What sort of GPU would be needed? I have a spare 7900GS that
could be thrown
to the cause.
Cheers,
Kris
-----Original Message-----
From: Frédéric Bastien [mailto:nouiz nouiz.org]
Sent: Thursday, 16 November 2006 8:58 AM
To: Hardware
Subject: Re: [Hardware] Fully unrolled RC5 on FPGA
Hi,
The current GPU are being transformed to stream processor. I
assume we
can transform the RC5 algorithm on this architecture by
streaming the
key to the engines. But I never coded for GPU or the RC5. I
suppose,
this approach will be not have an optimized processor as an
ASIC or an FPGA.
But, how many people are ready to buy a new board for this
purpose? How
many people who buy new computer with a good GPU will accept
to share
it? What I'm telling is that I think their is more people in
the second
group. I see it as the same reason why we use a distributed
architecture
instead of buying a super-super-computer. It is cheaper as
people
already have the hardware and the power cost is not counted
by the
individual who install the software.
But as all project, we need people who can invest time in
them. I can't.
Their is people that are interested to make an
implementation on FPGA.
This is GREAT and give more chance that this will be done
especially
since their is a working implementation. But, they need to
finish the
last step.
Just my personal thinking on this project. Continue the good
work!!
Frédéric Bastien
Olivier Meyer wrote:
> Folding at home is trying to use graphic cards, but
there is one reason
> why FPGA is much better:
> A graphics card is NOT DESIGNED to execute general
purpose code. It is
> made to render video and 3D images. What Folding has
done is they have
> managed to use the restricted instruction set to do
their
> protein-folding stuff. An FPGA design is the one thing
less customisable
> than an ASIC. We can choose whatever we want to put on
the FPGA, and we
> can make it check 1 key/cycle. I wonder, can our FPGA
implementation be
> used on cheap, low power FPGAs that a student can
afford (hint, hint!).
>
> Has anyone tried to use 74HC discrete logic to make an
RC5-72 core?
>
>
> On 11/15/06, *Frédéric Bastien* <nouiznouiz.org
> <mailto:nouiznouiz.org>> wrote:
>
> To my knowledge Folding at home try to use graphic
card and not FPGA.
> This could be interesting as this don't require new
hardware. But we
> will need people that have time to implement it.
>
> Frédéric Bastien
>
> Olivier Meyer wrote:
> > If we will use a microcontroller to control
the FPGA, an AVR
> would be
> > much better than a PIC for many reasons:
> > *more register space
> > *a GCC port
> > *higher speed.
> >
> > Notice that we got to the FPGA before Folding
at Home!
> >
> > On 11/15/06, * gmeuricedice.ucl.ac.be
> <mailto:gmeuricedice.ucl.ac.be>
<mailto:gmeuricedice.ucl.ac.be
> <mailto:gmeuricedice.ucl.ac.be>>*
> > <gmeuricedice.ucl.ac.be
<mailto:gmeuricedice.ucl.ac.be>
> <mailto:gmeuricedice.ucl.ac.be
<mailto:gmeuricedice.ucl.ac.be>>>
> wrote:
> >
> > Bonjour,
> >
> > Tuesday, November 14, 2006, 8:41:25 PM,
you wrote:
> >
> > JLB> Hi Guerric,
> >
> > JLB> Any chance I can get you go
target your design to an
> > XCV2000E-6BG560C
> > JLB> and tell me if it fits and what
the clock rate estimate
is?
> >
> > JLB> It's just a data point for me to
compare two year old
> data to
> > the XCV4LX
> > JLB> numbers.
> >
> > JLB> Thanks,
> > JLB> John
> >
> > Ok, I can do that.
> > The design will need 4 times the number
of bRAMs compared
> with the
> > Virtex4 design: 16-bit data width and no
"read before write"
> mode.
> >
> > With this kind of RAMs, a register on the
B signal of the
> KeySchedule
> > bloc could be saved using the fact that
input is mirrored to
the
> > output of the bRAM while writing. I
currently don't plan to
> make this
> > optimization. (this would mean a saving
of 26*3 *32/2 = 1250
> Slices).
> > Whatever, it is probably bad from a
place&route point of view.
> >
> > I will test the full design with the new
long shift register
> and will
> > provides the implementation results.
> >
> > --
> > Guerric
> >
> >
> >
_______________________________________________
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> > Hardwarelists.distributed.net
> <mailto:Hardwarelists.distributed.net>
> <mailto:Hardwarelists.distributed.net
> <mailto:Hardwarelists.distributed.net>
>
> > http://lists.distributed.net/mailman/listinfo/hardware
> >
> >
> >
> >
> > --
> > -----------------------
> > Olivier V. Meyer
> > Congress shall make no law respecting an
establishment of
> religion, or
> > prohibiting the free exercise thereof; or
abridging the freedom of
> > speech, or of the press; or the right of the
people peaceably to
> > assemble, and to petition the government for
a redress of
grievances.
> >
> >
> >
>
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> >
> >
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> <http://lists.distributed.net/mailman/listinfo/hardware
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> _______________________________________________
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>
>
>
>
> --
> -----------------------
> Olivier V. Meyer
> Congress shall make no law respecting an establishment
of religion, or
> prohibiting the free exercise thereof; or abridging the
freedom of
> speech, or of the press; or the right of the people
peaceably to
> assemble, and to petition the government for a redress
of grievances.
>
>
>
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