Date: Fri, 26 Jul 2013 23:31:29 +0100 From: Rafael Waldo Delgado Doblas <lord.rafa@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Parallella: Litecoin mining Hello, 2013/7/26 Rafael Waldo Delgado Doblas <lord.rafa@...il.com> > V will be modified several times during the calculation and will need > whole 32KB per core. Can I load the binary executable image in just one > core memory area and run it from the rest of the cores? > > If we can do that the memory map will looks something like: > > 0-31K for V on first core > 32-63K for V on second core > ... > 416-447K for V on fourteenth core > 448-479K for V on fifteenth core > > 480-?? for binary executable image > ??-??? for XY B first core. > .... > ??-??? for XY B fifteenth core. > > With this approach only 15 of 16 cores can be used because there is no > memory for the sixteenth core. > In adition to my last mail, I read this "With the scrypt parameters used in litecoin’s implementation (N = 1024; p = 1; r = 1), each thread needs about 64-128 KB depending on the lookup_gap and thread_concurrency settings when mining with a GPU" here http://cryptocur.com/litecoin/ I need to find why there 64BK threads then I need to know what means lookup_gap and thread_concurrency. regards, Rafa Content of type "text/html" skipped
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