Q: How many surrealists does it take to change a light bulb?

A: Two, one to hold the giraffe, and the other to fill the bathtub with brightly colored Jell-o.

Fifty-three stations of the Tokaido, Fifty-two Weeks of Turning Ordinary Ingredients into Extraordinary Moments, fifty-one floors in the Savage Labyrinth, fifty-cent beer is a regular Friday crowd booster, forty-nine steel orchestras took to the stage, forty-eight-year-old Whitney Houston passed away, forty-eight steel balls, to be exact, forty-seven percent of Americans don't pay any income taxes, Super Bowl XLVI halftime show featured Madonna, forty-five percent of women do not eat enough protein, fourty-four Dead Clowns, 43% of current difficulty, forty-two art handlers in New York City were locked out of their jobs without paychecks by Sotheby’s international auction house, forty-one new "legal drugs" were identified, forties for my dead homies, thirty-nine coffee tables, thirty-eight climate scientists, 37signals, Thirty-Six Views of the Eiffel Tower, 35 empty jugs of moonshine, thirty-four rooftop spa pavilions, thirty-three great ideas on Twunker, thirty-two light fixtures on Main Street were replaced with LED, thirty-one years after the death of John Lennon, thirty pointless threads, twenty-nine opened 100 BTC Casascius Bars, twenty-eight players made the short weekly trip to Pattaya Country Club, twenty-seven nine mil rounds sent down the firing range, twenty-six minus nine times I had to fix this list, 25 Hours, 2 hours and 50 minutes (total time logged in), two dozen Casascius Bitnickels, twenty-three great reasons to subscribe to Bitcoin Magazine, twenty-two papers on statistics and probability, twenty-one birthday shots, twenty plus one two three ? BitcoinTalk user names, nineteen bitcoin miners, 18% total interest on principal for 60D multi-pay Bitcoin loans, seventeen newly hatched Sea-Monkeys performing swan dives into a toilet bowl, sixteen farting fairies, fifteen Aztec poets, fourteen days of Christmas, thirteen floors of terror, 12-pack of Pepsi, Eleven 7-11's, ten gram chee-burger, nine blown circuit breakers, eight buckets of gone-bad-blubber, seven fathoms of water, six 5770 GPU's, five double cheeseburgers, 4.5-billion-year-old-planet, 3.14159265 BTC registered in the Blockchain, two curious albino alpacas and one bent tuba.

Fifty-four ?,...

All one has to do is pen a partial sentence that starts with the next number available. Example: Fifty-four turbine powered Tauruses,

Spots reserved: (get on the list)

• Fifty-seven could be Heinz 57 or 57 variety related
• Sixty-nine ? reserved for BitcoinPorn (coming soon, I'm sure)
• Five hundred seventy-five posts by Satoshi Nakamoto,...

All numbers are available, albeit any number over ten thousand requires a 1 BTC donation to 1BTC1oo1J3MEt5SFj74ZBcF2Mk97Aah4ac to be included on the list.

Forty-eight, in memory of:

Fifty one floors in the Savage Labyrinth, Fifty-cent beer is a regular Friday crowd booster, forty-nine steel orchestras took to the stage, forty-eight-year-old Whitney Houston passed away, forty-eight steel balls, to be exact, forty-seven percent of Americans don't pay any income taxes, Super Bowl XLVI halftime show featured Madonna, forty-five percent of women do not eat enough protein, fourty-four Dead Clowns, 43% of current difficulty, forty-two art handlers in New York City were locked out of their jobs without paychecks by Sotheby’s international auction house, forty-one new "legal drugs" were identified, forties for my dead homies, thirty-nine coffee tables, thirty-eight climate scientists, 37signals, Thirty-Six Views of the Eiffel Tower, 35 empty jugs of moonshine, thirty-four rooftop spa pavilions, thirty-three great ideas on Twunker, thirty-two light fixtures on Main Street were replaced with LED, thirty-one years after the death of John Lennon, thirty pointless threads, twenty-nine opened 100 BTC Casascius Bars, twenty-eight players made the short weekly trip to Pattaya Country Club, twenty-seven nine mil rounds sent down the firing range, twenty-six minus nine times I had to fix this list, 25 Hours, 2 hours and 50 minutes (total time logged in), two dozen Casascius Bitnickels, twenty-three great reasons to subscribe to Bitcoin Magazine, twenty-two papers on statistics and probability, twenty-one birthday shots, twenty plus one two three ? BitcoinTalk user names, nineteen bitcoin miners, 18% total interest on principal for 60D multi-pay Bitcoin loans, seventeen newly hatched Sea-Monkeys performing swan dives into a toilet bowl, sixteen farting fairies, fifteen Aztec poets, fourteen days of Christmas, thirteen floors of terror, 12-pack of Pepsi, Eleven 7-11's, ten gram chee-burger, nine blown circuit breakers, eight buckets of gone-bad-blubber, seven fathoms of water, six 5770 GPU's, five double cheeseburgers, 4.5-billion-year-old-planet, 3.14159265 BTC registered in the Blockchain, two curious albino alpacas and one bent tuba.

