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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3011575 times)
The Avenger
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November 16, 2013, 03:02:50 PM
 #21901

15? The range seems to indicate a max val of 10, no?

 Cheesy you're totally right.

just looked up what the mentioned value was and then I though let's add the line from the documentation
should have read my own post before sending it  Undecided

So I tried messing with the queue setting in cgminer. Set my miner to solo mine btc.

What happens is all the other backup pools kick in and get some of the work. I get quite a few "pool is not providing work fast enough" errors.

I tried difficulty of 10, 15, 40, 75, 90. Higher numbers seemed to get less "fast enough" errors, but it's seems to farm out more work to failover pools.

Probably would need to run everything a lot longer to see how the values settle over time, but don't want to waste good hashing time experimenting Smiley
But the fact it was balancing the work with all the backup pools means it isn't strictly solo mining and it doesn't seem to be able to keep up.

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Every time a block is mined, a certain amount of BTC (called the subsidy) is created out of thin air and given to the miner. The subsidy halves every four years and will reach 0 in about 130 years.
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November 16, 2013, 03:13:46 PM
 #21902

3 boards normally 420+, was the 3  board norm... this was around 280's, with almost nothing but errors & disablecores showing on cgminer...quick-scroll style...so most likely one asic board...


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xyzzy099
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November 16, 2013, 03:14:45 PM
 #21903

15? The range seems to indicate a max val of 10, no?

 Cheesy you're totally right.

just looked up what the mentioned value was and then I though let's add the line from the documentation
should have read my own post before sending it  Undecided

So I tried messing with the queue setting in cgminer. Set my miner to solo mine btc.

What happens is all the other backup pools kick in and get some of the work. I get quite a few "pool is not providing work fast enough" errors.

I tried difficulty of 10, 15, 40, 75, 90. Higher numbers seemed to get less "fast enough" errors, but it's seems to farm out more work to failover pools.

Probably would need to run everything a lot longer to see how the values settle over time, but don't want to waste good hashing time experimenting Smiley
But the fact it was balancing the work with all the backup pools means it isn't strictly solo mining and it doesn't seem to be able to keep up.

No matter how big you make your queue, it will always overrun it eventually if you are using getwork with an ASIC miner.  Getwork is simply not fast enough to keep up, and that is one of the main reasons why stratum was invented.  If you are mining with ASICs, you have to use either GBT or stratum.

If you want to use stratum, you will have to set up a stratum pool with yourself as the only miner, which is a major pain.  BFGMiner is the only simple solution I know of, since it explicitly solves the problem by using GBT directly to bitcoind/bitcoin-qt.  Read the 'Solo Mining' section in the BFGMiner readme to learn more.


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November 16, 2013, 03:25:47 PM
 #21904

I thought getwork-based solo mining didn't work well or at all anymore, and that you needed a stratum proxy of some kind to achieve reasonable efficiency, especially with a large amount of hashpower.
I solo mined alts for 10 minutes one day as an experiment and kept getting "pool is not providing work fast enough" error.

No idea if the same goes for btc solo mining.

Would be interested if anyone has set up stratum proxy for solo mining and how they did it.

I'm pretty sure you need a stratum pool, not a proxy for solo mining:
https://bitcointalk.org/index.php?topic=162788.0

When I was solo mining TRC with an avalon I set up eloipool to sit in the middle.  I followed jgarzik's guide: https://bitcointalk.org/index.php?topic=158105.0

To mine on a network other than Bitcoin mainnet I had to change some "magic numbers" in the eloipool config: https://bitcointalk.org/index.php?topic=162765.msg1711931#msg1711931

I tried to use the same setup for solo-mining PPC, but it didn't work for some reason.  I guess something is a little too different about it.

