Search found 1118 matches

by BarsMonster
Wed Jun 15, 2011 12:23 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

I just realized how to describe my feeling about bitcoin: It's like you came to party 3 hours late when all pretty girls are already occupied... :crazy: And your options are choose from what is left or go home. :sad: I should have noticed that way way earlier, that would have been perfect answer to ...
by BarsMonster
Tue Jun 14, 2011 2:03 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

Thinking about creating my own miner with my own pool - does it have any sence at this point?
Wonder why everyone use same protocol? Using custom one might have lots of benefit (for example much better DDOS protection)
by BarsMonster
Tue Jun 14, 2011 1:06 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

2.8 GHash/sec finally up and running...
But I am sad. :sad:
by BarsMonster
Fri Jun 10, 2011 3:17 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

mrb wrote:Yep :) I have been mining since December 2010; currently doing 20+ Ghash/s.
You must be rich as sh%t by now. I am officially jealous :crazy:
by BarsMonster
Thu Jun 09, 2011 11:29 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

Guys from shop called and said that they have only 1 6950 left... Damn, I've bought all their 6990 and all reference 6950 :crazy: The only good piece of news is that they should deliver it in some 8-10 hours from now :-D This summer would be much harder than I've thought... Even heat of 1 6950 is ki...
by BarsMonster
Thu Jun 09, 2011 7:15 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

A bit scared... Even current 1.4KW consumption causes drop of wall voltage to 210 from 220... Working at 3KW might burn all the wires... More work than I expected...
by BarsMonster
Thu Jun 09, 2011 3:58 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

This sounds interesting? How much money can you make with this? At this moment, optimal hardware pays for itself in 1 month :-) In the long term profit will fall, approaching total electricity bill (so guys in Germany are not lucky) Also, some might think current bitcoin exchange rate is speculativ...
by BarsMonster
Thu Jun 09, 2011 3:57 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

You right about 20'000 6870. But there are a tiny problem: It's 5'000'000$ in hardware and 5MW of electricity. It's a big deal. While government could do that, this would require quite a nice budget which would need approvals and time, nobody can just spent 5M$ in 1 week just on his will :-) Custom ...
by BarsMonster
Wed Jun 08, 2011 7:04 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Re: Anyone doing bitcoin mining?

Hehe, it appeared that I've grabbed last 3 of 6990's from one of largest Moscow stores :crazy:
by BarsMonster
Wed Jun 08, 2011 2:20 pm
Forum: General Talk
Topic: need some help to crack 3 hashes
Replies: 1
Views: 4971

Re: need some help to crack 3 hashes

We are not cracking hashes for money (and free), sorry, we are writing software.
by BarsMonster
Wed Jun 08, 2011 11:32 am
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: Anyone doing bitcoin mining?
Replies: 18
Views: 25394

Anyone doing bitcoin mining?

Just ordered hardware for my mining boxes:
1: 2x6950 unlocked
2: 2x6990
3: 1x6990 1x6950 unlocked

Should arrive tomorrow, should show some 3200-3250 MHash/sec combined :crazy:
With conditioning it should eat like 2kW of electricity 24*7 (1500 kWh/month) :str:
by BarsMonster
Thu May 26, 2011 9:00 pm
Forum: BarsWF, Cryptography, Security, GPGPU and supercomputing
Topic: New brook beta
Replies: 11
Views: 18422

Re: New brook beta

Retired_raver wrote:i can not get my 2 4850 cards to work with 0.9b version work.....it does not find passes...i tried simple like 1234 and it goes to more digits and continious working...any idea?
Must be driver issues, and as brook is abandoned for quite a while this problem will rest in piece...
by BarsMonster
Thu May 26, 2011 8:58 pm
Forum: BarsWF, криптография, безопасность, GPGPU и суперкомпьютеры
Topic: Не получается с brook+
Replies: 1
Views: 6646

Re: Не получается с brook+

Уважаемый Михаил! Я хотел попробовать работать с ATI Stream технологией. Установил драйвера, SDK, Brook+ 1.4.1. Взял простой пример из Brook+_Programming_Guide, где ядро делает с=a+b. Записал пример как .br файл ( весь пример одним файлом, т.е. как ядро так и main), запустил компилятор brcc.exe -o ...
by BarsMonster
Thu May 26, 2011 8:10 pm
Forum: Обо всем
Topic: Хабр
Replies: 42
Views: 62754

Re: Хабр

Очень нужен инвайт. Я - разработчик. Но собственных работающих проектов пока нет. Главная причина надобности - иногда очень нужно задать вопрос в q&a. ну и конечно читать закрытые блоги хабра. Написал статью - обзор интернет-сервиса, но её в песочницу не приняли. Наверное потому, что туда обзоры не...
by BarsMonster
Sun May 08, 2011 10:51 pm
Forum: Semiconductor brainstorm section
Topic: Problem: easier metallization
Replies: 3
Views: 14404

