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Message-ID: <4BAE33CD.5060104@bredband.net> Date: Sat, 27 Mar 2010 17:35:25 +0100 From: "Magnum, P.I." <rawsmooth@...dband.net> To: john-users@...ts.openwall.com Subject: Re: bench.c fix for extreme c/s figures On 03/27/2010 01:27 PM, Solar Designer wrote: > On Sat, Mar 27, 2010 at 01:12:26PM +0100, Magnum, P.I. wrote: >> The Jumbo patches use long long's anyway so I now fixed bench.c without >> the half-assed try to keep using the int64. I just uploaded fullmpi-6 to >> the wiki. Works fine on Linux 32 and 64, I hope it works for W.A too. > > We'll see it it works for W.A. or not. Meanwhile, I notice that it > will likely fail on 32-bit builds, because neither "count" nor "clk_tck" > is cast to a 64-bit type before you multiply them. You will likely want > to add a cast to (unsigned long long) in two places. Also, I suggest > that you use "unsigned long long", not just "long long". > > Thanks, > > Alexander Ah, yes. I never pushed my 32-bit tests towards that high numbers. There are most likely more of such ignorance in my patches. It works fine for W.A though. I'll add the casts and have a look for other similar misses. Some MPI environments don't support reduction for unsigned long longs so I learnt to avoid them, but in this case no reduction is used so I guess it's a good idea too. thanks! magnum
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