By: anon (anon.delete@this.anon.com), October 17, 2012 5:12 am
Room: Moderated Discussions
Robert Myers (rbmyersusa.delete@this.gmail.com) on October 17, 2012 4:34 am wrote:
> anon (anon.delete@this.anon.com) on October 17, 2012 1:17 am wrote:
>
> >
>
> > Exactly. This is why
> > low bandwidth, high latency memory and
> communications is not the problem, but
> > the *solution*. Together with
> caches and changed software assumptions, of
> > course.
> >
>
> Not to
> mention changed physics.
There are physical problems which do not require it.
> If you can find an advanced physics text that
> ultimately does not lean heavily on the ability to go back and forth with
> facility between physical and momentum space (or whatever you choose to call it)
> using the transform that diagonalizes the momentum operator (the derivative),
> I'll be impressed. Since you seem to think that caches and changed software
> assumptions can address all problems of importance,
Wrong.
> you may have to be told
> explicitly that the transform in question is the Fourier transform. The last
> time I was paying close attention, Blue Gene could use all of 512 of its tens of
> thousands of processors effectively in doing a volumetric FFT. I'll say more
> later in the day.
>
> > Declaring the solution to in fact be the problem and
> vowing to do
> > away with it just leaves you holding the bigger problem.
> Handwaving about
> > "streaming" or "optical" does not solve the problem.
> People need something that
> > works now.
>
> If wishes were horses and all
> that.
Yep.
> anon (anon.delete@this.anon.com) on October 17, 2012 1:17 am wrote:
>
> >
>
> > Exactly. This is why
> > low bandwidth, high latency memory and
> communications is not the problem, but
> > the *solution*. Together with
> caches and changed software assumptions, of
> > course.
> >
>
> Not to
> mention changed physics.
There are physical problems which do not require it.
> If you can find an advanced physics text that
> ultimately does not lean heavily on the ability to go back and forth with
> facility between physical and momentum space (or whatever you choose to call it)
> using the transform that diagonalizes the momentum operator (the derivative),
> I'll be impressed. Since you seem to think that caches and changed software
> assumptions can address all problems of importance,
Wrong.
> you may have to be told
> explicitly that the transform in question is the Fourier transform. The last
> time I was paying close attention, Blue Gene could use all of 512 of its tens of
> thousands of processors effectively in doing a volumetric FFT. I'll say more
> later in the day.
>
> > Declaring the solution to in fact be the problem and
> vowing to do
> > away with it just leaves you holding the bigger problem.
> Handwaving about
> > "streaming" or "optical" does not solve the problem.
> People need something that
> > works now.
>
> If wishes were horses and all
> that.
Yep.