Forty-eight, in memory of:

Nice work!

- Zed

Three (3) please. PM and payment sent.

edit: http://blockexplorer.sytes.net/b/133CJfXuMw

- Zed

Thanks for the new version.

I just loaded it onto my Mac Mini Core i5 2.3 GHz, seems to be about the same as the version from 3-January. I'm seeing 13.5 kH/s - 14.10 kH/s.

- Zed

5BTC

022

Translation:

All Your Coin are Belong to Us

I hate when I do stuff like that. I left off a critical three letters. Memory is not so good when it's late.

- Zed

I built pooler's code on my PowerMac G5 (PowerMac9,1 ppc970fx, 1.8 GHz) running Ubuntu 11.10 and achieved ~1.45 kH/s. ssvb's code on the same machine provides ~3.10-3.25 kH/s.

I used CFLAGS="-O3 -mcpu=G5 -mtune=G5 -maltivec -fstrict-alias" when I built both.

- Zed

After messing around with Ubuntu 11.10 that didn't seem to like the nVidia graphics card, even when not using KMS (booting with "nouveau.modestate=0"), I finally just installed a CLI version, booted with "nouveau.modestate=0" and all is well. I installed the "missing" libraries and gcc, and built cpuminer.

I'm seeing ~3.10 - 3.25 kH/s now. This is about equivalent to one thread on my 2.3 GHz Core i5 powered Mac Mini.

Edit: Second machine installed and churning out the same as the first.

- Zed

You are both right, re: pooler's optimizations. I was thinking just about the hash rate increases, and not that the optimizations are Intel and now AMD specific. I still have the G5 machines, but have had no time to do anything since I posted that message on 3-Jan. Hopefully I can burn a few cycles this weekend and get the machines running, although the fans on those suckers are fscking loud. Even the two IBM X3650M2s I had running over the holidays weren't as loud as just one of the PowerMac G5s ...

- Zed

OK, makes sense.

I was thinking three identical rings with one input and some selector logic. Each ring would always be fed by the selector, and would always output to the selector. The selector could use:

• In from External (new share)
• In from Internal (from another ring, 1st sha256 complete)
• Out to External (2nd sha256 complete)

The selector would need to know when there is an available ring to route the next share, and whether the share that is being routed has 0, 1, or 2 sha256 operations computed.

But the more I think about this, it really boils down to each ring computes the first hash, then feeds itself that result and computes the hash, which it then reports as complete. So the selector logic would add overhead (delay) and complexity, and provides nothing useful. Right?



Cool. I saw the divot and it makes complete sense.



Sweet!

So if this works out, running at 200MHz would yield ~300 MH/s, right? 150% of the device's operating frquency.

- Zed

Hey Folks,

I have access to a pair of PowerMac G5 machines. I don't know the specific model(s) yet, but I found out that Ubuntu 11.10 will run on them with a little effort.    I'll be trying to install a persistent USB build for them and get them running.

Once I have done that, and installed a few libraries and tools, I'll download and try to build pooler's most up-to-date/optimized miner. If that fails, I'll download an run the one mentioned here.

Cheers,

- Zed

OK, here is an odd-ball request, I thought that I saw a version that was compiled for a PowerPC G5, but now I can't seem to find it. I have access to a couple PowerMac G5s (one MacOS X version unknown) and one with Linux, distro and version unknown.

Edit: Seems Ubuntu 11.10 can run on the PowerPC G5, so I'm going to try to run off a USB key. If I can get them running I'll update this post.

http://ubuntuforums.org/showpost.php?p=11020435&postcount=1

Edit 2: Here is the thread I wanted: https://bitcointalk.org/index.php?topic=55953.0

Any updates after this will be there.

Thanks,

- Zed

I'm actually interested in getting an FPGA miner which is why I'm here. The BFL single seems interesting. The question now is do I wait (and for how long) for BFL, or get one of the existing designs which are actually shipping.

The draw for me is that I do not have any existing hardware that I can permanently use for mining, and at this point in time I'm not inclined to go buy the infrastructure to support GPU mining.

- Zed

I'm new enough to both Bitcoin and FPGA design (I know some folks who design, but do not design myself) this that I'm probably missing something pretty obvious, but is there any benefit of using the first ring to feed the second ring?

Is there any benefit to, or possibility of, moving the blue ring "up" so that the part that jogs up and to the left is in the top left corner? How about rotating the green part such that the part that jogs up and to the left is jogging down and to the right and then located in the lower right corner?

Not knowing the architecture and layout of the target device is driving the second set of questions.

As I said I'm new to FPGA design, but I find it very interesting, and I'm interested in learning. If the questions are "stupid noob" questions, tell me and point me in a direction to go read so I can learn, and I'll go back to lurking. I understand the basic low level components, flip-flops, LUT, logic, etc., but not the FPGA design and layout specifics.

Thanks,

- Zed

Oh my. Now I feel so inferior to you.

- Zed

What is your language of choice for HFT?

- Zed