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Message-ID: <CABob6iqqChD_=3+YWQ4ieX6UVO8caYTCPH43Yh+nOtkLpvpnmw@mail.gmail.com>
Date: Wed, 7 Aug 2013 21:45:50 +0200
From: Lukas Odzioba <lukas.odzioba@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: --fork using different OpenCL devices
2013/8/7 magnum <john.magnum@...hmail.com>:
> The idea is to have -fork pick a different device (starting from 0 or picking from a given list) for each child. Picture having two 7990 cards for a total of four devices. Using "-fork=4" with an OpenCL format would pick device 0 for the mother process, device 1 for first child and so on. Only very fast formats [where set_key() is a bottleneck] would benefit.
What would be the speed of slower+faster device combination? 2*slower?
For homogenous system it is good solution anyway.
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