Woah, Eleuthria must be a really happy man!  Helps take the sting out of the 1250 btc oopsie with the .8 upgrade, I'm sure. |
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It's perhaps an argument that some asic users should chip in to buy Forrestv a device of their preference from someone who already has one in hand to make sure that p2pool supports the devices well.
I've offered Forrest and ckolivas access to my units, hopefully this will be corrected shortly. Ckolivas is going to start working Monday if all goes well. |
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In your config.py did you change ALL the test net values to real values? Check every edit in the OP.
Check your bitcoin.conf and make sure you set rpcallowip to 127.0.0.1 and your LAN IP.
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Just get an Avalon for ckolivas and cgminer will be hashing Avalon on all working pools as quickly as possible.
I don't want an Avalon as I have made clear for quite a while now.
So no, it's not get "cgminer team" an Avalon, it's get "ckolivas" an Avalon.
This is happening next week. If plans go well. And Kano, take what you can get. Just because you have beef with the avalon team, don't screw with everyone else. If anything we need people like you to get the avalons to operate like they should. Instead, we have this half assed build of cgminer because they wanted it all in house. Better to just cut them out and move on. Bitcoin is going to ASIC. BFL may be close, or one post away from bankruptcy. There's no one else. Might as well get your hands on what's out there. |
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I would highly suggest that you keep the testnet setting in the config.py and configure your bitcoind to use testnet and mine a few blocks there to make sure your setup is working before you swap it over to the real network.
That's why testnet exists.
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I've been running p2pool on stratum for about a week with cgminer. I noticed the hash rate just isn't as high as it should be. Not significantly lower (2.4gh instead of 2.6), but still lower. Based on what was revealed about Avalon and stratum, I thought I'd try disabling stratum in cgminer. Guess what, my hash rate is back where it should be. Note that I don't have the hash rate degradation on a "conventional" pool with stratum.
Unfortunately while I can only salivate about the idea of having an Avalon, there does seem to be evidence that stratum isn't functioning up to par on p2pool.
M
THANK YOU! This is a legitimate starting point. This is something that can actually be looked into, do you mind filing an issue: https://github.com/forrestv/p2pool/issues?state=open(I think forrestv does some triage on this forum as well) I've been talking with Forrest via PM. basically it's come down to, we just need to get an avalon into a developers hands. ckolivas has offered to try and work remotely. Forrest has hinted he may be interested and has a batch 2 order he's waiting on. |
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Nice pictures, this confirmes that the design with many small chips and a big passive heatsink was wise. But wouldnt a push-pull work even better ?
Now the positive preasure pushes warm air out of the box, some front fans working pushing air out, would suck in cold air through the holes in the box also ?
for the heatsink units yes, but Dr Zhang says this will cause the powersupply to overheat. guess what i'm going to test soon? |
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Fascinating stuff.
I would change red is wrong, to red is hot!
58 C is high but could be just fine. What matters is Tj the temperature at the transistor junction. This needs to stay below the design temperature or you will have reliability problems in the long term. I'm not sure what TSMC's Tj specification is for their 110 nm process, but it is probably around 75 C.
You can calculate Tj from what you have there with the thermal resistance Rjc and the power being dissapated in the device. JC being junction to case. It should be possible to look up an Rjc value for the heat sink used here.
Clearly there is some room for optimization though.
red means something. Not really sure, lol. It may have been nice to get a manual and some technical documents ( hint Yifu and Dr Zhang ) when BFGminer flash bricked unit one it was red the whole time until i put it in recovery. |
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No idea, I just remember Yifu or Zhang posting at some point about how the casing is designed to be part of the heatsink. And I noticed how well the units clamp down on each other if you stack them. It was obviously intended that way - when you stack several units on top of each other, the outer casing of the stack becomes one giant heatsink.