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November 16, 2013, 03:39:03 PM
 #21905

New cgminer binary based on cgminer 3.8.2 up

http://ck.kolivas.org/apps/cgminer/kncminer/cgminer

Note that we may have tracked down at least one of the causes of the memory leak that leads to cgminer being killed for being out of memory and it involves frequently using the API. This means that if you are not actively monitoring its performance on the web interface, you are better off closing the web interface window for it to not repeatedly keep using it.

how can we put the cgminer into the system?

thx a lot

wget http://ck.kolivas.org/apps/cgminer/kncminer/cgminer
chmod +x cgminer
mv cgminer /usr/bin/
/etc/init.d/cgminer.sh restart
screen -rx
Bogart
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November 16, 2013, 03:50:00 PM
 #21906

New cgminer binary based on cgminer 3.8.2 up

http://ck.kolivas.org/apps/cgminer/kncminer/cgminer

ckolivas, can you outline the procedure for building a new cgminer binary for a KnC BBB from the source?

Last night I tried building one on my regular BBB running Angstrom.  It ran fine on the build host, but would not run on the KnC BBB, saying "file not found".  I think some of the libraries may be different.  Maybe I need to statically link them?

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November 16, 2013, 03:51:27 PM
 #21907

New cgminer binary based on cgminer 3.8.2 up

http://ck.kolivas.org/apps/cgminer/kncminer/cgminer

Note that we may have tracked down at least one of the causes of the memory leak that leads to cgminer being killed for being out of memory and it involves frequently using the API. This means that if you are not actively monitoring its performance on the web interface, you are better off closing the web interface window for it to not repeatedly keep using it.

how can we put the cgminer into the system?

thx a lot

wget http://ck.kolivas.org/apps/cgminer/kncminer/cgminer
chmod +x cgminer
mv cgminer /usr/bin/
/etc/init.d/cgminer.sh restart
screen -rx

make a backup copy of the original cgminer, just in case

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Phoenix1969
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November 16, 2013, 04:05:38 PM
 #21908

New cgminer binary based on cgminer 3.8.2 up

http://ck.kolivas.org/apps/cgminer/kncminer/cgminer

ckolivas, can you outline the procedure for building a new cgminer binary for a KnC BBB from the source?

Last night I tried building one on my regular BBB running Angstrom.  It ran fine on the build host, but would not run on the KnC BBB, saying "file not found".  I think some of the libraries may be different.  Maybe I need to statically link them?


Here...


I've just created a kncminer branch on my github and have imported their most current code and built my first binary for this. It is not a full firmware and the only thing users may note is the hashrate won't lie with this one, as it won't count hardware errors as hashrate. Also my hardware error count is significantly lower with this on the Saturn dev machine I was sent.

Here's a direct link to the binary:
http://ck.kolivas.org/apps/cgminer/kncminer/cgminer

You'll have to ssh into the kncminer and copy and use that file directly. Hopefully the libraries all match between my dev environment and the default kncminer operating system which means the binary should just work if you run it like on any other OS.
I'm still learning linux, but would love to try this... 
I'll let someone post a clear procedure before I try... ug.Thank you cklovas!

I second this.
ssh into your kncminer if you know its IP address is 192.168.1.X:

Code:
ssh -l root 192.168.1.X
screen -d -r
q
wget http://ck.kolivas.org/apps/cgminer/kncminer/cgminer
chmod +x cgminer
./cgminer -c /config/cgminer.conf
q is to quit the already running cgminer



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vesperwillow
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November 16, 2013, 04:31:49 PM
 #21909

For those asking:

Here's a screenshot from a little bit ago, the chip is running at 56.5*C



I've seen it spike a few times into the low 200 range, after a few spikes over 200 it kills my putty session, but it's still mining and I can re-ssh into it without issue.

The high and averages have gone up 10GH for me with .99 firmware.

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November 16, 2013, 04:34:46 PM
 #21910

@Phoenix1969: Thanks, but I'm asking about building a new binary from the source, not installing a built binary onto the miner.

