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Re: [glob2-devel] Nicowar and desync
From: |
Cyrille Dunant |
Subject: |
Re: [glob2-devel] Nicowar and desync |
Date: |
Tue, 18 Jul 2006 21:56:33 +0200 |
User-agent: |
KMail/1.9.3 |
>
> Yeah, Kai already emailed me with a grep. I, unfortently, am not at my
> house, and I can't work on glob2 for atleast three weeks while my
> family moves. Worse yet, me might have to get modem-internet in our
> next house. Anyway, all of these usages are independant casts, so in
> my case, atleast the same CPU will give the same results every time.
no. Not even with the same compiler. The bits at the end of the mantissa are
_random_ they depend on the system state, the weather, and the bugs in your
hardware, and the manufacturer's breakfeast when they were built.
Do _not_ _ever_ depend on doubles for bit perfect reproducibility.
> I'll fix this as soon as I have time. Sorry everyone, my mistake.
CU
-- CFD
- [glob2-devel] Nicowar and desync, Stéphane Magnenat, 2006/07/16
- Re: [glob2-devel] Nicowar and desync, Bradley Arsenault, 2006/07/16
- Re: [glob2-devel] Nicowar and desync, Stéphane Magnenat, 2006/07/18
- Re: [glob2-devel] Nicowar and desync, Cyrille Dunant, 2006/07/18
- Re: [glob2-devel] Nicowar and desync, Bradley Arsenault, 2006/07/18
- Re: [glob2-devel] Nicowar and desync,
Cyrille Dunant <=
- Re: [glob2-devel] Nicowar and desync, Bradley Arsenault, 2006/07/18
- Re: [glob2-devel] Nicowar and desync, Bradley Arsenault, 2006/07/18
- Re: [glob2-devel] Nicowar and desync, Cyrille Dunant, 2006/07/18
- Re: [glob2-devel] Nicowar and desync, Bradley Arsenault, 2006/07/19
- Re: [glob2-devel] Nicowar and desync, Cyrille Dunant, 2006/07/19
- Re: [glob2-devel] Nicowar and desync, Bradley Arsenault, 2006/07/19
- Re: [glob2-devel] Nicowar and desync, Cyrille Dunant, 2006/07/18