Date: Tue, 8 Nov 2011 13:46:24 -0500 From: Nigel Sollars <nsollars@...il.com> To: john-users@...ts.openwall.com Subject: Re: Linux MIPS Hi, Sorry for the lag time between posts, On Sat, Nov 5, 2011 at 10:52 AM, Solar Designer <solar@...nwall.com> wrote: > On Sat, Nov 05, 2011 at 10:36:05AM -0400, Nigel Sollars wrote: > > Ok, vanilla John builds with -mips3 , trying the same with Jumbo set. > > I meant "-mips3 -mgp64" (two options at once), not just -mips3. You > need to check that you start getting "64/64" in --test output for DES. > -mpg64 complains about using a 32bit ABI > > > I was not sure if this one was 64bit or not, Ive been trying to get more > > info on the architecture. Sorry for any confusion there. > > MIPS III is 64-bit. > > http://www.linux-mips.org/wiki/Instruction_Set_Architecture#MIPS_III > > "MIPS III was introduced 1992 in the R4000. It adds 64-bit registers and > integer instructions and a square root FP instruction." > > R4600 is a MIPS III CPU, and I found no mentions of it lacking any part > of the MIPS III architecture. > > http://www.linux-mips.org/wiki/R4600 > http://en.wikipedia.org/wiki/R4600 > > Apparently, you're already running a 64-bit kernel (but a 32-bit userland?) > > Anyway, even with a 2x speed boost at DES from going 64-bit, you'll have > poor performance overall, compared to modern machines. Your cluster > will perform slower than a single core in a modern CPU does. But you're > doing this just for fun, right? > > Yeah its all fun here, since I have these units available thought id do some experimentation with them. > Alexander > -- “Science is a differential equation. Religion is a boundary condition.” Alan Turing
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