[GUIDE] GridSeed 5-Chip USB, Blade & Black Miner Support/Tuning

[sandor111]

If you're getting a lower hashrate then normal, try turning off autotune, you aren't supposed to run it too long anyway.

I'm using Rasperian with a web based management interface which use CPUMiner. It has been 3 hrs now and pool side reports a more stable but slightly lower hash rate (8.9Mh/s~11Mh/s). I'm running 10x gridseed USB Miner plus a G-blade (2 instance) with auto-tune mode ON, plus 5x GTX 750 Ti at default speed (Result in a total of around 1.3Mh/s). The hash rate is kind of low isn't it?

BTW, you can run USB + G-Blade on 1 instance.

[csmflynt3]

ok I finally giving up running CPUMiner on Windows 7 and switched to Raspberry pi for some testing. Let's see if it will stop sending shares after a few minutes. So far they're running for 120+ minutes and doing fine. However I noticed a little drop of mining performance reported from pool side. Anyone using Raspberry pi for mining now? It it normal?

+1 to this.  Been running a blade for a few days now with mixed results.  Windows seems to top out at bursts over 4MH but averaging slightly under, nowhere near advertised clock speed.  Put both halves on separate pools to test results to see if it is the unit in question or an individual blade side. 

For RPi, are people using the ZH image, image from another vendor, etc.?  Setting up the ZH image right now so I can test with that.

Out of curiosity, what freq are people finding most reliable?  I've read through this thread a bit and want to try out the jmordica cgminer fork (see people mentioning 838 freq a few times), but all-in-all the hardware just appears to be underperforming right now and I can't quite crack why due to lacking software support.

838 does seem to be best from my experience so far. The auto tune works great on the 5 chips , but did not help me with the blades as much. These blades do not seem to like overclocking as much for some reason, but I do not think it has anything to do with cpuminer

[wolfey2014]

ok I finally giving up running CPUMiner on Windows 7 and switched to Raspberry pi for some testing. Let's see if it will stop sending shares after a few minutes. So far they're running for 120+ minutes and doing fine. However I noticed a little drop of mining performance reported from pool side. Anyone using Raspberry pi for mining now? It it normal?

When you were running on Win7 with cpuminer with latest or earliest version doesn't matter, did you turn OFF FIFO buffers for all comm ports? FIFO buffers ON will cause the problem you were having and may still be having if you are still using the STM virtual comm port drivers. It's stated in several places on this and other threads. Perhaps you missed it?
I understand your frustration. Been there, done that. Hopefully you simply accidentally overlooked something and that caused your problem. It happens.
Good luck!
W

[wolfey2014]

For about 2 weeks, my miners were running on 9600 baud. Ive since upped that to 115200. Made no difference, but Im still using an older cpuminer with one instance each, one worker each.

i'll figure out how to work the new cpuminer, and if not i'll let you guys know.

Please make sure you have FIFO buffers turned OFF in comm port 'advanced' settings.
Having them ON causes problems like drop outs, slows etc.
Good luck!

[sandor111]

The TUI is really basic (as I wrote it from scratch), it has a few bugs I need to iron out before I can push the code.

[wolfey2014]

snip - see above ^^^^

The TUI is really basic (as I wrote it from scratch), it has a few bugs I need to iron out before I can push the code.

NICE! I like it!

[Kokok]

Let me 1st start out by say... I am very new to this so my terminology may not be right, but I am learning and learning fast. That being said...

I have been running the new version of cpuMINER for a few days now and it is working FANTASTIC! I have been using it in 'autotune' mode and have put together  a spreadsheet as to what my individual miner settings seem to settle out to. Is there a way to write a batch file that will configure each chip on each miner so I get the best performance without using the 'autotune' feature.

Example: 

Gridseed #6 (COM26)
6@0:  900
6@1:  825
6@2:  850
6@3:  900
6@4:  900

Thanks in advanced for any and all help.

[sandor111]

Let me 1st start out by say... I am very new to this so my terminology may not be right, but I am learning and learning fast. That being said...

