Vincent Diepeveen (diep@xs4all.nl) on 7/25/10 wrote:
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>Yeah and without Michael knowing some of the most popular multimedia software he
>runs on his own machine are using the intel math libraries (double precision SSE2+) for all that.

Unless he have an Audiophile or similar sound card in his PC and a guitar or so attached to it the only double precision multimidia software that could be in his PC is unoptimized software, sorry Vicent, there are cases for using double precision in signal processing like Michael noted but for normal consumer multimidia software it's just a waste of resources.


>HPC is all double precision.

I wasn't willing to cite other cases but molecular dynamics (I mean, Gromacs) is mostly single precision, it's accurate enough and 35% (or DP is 35% slower?) faster than DP according to a friend.

>Please note Michael doesn't really see the difference between FFT and DFT, but we'll forgive him that.

I think, it's you who don't...

>Tells you more about who Michael is, rather than what HPC is doing. HPC is FFT not DFT.

Well... I don't think Michael is the kind of guy who have an Audiophile in his PC or even care about good sound transformations, if Ungo is the guy I'm thinking he is then he is a better candidate for this, but I still think he doesn't do it.