"All safe deposit boxes in banks or financial institutions have been sealed... and may only be opened in the presence of an agent of the I.R.S." - President F.D. Roosevelt, 1933
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November 16, 2013, 04:41:54 PM
 #21911

@KNC or @Bitcoinorama: Does this delay also apply to the upgrade modules? Will the shipping of the upgrade modules begin with, before or after shipping of regular november orders?

Guy's I'll be honest and say. If you have a November batch and want to take full advantage, I'd be sourcing 1200w PSUs.

I'd still avoid the Cosair HX Series. You'd prob be fine with a solid 1000w+.

We've been testing on the V850s still, but as I alluded to before they've been pushing these around and over 1000w and the PSUs are solid and have been taking the abuse, but if I were you with future firmware revisions and from what I've seen: 1200w Gold rated PSUs for November batch orders FTW please! Wink

Hey, could you please elaborate on your reasoning, and also evaluate this power supply? Is your recommendation based on cost savings? Or is it necessary due to technical limitations?

http://www.amazon.com/gp/product/B003J89V0A/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1

I originally planned on using this, because I have it around. However, after reading some comments here, I'm thinking of purchasing a new kill-a-watt (old one broke) and a gold rated power supply per recommendations.
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November 16, 2013, 04:47:09 PM
 #21912

@KNC or @Bitcoinorama: Does this delay also apply to the upgrade modules? Will the shipping of the upgrade modules begin with, before or after shipping of regular november orders?

Guy's I'll be honest and say. If you have a November batch and want to take full advantage, I'd be sourcing 1200w PSUs.

I'd still avoid the Cosair HX Series. You'd prob be fine with a solid 1000w+.

We've been testing on the V850s still, but as I alluded to before they've been pushing these around and over 1000w and the PSUs are solid and have been taking the abuse, but if I were you with future firmware revisions and from what I've seen: 1200w Gold rated PSUs for November batch orders FTW please! Wink

Hey, could you please elaborate on your reasoning, and also evaluate this power supply? Is your recommendation based on cost savings? Or is it necessary due to technical limitations?

http://www.amazon.com/gp/product/B003J89V0A/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1

I originally planned on using this, because I have it around. However, after reading some comments here, I'm thinking of purchasing a new kill-a-watt (old one broke) and a gold rated power supply per recommendations.

He is recommending 1200w PSU or solid 1000w. Yours is Bronze 1000w.

iCEBREAKER is a troll! He and cypherdoc helped HashFast scam 50 Million $ from its customers !
H/w Hosting Directory & Reputation - https://bitcointalk.org/index.php?topic=622998.0
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November 16, 2013, 04:51:14 PM
 #21913

@KNC or @Bitcoinorama: Does this delay also apply to the upgrade modules? Will the shipping of the upgrade modules begin with, before or after shipping of regular november orders?

Guy's I'll be honest and say. If you have a November batch and want to take full advantage, I'd be sourcing 1200w PSUs.

I'd still avoid the Cosair HX Series. You'd prob be fine with a solid 1000w+.

We've been testing on the V850s still, but as I alluded to before they've been pushing these around and over 1000w and the PSUs are solid and have been taking the abuse, but if I were you with future firmware revisions and from what I've seen: 1200w Gold rated PSUs for November batch orders FTW please! Wink

Hey, could you please elaborate on your reasoning, and also evaluate this power supply? Is your recommendation based on cost savings? Or is it necessary due to technical limitations?

http://www.amazon.com/gp/product/B003J89V0A/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1

I originally planned on using this, because I have it around. However, after reading some comments here, I'm thinking of purchasing a new kill-a-watt (old one broke) and a gold rated power supply per recommendations.

He is recommending 1200w PSU or solid 1000w. Yours is Bronze 1000w.

Congratulations on regurgitating verbatim. Also, "solid" isn't a rating, so he is probably recommending Gold. I'm curious what his thoughts are as he seems to know what he is doing. I too know a little bit about what I'm doing, otherwise I wouldn't be going under KNC recommended specs.
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November 16, 2013, 05:01:58 PM
 #21914

@KNC or @Bitcoinorama: Does this delay also apply to the upgrade modules? Will the shipping of the upgrade modules begin with, before or after shipping of regular november orders?

