2016 o 18:45, Matus UHLAR - fantomas pisze:
 > yes, but I somehow couldn't get --dev

You are probably doing something wrong. Below a few examples of valid 
$ ../run/john -list=opencl-devices
[all devices info]

$ ../run/john -list=opencl-devices -dev=1
[only device 1 info]

 > autoswitching formats to nvidia or opencl versions would be great...

Examples of real usages, even JtR auto-detecting based on real hashes 
(and filtering only OpenCL formats).

$ ../run/john ~/data/ -form=opencl -mask:?l?l?a?d?a?a?a
Device 6: GeForce GTX TITAN X
Warning: detected hash type "Raw-SHA512-ng-opencl", but the string is 
also recognized as "Raw-SHA512-opencl"
Use the "--format=Raw-SHA512-opencl" option to force loading these as 
that type instead
Using default input encoding: UTF-8
Loaded 3062025 password hashes with no different salts 
(Raw-SHA512-ng-opencl [SHA512 OpenCL])

$ ../run/john -form=nt-opencl --test -dev=1
Device 1: Tahiti [AMD Radeon HD 7900 Series]
Benchmarking: nt-opencl, NT [MD4 OpenCL]...
Raw:    60817K c/s real, 76021K c/s virtual

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