Re: Floating-point differences between ARM processors
Re: Floating-point differences between ARM processors
- Subject: Re: Floating-point differences between ARM processors
- From: Rick Mann <email@hidden>
- Date: Mon, 07 Jan 2013 15:24:35 -0800
On Jan 7, 2013, at 11:22 , Greg Parker <email@hidden> wrote:
> Note also that physics simulations will always need to be careful with the error inherent to finite precision floating-point arithmetic. IEEE specification of exact results for every operation wouldn't solve that.
We don't care so much about correct results as we do repeatable results. When you write a multiplayer Game Center game, you have to pass around initial conditions and expect the simulation to run deterministically across platforms.
--
Rick
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