I have been running the new version of cpuMINER for a few days now and it is working FANTASTIC! I have been using it in 'autotune' mode and have put together  a spreadsheet as to what my individual miner settings seem to settle out to. Is there a way to write a batch file that will configure each chip on each miner so I get the best performance without using the 'autotune' feature.

Example:  

Gridseed #6 (COM26)
6@0:  900
6@1:  825
6@2:  850
6@3:  900
6@4:  900

Thanks in advanced for any and all help.

There are more examples at https://github.com/siklon/cpuminer-gc3355/

Code:

minerd --gc3355=\\.\COM26 --url=stratum+tcp://pool:port --userpass=user:pass --gc3355-freq=\\.\COM26:900:0,\\.\COM26:825:1,\\.\COM26:850:2,\\.\COM26:900:3,\\.\COM26:900:4

[csmflynt3]

The TUI is really basic (as I wrote it from scratch), it has a few bugs I need to iron out before I can push the code.

Nice this is all cpuminer is really missing at this point. Hard to tell if all my chips are actually mining without doing a lot of scrolling

[Kokok]

Thanks for the fast reply...

When I tried the script you provided, I am seeing all the cores but... they are all set to 825. I will keep reading the information at the link you provided.

Thanks again for the fast response.

[wolfey2014]

The TUI is really basic (as I wrote it from scratch), it has a few bugs I need to iron out before I can push the code.

Sandor,
is this going to also show, at least as an option, individual chip clocks and allow freq' adjustment thereof?
Am I missing something?
Nice work!

[almond]

Hi all,

Just wanted to report that I have a half dozen GSD's that are now running quite well, thanks largely to the info I've found on this forum, this thread in particular.

Sandor's improvements to cpuminer are welcome, innovative, & stable.  I've been using the autotune to identify the strengths of each unit and find the best speeds.  I'll be writing a long tome-like bat file soon, with the best speeds for each chip.

That is after I volt mod them all.  I also wanted to tip my hat & say thank you to all who have researched, risked, & presented ideas to achieve greater hash rates.  As presented here, I've replaced r52 with a 47k resistor, and done the 5 volt fan mod in two of my seeds; they're running great for 24 hrs. now. I'm at 1175 kh/s with no red lines.

I was going to experiment with bfgminer mainly because of the nicer UI, but now that I see what Sandor is up to,  I'm just going to wait.....this version of cpuminer is the kitteh's meow sets my black heart a flutter......!

It's a joy to participate in this evolution......
thanx again guys.

[sandor111]

Thanks for the fast reply...

When I tried the script you provided, I am seeing all the cores but... they are all set to 825. I will keep reading the information at the link you provided.

Thanks again for the fast response.

Probably you are running an older version of cpuminer, or the COM port isn't 26. The command line works fine for me.
Make sure you have only one

Code:

--gc3355-freq

in your command line.

[wolfey2014]

Hi all,

Just wanted to report that I have a half dozen GSD's that are now running quite well, thanks largely to the info I've found on this forum, this thread in particular.

Sandor's improvements to cpuminer are welcome, innovative, & stable.  I've been using the autotune to identify the strengths of each unit and find the best speeds.  I'll be writing a long tome-like bat file soon, with the best speeds for each chip.

That is after I volt mod them all.  I also wanted to tip my hat & say thank you to all who have researched, risked, & presented ideas to achieve greater hash rates.  As presented here, I've replaced r52 with a 47k resistor, and done the 5 volt fan mod in two of my seeds; they're running great for 24 hrs. now. I'm at 1175 kh/s with no red lines.

I was going to experiment with bfgminer mainly because of the nicer UI, but now that I see what Sandor is up to,  I'm just going to wait.....this version of cpuminer is the kitteh's meow sets my black heart a flutter......!

It's a joy to participate in this evolution......
thanx again guys.

You are very welcome. My 5V USB fan mod works great, doesn't it? I recommend you change the value to my 49.9k R52 value which has been found to be the optimum setting for best performance and profit. 50k will work just fine too Thanks again for your complement!