Guy's I'll be honest and say. If you have a November batch and want to take full advantage, I'd be sourcing 1200w PSUs.

I'd still avoid the Cosair HX Series. You'd prob be fine with a solid 1000w+.

We've been testing on the V850s still, but as I alluded to before they've been pushing these around and over 1000w and the PSUs are solid and have been taking the abuse, but if I were you with future firmware revisions and from what I've seen: 1200w Gold rated PSUs for November batch orders FTW please! Wink

Hey, could you please elaborate on your reasoning, and also evaluate this power supply? Is your recommendation based on cost savings? Or is it necessary due to technical limitations?

http://www.amazon.com/gp/product/B003J89V0A/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1

I originally planned on using this, because I have it around. However, after reading some comments here, I'm thinking of purchasing a new kill-a-watt (old one broke) and a gold rated power supply per recommendations.

Firstly to finish addressing the original post. There is no delay on the upgrades they are shipping Monday. Everybody at the same time. That's been deemed the fairest option for all, except Marcus who had suddenly discovered the oversell and freaked out as he had to ensure enough components were available.

The PSU is due to the fact the November batch will be somewhat more hungry. We've improved the PCB layout, and changed a few components, and are pushing the chip harder.

October shipment was always about speed to market. As the units were finalised the day after delivery and the fact KnC had to play devils advocate and assume someone else, may have a greater effect on the hashrate sooner as other products were apparently planned for delivery, it was deemed more crucial that the first shipment was in the hands of customers sooner, rather than later.

That said certain team members have been allocated to improving the design based upon issues that arose and feedback received, also some of the margins could be removed as confidence with the chip has increased.

These machines also run a little hotter, so bare that in mind. Nothing for you to worry about w.r.t. to product cooling, those heatsinks are finally being warmed up a little, and if you live in a cooler climate this winter, say in Scandinavia Wink, i'm sure you'll be grateful, but it's something to consider, these chips are being pushed, so expect heat as a by product and perhaps a little more noise as auxiliary components have to work a little more.

That said we are still using Coolermaster V850s and none have yet died, and they have been pushed past 1000w, they do tend to wake up and provide a more vocal ambient fan noise, but I wouldn't bet on them being a long term solution, so something beefier would be advise. Stick to 80+ Gold. Can't say 1000w is sufficient as i've seen machines goto 1050w, and i cannot predict what else the software engineers have in mind for the hardware. As such I cannot officially say anything other than you need a PSU greater than 1000W, which takes you into 1200W territory. Go for what you know, but again cannot recommend the Corsair HX series, and unfortunately there is no time to check every PSU on the market, unless you don't mind waiting a few more months, which I doubt, as minutes appears to be beyond the realms of reasonable delay here...

I'd be inclined to go with;

http://www.coolermaster.com/product/Detail/powersupply/silent-pro-gold/silent-pro-gold-1200w.html

KnC I believe will be using 2 x v850s for the hosting guys, for sure because the boards are modular you have that option of powering the machine with 2 PSUs.

Hope that helps.

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November 16, 2013, 05:09:44 PM
 #21915

@KNC or @Bitcoinorama: Does this delay also apply to the upgrade modules? Will the shipping of the upgrade modules begin with, before or after shipping of regular november orders?

Guy's I'll be honest and say. If you have a November batch and want to take full advantage, I'd be sourcing 1200w PSUs.

I'd still avoid the Cosair HX Series. You'd prob be fine with a solid 1000w+.