This is correct, the "bolt" exclusion from top of one unit's case fit directly into the "socket" of another unit's bottom plate. like this  |
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I said I would do this when my units came in. Here they are. This is what they look like sitting on my lab bench. The fans are running. When everything is ok, it's blue. When something is wrong, its red. You can notice that they are notched to allow stacking with each other. A very nice touch. Everyone should have more than one! Thermal Imaging. All temperatures are Celsius. It should be noted that I put the top back on after each image for a while to let the units try to be operated as briefly as possible with the cover removed so as not to skew the results. Here's the same view in IR  Here's the top unit with the cover removed  The next two images are of the card next to the powersupply. The other two cards are hard to images because of how close they are.   Another view from the front with the top removed.  A closeup on the "Hot" part of the 3rd module  A view from the back side of the case looking in.  Here's the money shot. You can see the temperature gradient along the heatsink The front is cool, the back is warmer. The further from the intake the warmer the cards. It's also worth noting that all 3 cards have similar temperatures. Even the 3rd card that's exposed it only slightly hotter in the bottom corner. The 1st card wedged up by the powersupply is also cooled very well.  and lastly, just for fun  This is just a quick review. I'll go much more in depth later. I'm getting ready for some heavy travel shortly. At some point I'd like to do a full tear down and take some xray of the boards, when scheduling and equipment permits. Thanks to team Avalon for the new toys! |
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It looks like there were some order sold ~ 1000 BTC sold not too long ago.
I've got >5000 more plus 4 avalons. I'll be ok. Lol. I thought I read in am Avalon thread that you were a "poor" university researcher... +5.000 + 4 Avalons does not look that poor XD I am. Err was. |
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It looks like there were some order sold ~ 1000 BTC sold not too long ago.
I've got >5000 more plus 4 avalons. I'll be ok. Lol. |
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Seriously, we need to get bitcoin post mtgox. Their shiat exchange really is the limiting factor. If they spent half the time working on the infrastructure as they did ID verification BS they could take down wall street.
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Ha. Sorry guys I cashed out big (at $94)Seriously. Been contemplating it.
Wifey wants an RV.
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has anyone gotten a response from BitSyncom? it's been 2 days and he has not responded to forum PM, email, or tickets.
working as intended i think.... |
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Well someone's gotta do it. Ill see what I can do. I can code and tinker. I just don't like to much. I'm gonna be gone a fair bit of April. So if you want to screw with my units you can but you may have to call one of my techs to hard reset them if you bork one and can't reset it remotely. It's an offer if you are interested in doing it right Ps I've probably given you 50 coins by now, over the past couple years. Keep up the good work. Thanks. With xiangfu currently working on bringing the code into line with mainline cgminer, it would be helpful for me to test on an actual unit, and I have some time next week. However I would not be touching the p2pool software code at all since it is in python and a complete mystery to me. Yes, agreed. I tried today to go looking since I used to program python and perl. God some of that code is nuts. Forrest is a genius or a mad hatter. Lol. It's just too complex for me to dive in and know even where to look. I'm sure if Forrest had an avalon and a few hours he could nail it down. |
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Sounds like the problem is all in the p2pool end anyway? Can you tell if it's actually successfully connecting directly stratum because that would be essential to avoid p2pool sending a lot and higher diffs would be essential to avoid p2pool receiving a lot.
Avalon Cgminer without fix protocol connects on stratum but resends all work over and over. Did you try the avalon branch of p2pool on github? A fix for stratum is there. Yes it's not a fix for stratum. It disables work caching. I get 150mhash with it using stratum. Not exactly ideal. Stratum for avalon on p2pool is terribly broken. I don't know if its p2pool, or cgminer version or a combination of one doing something the other doesn't like. I actually feel like it should be an easy fix since every other stratum pool works fine. So far the only thing that works is using fix-protocol and getwork with a very high diff. I've been using /4000+16. That seems the best balance. +32 is all late. You have to remember the "miners" are only 300mhash each. It will bring a 3930k running Ubuntu with 32gb of ram to its knees. It pegs 4 processors trying to keep up and eventually crashes as it runs out of memory. I also is 25-35% DOA. You loose 1/3 of your hashrate. |
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You all are ruthless...
Chill ,the avalons a prototype, and so is anything it's running. It could be as simple and one fat finger somewhere in the code or build config.
I'm just glad I didn't have to get out a EEPROM burner or hot swap flash chips or something weird.
Luke's the only one actually trying to help getting it doing things I'd like to do.
Everyone else just bitches about how they got left out.
No one is willing to test or brick their units. I don't mind. I'm in it for more than mega BTC. In trying to tinker and make it better. I'd really like to get it working well on p2pool.
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