[suchmoon]

10 hours of running new cpuminer now.
27 miners @  950mhz gives average of 9300khs on poolside. Its less than it should be. 27x400= 10800.
Is this only my cpuminer problem or it should be that low?
Im out of ideas how to increase perfomance of miners which report 300-360khs with that cpuminer.
With cgminer, all miners reported 400-415.

Sorry if you have already mentioned this, but have you volt-modded the miners? 950 MHz will not perform well with standard voltage, and cgminer does not report hashrates correctly.

[almond]

"You are very welcome. My 5V USB fan mod works great, doesn't it? I recommend you change the value to my 49.9k R52 value which has been found to be the optimum setting for best performance and profit. 50k will work just fine too Wink Thanks again for your complement!"

the fan does work great at 5volts !
You know I would have tried a 49.9k resistor first, but I've got a bunch of 47k's in my stash.  They're 5%.   Before I mod my next pod, I'll measure some and look for one that runs on the high side.  Power is not cheap here so I don't mind using a little less.

I'll be selling some GPU's soon.  Anyone ?

[Kergekoin]

10 hours of running new cpuminer now.
27 miners @  950mhz gives average of 9300khs on poolside. Its less than it should be. 27x400= 10800.
Is this only my cpuminer problem or it should be that low?
Im out of ideas how to increase perfomance of miners which report 300-360khs with that cpuminer.
With cgminer, all miners reported 400-415.

Sorry if you have already mentioned this, but have you volt-modded the miners? 950 MHz will not perform well with standard voltage, and cgminer does not report hashrates correctly.

Yes, they are voltmodded for 950.
It turned out that couple of miners didnt work for some reason. They are not broken or anything and they also are signed to free virtual port. Cpuminer somehow ignores them even tho their com ports are specified in bat file.
Any ideas?

[gbyg]

ok I finally giving up running CPUMiner on Windows 7 and switched to Raspberry pi for some testing. Let's see if it will stop sending shares after a few minutes. So far they're running for 120+ minutes and doing fine. However I noticed a little drop of mining performance reported from pool side. Anyone using Raspberry pi for mining now? It it normal?

+1 to this.  Been running a blade for a few days now with mixed results.  Windows seems to top out at bursts over 4MH but averaging slightly under, nowhere near advertised clock speed.  Put both halves on separate pools to test results to see if it is the unit in question or an individual blade side. 

For RPi, are people using the ZH image, image from another vendor, etc.?  Setting up the ZH image right now so I can test with that.

Out of curiosity, what freq are people finding most reliable?  I've read through this thread a bit and want to try out the jmordica cgminer fork (see people mentioning 838 freq a few times), but all-in-all the hardware just appears to be underperforming right now and I can't quite crack why due to lacking software support.

I'm using Rasperian with a web based management interface which use CPUMiner. It has been 3 hrs now and pool side reports a more stable but slightly lower hash rate (8.9Mh/s~11Mh/s). I'm running 10x gridseed USB Miner plus a G-blade (2 instance) with auto-tune mode ON, plus 5x GTX 750 Ti at default speed (Result in a total of around 1.3Mh/s). The hash rate is kind of low isn't it?

Which RPI IMAGE comes with web GUI (use cpuminer)?

[jfabritz]

You forgot to add "--retries=1", and I don't think http protocol is supported, or I might have removed it for no reason.

Is there any likelihood that the "http" getwork type connections would be fixed in the near term? I'd love to try to unleash the power of my blades on some solo mining, and they all work on http... I don't want to go back to bfgminer or even mess around with cgminer. :-o

BTW, I am very impressed with what you've done to support the Gridseed community. Please keep up the good work!

Thanks,
Joe
Posted from Bitcointa.lk - #bczxB2mkRuXD7hXC

[darkfriend77]

I used probably every cgminer fork ... and I want back to the first one andreed
.... which is working flawlessly and reports me on one blade around avg. 5.25mh on the pool with 800 freq ...

tryed jmordica, gynau, dbartles ... and so on all where lower in hashrate ... I remarked this already with my gs5 ... no idear why ...

...

Using a clean debian wheezy build ... following that order https://litecointalk.org/index.php?topic=9908.msg142718#msg142718