We've been testing on the V850s still, but as I alluded to before they've been pushing these around and over 1000w and the PSUs are solid and have been taking the abuse, but if I were you with future firmware revisions and from what I've seen: 1200w Gold rated PSUs for November batch orders FTW please! Wink

Hey, could you please elaborate on your reasoning, and also evaluate this power supply? Is your recommendation based on cost savings? Or is it necessary due to technical limitations?

http://www.amazon.com/gp/product/B003J89V0A/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1

I originally planned on using this, because I have it around. However, after reading some comments here, I'm thinking of purchasing a new kill-a-watt (old one broke) and a gold rated power supply per recommendations.

Firstly to finish addressing the original post. There is no delay on the upgrades they are shipping Monday. Everybody at the same time. That's been deemed the fairest option for all, except Marcus who had suddenly discovered the oversell and freaked out as he had to ensure enough components were available.

The PSU is due to the fact the November batch will be somewhat more hungry. We've improved the PCB layout, and changed a few components, and are pushing the chip harder.

October shipment was always about speed to market. As the units were finalised the day after delivery and the fact KnC had to play devils advocate and assume someone else, may have a greater effect on the hashrate sooner as other products were apparently planned for delivery, it was deemed more crucial that the first shipment was in the hands of customers sooner, rather than later.

That said certain team members have been allocated to improving the design based upon issues that arose and feedback received, also some of the margins could be removed as confidence with the chip has increased.

These machines also run a little hotter, so bare that in mind. Nothing for you to worry about w.r.t. to product cooling, those heatsinks are finally being warmed up a little, and if you live in a cooler climate this winter, say in Scandinavia Wink, i'm sure you'll be grateful, but it's something to consider, these chips are being pushed, so expect heat as a by product and perhaps a little more noise as auxiliary components have to work a little more.

That said we are still using Coolermaster V850s and none have yet died, and they have been pushed past 1000w, they do tend to wake up and provide a more vocal ambient fan noise, but I wouldn't bet on them being a long term solution, so something beefier would be advise. Stick to 80+ Gold. Can't say 1000w is sufficient as i've seen machines goto 1050w, and i cannot predict what else the software engineers have in mind for the hardware. As such I cannot officially say anything other than you need a PSU greater than 1000W, which takes you into 1200W territory. Go for what you know, but again cannot recommend the Corsair HX series, and unfortunately there is no time to check every PSU on the market, unless you don't mind waiting a few more months, which I doubt, as minutes appears to be beyond the realms of reasonable delay here...

I'd be inclined to go with;

http://www.coolermaster.com/product/Detail/powersupply/silent-pro-gold/silent-pro-gold-1200w.html

KnC I believe will be using 2 x v850s for the hosting guys, for sure because the boards are modular you have that option of powering the machine with 2 PSUs.

Hope that helps.
A good solution for the PSU should be the EVGA G2 1300w, I think it still on sale on newegg for sub 200, and is 1300w gold rated PSU.
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November 16, 2013, 05:12:48 PM
 #21916

cannot recommend the Corsair HX series

Why is that?

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November 16, 2013, 05:25:29 PM
 #21917

because the corsair series hx
and not series ax
is awful psu
a lots of problmes
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November 16, 2013, 05:25:59 PM
 #21918

best i think is

corsair ax1200i
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November 16, 2013, 05:28:37 PM
 #21919


There is no delay on the upgrades they are shipping Monday. Everybody at the same time. That's been deemed the fairest option for all, except Marcus who had suddenly discovered the oversell and freaked out as he had to ensure enough components were available.

These sound like 2 separate events, one following the other: originally KNC deemed the fairest option for all to send all upgrades on Monday and then Marcus suddenly discovered the oversell and freaked out as he had to ensure enough components were available. And because time travel hasn't really been invented yet it looks like the decision to ship everything on Monday was made before Marcus sudden discovery, therefore before the sale even began.
Do I understand correct?


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November 16, 2013, 05:29:15 PM
 #21920

because the corsair series hx
and not series ax
is awful psu
a lots of problmes

Please ignore this comment, as the owner have no idea what he is talking about.

If this post helped you and you feel generous you know what to do: 1P9tXFy9bVgzrfPGeV7F8np26ZtFdCCWvz
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