Re: Problem: easier metallization

Doh, they don't stop killing me:
Common chemical elements that produce deep-level defects in silicon include iron, nickel, copper, gold, and silver. In general, transition metals produce this effect, while light metals such as aluminium do not.
So, it seems that all my hopes are gone. Aluminium.
by BarsMonster
Thu May 05, 2011 1:44 pm
Forum: Обо всем
Topic: Хабр
Replies: 42
Views: 62754

Re: Хабр

uku wrote:Эх, а еще инвайтика не найдётся? :crazy:
К сожалению нет, я пока даже должен 1 инвайт остался... :sad:
by BarsMonster
Thu May 05, 2011 1:26 am
Forum: Semiconductor brainstorm section
Topic: Data needed: sample ASIC designs for 1-2 metals
Replies: 1
Views: 11796

Re: Data needed: sample ASIC designs for 1-2 metals

Hehe, found nice design :-)

http://www.4004.com/

All masks are available, 1 metal 1 poly.
It might be tough to do it without poly (i.e. 2 metal no poly).

There is also 6502 ripped pretty well, but it also uses depletion transistors.
by BarsMonster
Wed May 04, 2011 3:24 am
Forum: Semiconductor brainstorm section
Topic: Re: Learning ASIC design
Replies: 3
Views: 15441

Re: Learning ASIC design

Thanks for detailed plan, looks awesome, starting on my side now. Meanwhile, leaving 2 links I've found while reading about standard cell libs http://www.vlsitechnology.org/ - awesome article about performance vs cell size library (http://www.vlsitechnology.org/html/cell_choice2.html) http://www.vls...
by BarsMonster
Wed May 04, 2011 2:34 am
Forum: Semiconductor brainstorm section
Topic: Problem: easier metallization
Replies: 3
Views: 14404

Re: Problem: easier metallization

You should definitely chose Alu option. Copper metallization is a bad choice, as it has high diffusion rate through silicon and oxide. This can result in p-n junction poisoning and shorts from electrochemical migration. There are other contras also. Yes, Al seems to be the most studied and reliable...
by BarsMonster
Sun May 01, 2011 2:16 am
Forum: Semiconductor brainstorm section
Topic: For sponsors & labs
Replies: 0
Views: 10905

For sponsors & labs

Sponsorship : While I definitely could use some extra help and show a shiny logo like "Sponsored by XXX" in the article after project completion, there are quite limited ways: 1) Access to your lab - it would be awesome to be able to come for a week(hehe, 24x7 marathon. country does not matter) and...
by BarsMonster
Sun May 01, 2011 12:37 am
Forum: Semiconductor brainstorm section
Topic: FAQ & General chit-chat
Replies: 0
Views: 10552

FAQ & General chit-chat

Feel free to post any questions. FAQ 1) Why aren't there such subForum in Russian section? Почему нет такого-же форума в Русской секции? I suppose that anyone who can contribute here know English anyway and it's beneficial to have all discussions in 1 place. If it's not the case - feel free to write...
by BarsMonster
Sun May 01, 2011 12:28 am
Forum: Semiconductor brainstorm section
Topic: Quick start & current status
Replies: 1
Views: 6829

Re: Quick start & current status

Here are the photos of silicon stuff I've got:

Image
Image
Image
by BarsMonster
Sun May 01, 2011 12:22 am
Forum: Semiconductor brainstorm section
Topic: Looking for people to talk: Manufacturing
Replies: 0
Views: 10679

Looking for people to talk: Manufacturing

Looking for people who can talk about ASIC manufacturing - I've just never seen anyone yet :-) Just want to better understand how it works and why certain things done is certain way, and most importantly contamination impact (how does dirty air & chemicals affect ASICs). Also, have some questions ab...
by BarsMonster
Sun May 01, 2011 12:09 am
Forum: Semiconductor brainstorm section
Topic: Data needed: sample ASIC designs for 1-2 metals
Replies: 1
Views: 11796

Data needed: sample ASIC designs for 1-2 metals

After trying first few transistors, sample ASIC schematics would be needed to tune the process. It's important to be sure that these test designs already work in silicon, instead of trying to design or synthesize them from scratch just for testing. They should be low-tech (not smaller than 0.5um) an...
by BarsMonster
Sat Apr 30, 2011 6:52 pm
Forum: Semiconductor brainstorm section
Topic: Data needed: proceses descriptions,libraries,models, 0.5um+
Replies: 1
Views: 11412

Data needed: proceses descriptions,libraries,models, 0.5um+

Basically, manufacturers and companies like MOSIS are not going to give out any process info, and especially component libraries for individuals like me, who are not going to make any orders from them. Main interest is in: 1) Component libraries (digital mainly). I know these are the most restricted...