There is a real chance that this will happen driven by the need to have plenty of disk accesses and the cheapest compute capable GPUs or a modest CPU can handle the compute load for a single table. But it is not high on the TODO list. One could stitch a fast solution where clients monitor some URL for lookup requests and report on findings in their table subset to some cgi. 20 lines of perl.
On Mon, Jul 26, 2010 at 10:19:05AM -0700, Doktor Jeep wrote: > > For those of us who have more old boards and CPUs laying about, what are the > chances of a distributed computing application? > > > > > > > Date: Mon, 26 Jul 2010 19:11:54 +0200 > > From: sascha.kriss...@web.de > > To: a51@lists.reflextor.com > > Subject: Re: [A51] NVIDIA Tesla C1060 GPGPU > > > > On Mon, Jul 26, 2010 at 06:00:54PM +0100, Cal Leeming [Simplicity Media > > Ltd] wrote: > > > This might be a silly question but.. > > > > > > If there was a miscalculation due to hardware, would you be able to detect > > > such an occurrence, and re-process that calc again? > > > > > > > There is no obvious way to add some form of checksumming to the algorithm. > > The next best thing would be to compute every chain twice. Which is what > > i do during testing (and also with 2 different algos, one on the GPU and > > a reference on the CPU) and would be feasible if you cared for correctness. > > But then again even with a 1% error rate you would not do this for the > > rainbow tables, because the incorrect chains cannot lead to incorrect > > results and would only waste some space and some time during lookup when > > the lookup code works with them until they turn out not to produce > > a result. Then you would produce 1.01% more chains and live happily ever > > after. > > _______________________________________________ > > A51 mailing list > > A51@lists.reflextor.com > > http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51 > > _________________________________________________________________ > The New Busy is not the too busy. Combine all your e-mail accounts with > Hotmail. > http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4 > _______________________________________________ > A51 mailing list > A51@lists.reflextor.com > http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51 _______________________________________________ A51 mailing list A51@lists.reflextor.com http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
