for Chinese readers only:
Quote
目前只接受开发者订单，也就是说现在是没有bitsteam的。如果你没有bitsteam的开发能力，那么只能用icarus的bitsteam，或者用不起来。
每人最多一个。
每人最多一个。
Topic: FPGA development board "Lancelot" - accept bitsteam developer's orders. - page 12. (Read 101892 times)
August 05, 2012, 03:52:56 AM
add order details and some new pictures.
for Chinese readers only:
for Chinese readers only:
July 27, 2012, 11:08:58 PM
I wonder why not more people try to implement this obviously superior implementation (/me looks at the Cairnsmore1 devs...)
It appears to trigger slow convergence in the place and route phases. The unrolled implementation has the similar problem, but less bad.It seems like the heuristics in the global optimization phases can't find an usable gradient which could be used to guide the optimizer. So it kind of wanders in a fog over the terrain consisting of small hills and shallow valleys.
yep, so we must use manually PAR. this really cost a LOT of man hour which is very very expensive.
PS:
i will check and answer personal messages after i finish the bitsteam work, unless you placed a developer order.
July 27, 2012, 02:24:42 PM
I wonder why not more people try to implement this obviously superior implementation (/me looks at the Cairnsmore1 devs...)
It appears to trigger slow convergence in the place and route phases. The unrolled implementation has the similar problem, but less bad.It seems like the heuristics in the global optimization phases can't find an usable gradient which could be used to guide the optimizer. So it kind of wanders in a fog over the terrain consisting of small hills and shallow valleys.
July 26, 2012, 10:45:10 PM
these days:
still very busy at multiple works. 70% is school work, and i put all my spare time on lancelot project. to 3~4:00AM everyday.
i work together with the software guys, now the new bitsteam is doing the optimization work. we must push it to 500-550MH/s.
hardware is ready 5 days ago.
still very busy at multiple works. 70% is school work, and i put all my spare time on lancelot project. to 3~4:00AM everyday.
i work together with the software guys, now the new bitsteam is doing the optimization work. we must push it to 500-550MH/s.
hardware is ready 5 days ago.
At 250-275 Mh/s per FPGA, I presume you designed it using the "sea-of-tiny hashers" model, like bitfury did. If that's the case, good work! I wonder why not more people try to implement this obviously superior implementation (/me looks at the Cairnsmore1 devs...)
July 26, 2012, 11:21:45 AM
PS:
accept bitsteam developer orders form now.
accept bitsteam developer orders form now.
So, I may order DEV KIT now? Do I need to email to you?
July 26, 2012, 09:35:38 AM
Don't worry, we're just interested in keeping updated. Thanks for letting us know what is going on. Hopefully when your guy gets back from the US you'll be set! I'm glad you're not taking preorders till you are ready.
July 26, 2012, 08:33:03 AM
Update? ngzhang?
From his profile :
Last Active: 23-07-2012, 22:07:55
Last Post: 15-07-2012, 00:46:00
on: 12-07-2012, 17:40:47 :
will have a final bitsteam update next week(i hope). and completely change the architecture.
please wait for that before do any optimization effort.
Its only been 14 days since that announcement, I think we can hold off on the ropes and pitchforks for a bit
kind regards
So certainly no reason to be impatient ...
yeah, so i don't like to withdraw any pre-order money to give me any more pressure when i focus on doing something.
these days:
still very busy at multiple works. 70% is school work, and i put all my spare time on lancelot project. to 3~4:00AM everyday.
i work together with the software guys, now the new bitsteam is doing the optimization work. we must push it to 500-550MH/s.
hardware is ready 5 days ago.
a reason of delay is one of the software guy go to USA, we only have another 1 people to do the work. (not including me) a good news is he will come back at 2/8, but we want to release the bitsteam earlier.
apologize for any misbehavior about didn't replay the PMs or mails.
PS:
accept bitsteam developer orders form now.
July 26, 2012, 04:49:36 AM
Update? ngzhang?
From his profile :
Last Active: 23-07-2012, 22:07:55
Last Post: 15-07-2012, 00:46:00
on: 12-07-2012, 17:40:47 :
will have a final bitsteam update next week(i hope). and completely change the architecture.
please wait for that before do any optimization effort.
Its only been 14 days since that announcement, I think we can hold off on the ropes and pitchforks for a bit
kind regards
So certainly no reason to be impatient ...
July 25, 2012, 11:12:39 AM
No pitchforks here, I'm not upset! Just excited and interested in hearing how everything turned out. This has an application for present Icarus boards if I'm understanding what he's saying about the bitstream correctly.
July 25, 2012, 10:47:28 AM
Update? ngzhang?
From his profile :
Last Active: 23-07-2012, 22:07:55
Last Post: 15-07-2012, 00:46:00
on: 12-07-2012, 17:40:47 :
will have a final bitsteam update next week(i hope). and completely change the architecture.
please wait for that before do any optimization effort.
Its only been 14 days since that announcement, I think we can hold off on the ropes and pitchforks for a bit
kind regards
July 25, 2012, 10:38:18 AM
Update? ngzhang?
July 20, 2012, 02:18:17 PM
I'd be interested in purchasing one if/when these are ready.
July 19, 2012, 08:41:46 PM
7/17 has come and passed. I'm interested to hear about the first production run.
July 14, 2012, 08:05:33 PM
At a guess? - the other boards using (or trying to use) the Icarus bitstream? 
smart
like yohan´s Quad XC6SLX150 ... so it means that only will work for Icarus board...Nice!
July 14, 2012, 02:17:13 PM
So when will the new bitstream be available for Icarus?
July 14, 2012, 09:46:00 AM
At a guess? - the other boards using (or trying to use) the Icarus bitstream?
smart
July 14, 2012, 07:11:26 AM
At a guess? - the other boards using (or trying to use) the Icarus bitstream?
July 14, 2012, 06:51:55 AM
The answer is a big YES.
But only for MY Icarus customers.
But only for MY Icarus customers.
What does this mean? Who are the customers that are not yours? I'm confused. I was part of the last "group order" and that was handled by Xiangfu by your choice. I really hope you consider me your customer
July 14, 2012, 02:53:49 AM
But only for MY Icarus customers.
Are icarus users that didnt buy directly from you excluded? If so, thats a pity.
The answer is a big YES.
I probably should have specified in my previous post that Its doubtful that the bitstream will do 550MH/s on icarus, not that it wouldnt work on icarus (which you have already confirmed that it would)
kind regards
July 14, 2012, 12:03:22 AM
Is the 550 MH/s bitstream compatible with Icarus?
Im going to go out on a limb here and say a big NO.
550MH/s on icarus would require a 275 on what was a 190 clock device. Ngzhang already said that 200mhz was not recommended.
Unless there is some other wigery going on that increases hashrate efficiency greatly without clock increases.
kind regards
The answer is a big YES.
But only for MY Icarus customers.
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