I can not keep with your plans up. Does any of you have $1G+ on your
account to run such a project?
Currently, you can get a well documented CPU (let's stay at ARM), even
with several cores, there are no hidden things and you can create the
ultimate compiler for it. There is no need to have an opensource cpu -
nobody can benefit from having the possibility to improve on it.
If Intel would hypotetically release its "sources" for their CPUs - can
you manage to make improvements on it and release you own flavor if
their cores? Potentionally not.
CPU's are today not a secret thing, the manufacturer wants you to use it
to the last feature. So it is a waste of effort today to replace it.
What I would suggest, is to recreate just those peripherals which got
the most issues with the opensource world (graphics, audio, hardware
codecs, etc), then focus on the ones which got severe marketing
limitations (e.g. professional audio - 192k/24 is not sold for the
adequate price of the components, being those the best they can be,
there is always some 10x multiplier in price, same goes for
consumer-broadcast video).
Once you own the whole peripheral business, you can replace the
processor too.
Daniel
On 12/08/2012 11:59 PM, gary sheppard wrote:
I agree! The thing is, we first need to agree on an Architecture type /
ISA and the overall goal before the code can begin to flow.
Believe me, I am not stuck on OpenSPARC, but I have yet to see any other
CPU's that are opensource that are as complete and/or performant with a
generally good software stack already in place.
Troy, can you poke at the T2 a bit and see how it looks under the hood?
How difficult would it be to update to a DDR3 memory controller or ...?
I have seen mentioned someplace GDDR5 being used for main system memory.
For a highly performant SoC would such a thing make any sense?
On Sat, Dec 8, 2012 at 2:37 PM, Troy Benjegerdes <[email protected]
<mailto:[email protected]>> wrote:
Troy Benjegerdes:
* Switch mode power converter prototyping
(aka, letting the magic smoke out of IRF511's)
* System architecture and performance evaluation [1]
* System software integration, board bring-up, testing
Motorola MTX (dual 604e)
CSPI Multicomputer (4 G4s + Myrinet on a board)
* System interconnect testing (SCL -> scl.ameslab.gov
<http://scl.ameslab.gov>)
SCL G4 Mac cluster w/myrinet [2]
SCL SCI interconnect cluster [3]
SCL Cray XD1 [4]
SCL Power4/Power5 Infiniband cluster [5]
Cray Gemini & Aries interconnect
* Infiniband-FPGA project [6]
(also known as cat-herding undergrad students)
* NetPIPE benchmark [7]
* Start-up and new product business development
Black Lab Linux [8]
Freedom Fertilizer [9]
Cooperative Energy Futures [10]
The q3ube and The Brick [11]
Community Supported Development model [12]
* First (known) proposal for a full DFSG-compliant system design
(Debian Free Software guidelines) [11]
[1]
http://static.usenix.org/event/usenix04/tech/sigs/full_papers/benjegerdes/benjegerdes_html/usenix-ib-04.html
[2]
http://web.archive.org/web/20110620205553/http://www.scl.ameslab.gov/Projects/PPC_cluster/PPC_cluster.html
[3]
http://web.archive.org/web/20110620205544/http://www.scl.ameslab.gov/Projects/SCI_cluster/SCI_cluster.html
[4]
http://web.archive.org/web/20110620205555/http://www.scl.ameslab.gov/Projects/XD1/
[5]
http://web.archive.org/web/20110620205547/http://www.scl.ameslab.gov/Projects/IBMCluster/p655.html
[6] http://seniord.ece.iastate.edu/may0904/
[7] http://bitspjoule.org/
[8] http://en.wikipedia.org/wiki/Black_Lab_Linux
[9] http://freedomfertilizer.com
[10] http://cooperativeenergyfutures.com/
[11] http://q3u.be
[12] http://q3u.be/CSD.html
> Dear list members, answer this question honestly :-)
> And only when many people have answered,
> Tim can start to organise work and assign tasks.
>
>
> Today my abilities are :
> * Actel Flash FPGA : full workflow and PCB design
> * VHDL : simulation (GHDL) and synthesis
> * PCB : SMI (aluminium), FR4 (2 sides), Kapton
> I'm looking at a provider for 4 layers FR4.
> * Layout : I have Eagle pro, manual routing.
> * soldering : down to 0603, no BGA
> * Programming : low level and its tools (just look at
> http://yasep.org)
> * Languages : C, VHDL, Asm (many CPU), JS (plus some bash,
> a pinch of PHP, notions of other script languages)
> * Architecture : I created 3 ISAs, including F-CPU and YASEP,
> and more will certainly appear in the future...
> Besicly I'm focused on embedded, low cost, DIY technologies.
> I should be able to revive http://wiki.actuino.org/doku.php?id=layout
> in 2013 or 2014, my todo list is currently exploding...
>
>
>
> >Is the GPLv2 compatible with AGPLv3?
>
> who cares, if everything can be under AGPLv3? :-)
>
> I believe that is is compatible for 2 reasons :
> *AGPLv3 adds on simple part that is not mutually exclusive
> with the GPLv3 : the fact that you provide the sources online.
> *GPLv2 is not exclusive with v3 because works should be licensed
> with a "GPLvX or later". GPLv3 is meant to be a compatible
> extension
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