Braiins OS & Braiins OS+ custom ASIC firmware: optimize performance & efficiency - page 41.

jfaubin

newbie

Activity: 16

Merit: 0

Quote from: sergw on November 06, 2018, 09:24:57 AM

sure, i will upload it on github and share here, hope in a few days i find time for it. i'll post link here for it.

Thanks guy!

Quote from: papampi_2 on November 06, 2018, 01:10:18 PM

These are the hashrates and powers I got in 15 minutes tests with antminer s9i 14Th/s:

[...]

Hi Papampi,

Do you have temperature value with your s9I at all frequency?
I have my S9i at 700MHz, 8.8Volts and 14.81TH, but the temp is between 96 to 102 Celcius

https://imgur.com/gallery/cqAN9Ul

papampi_2

jr. member

Activity: 112

Merit: 3

Linux Forever... Resistance is futile!!!

These are the hashrates and powers I got in 15 minutes tests with antminer s9i 14Th/s:

Code:

Freq Volt Th/s Watt Watt/Th
650 8.8 13.80 1270 92.0290
675 8.7 14.28 1280 89.6359
700 8.7 14.70 1335 90.8163
725 8.7 15.30 1375 89.8693
725 8.6 15.00 1350 90.0000
750 8.7 15.65 1420 90.7348
750 8.6 15.30 1390 90.8497

Quote from: nick5429 on November 06, 2018, 01:07:03 PM

Presuming this is still derived from the original bitmain firmware's implementation -- would you please release an update for this rebased on the 11/3 update from bitmain that resolves the 'hashrate dropping over time' issue? (Or advise that it's not necessary for your implementation)

https://twitter.com/Antminer_main/status/1058714676865855488

Thanks

I have not tested braiins more than 15 minutes and have not seen drops in that time frame
Have you experienced hash drops over time?
If so after how long?

nick5429

member

Activity: 79

Merit: 14

Quote from: braiins on September 24, 2018, 10:16:26 AM

Second alpha release Wolfram with overt AsicBoost support for all S9's

Presuming this is still derived from the original bitmain firmware's implementation -- would you please release an update for this rebased on the 11/3 update from bitmain that resolves the 'hashrate dropping over time' issue? (Or advise that it's not necessary for your implementation)

https://twitter.com/Antminer_main/status/1058714676865855488

Thanks

sergw

member

Activity: 159

Merit: 12

Quote from: jfaubin on November 06, 2018, 08:31:02 AM

Hi, it is possible to share?

sure, i will upload it on github and share here, hope in a few days i find time for it. i'll post link here for it.

jfaubin

newbie

Activity: 16

Merit: 0

Quote from: sergw on November 06, 2018, 06:27:41 AM

this is simple php page that i created to collect miners stats via API and show on single page.

Hi, it is possible to share?

sergw

member

Activity: 159

Merit: 12

Quote from: papampi_2 on November 06, 2018, 02:30:25 AM

Can I ask whats the program you use to get all those details in that simple page?

this is simple php page that i created to collect miners stats via API and show on single page.

papampi_2

jr. member

Activity: 112

Merit: 3

Linux Forever... Resistance is futile!!!

Quote from: Apprentice on November 06, 2018, 03:27:08 AM

hmm..well at 670 and 9V am getting 14.7xT
When increasing the frequency some of the chains are not supporting it and hashing lower. Guess this is where the BM autotune comes in handy.

I would check first the autotune frequencies on the original firmware and start from there, and assess which chain is versatile

Thats exactly where we need more info.
Whether higher voltage with lower freq is better or higher freq with lower voltage.

Apprentice

full member

Activity: 500

Merit: 105

Quote from: papampi_2 on November 06, 2018, 03:22:12 AM

At 700M + 8.7V got to 14.85 Th/s and at 725M + 8.7V got to 15.2 Th/s
Temperature was around 80C and fans was working with much lower speed than default.
No idea if its possible to calculate power draw from voltage or I should get a separate power meter to check that.

hmm..well at 670 and 9V am getting 14.7xT
When increasing the frequency some of the chains are not supporting it and hashing lower. Guess this is where the BM autotune comes in handy.

I would check first the autotune frequencies on the original firmware and start from there, and assess which chain is versatile

papampi_2

jr. member

Activity: 112

Merit: 3

Linux Forever... Resistance is futile!!!

Quote from: Apprentice on November 06, 2018, 03:02:46 AM

What's the hashrate at 700?

At 700M + 8.7V got to 14.85 Th/s and at 725M + 8.7V got to 15.2 Th/s
Temperature was around 80C and fans was working with much lower speed than default.
No idea if its possible to calculate power draw from voltage or I should get a separate power meter to check that.

Apprentice

full member

Activity: 500

Merit: 105

What's the hashrate at 700?

papampi_2

jr. member

Activity: 112

Merit: 3

Linux Forever... Resistance is futile!!!

Quote from: Apprentice on November 06, 2018, 02:36:01 AM

same thing here. I know voltage should increase with overclocking. noticed that when increasing he voltage, I am getting higher hashrate.
Did check the kernel of the bitmain firmware and voltages for the 14T is 8.9/9V.

Thanks for confirming, thought I'm missing some thing
Hopefully some one will shed some light on the matter

Apprentice

full member

Activity: 500

Merit: 105

Quote from: papampi_2 on November 06, 2018, 02:30:25 AM

I just tested latest braiins on an S9i 14 Th/s to see how it goes
Every thing is perfect and works smooth.

Need a little help understanding the frequency and voltage relations

Default frequency shows 650 M with 8.8 V
When I raise freq to any value higher recommended voltage goes down to 8.7V,

Set it to 700 and recommended voltage shows 8.7
And when lowering freq, voltage goes high So when I set it to 600M it goes to 9.0V

Doesnt raising freq should need higher power and raise voltage ?
Any way to calculate power draw (W) from voltage?

same thing here. I know voltage should increase with overclocking. noticed that when increasing he voltage, I am getting higher hashrate.
Did check the kernel of the bitmain firmware and voltages for the 14T is 8.9/9V.

papampi_2

jr. member

Activity: 112

Merit: 3

Linux Forever... Resistance is futile!!!

I just tested latest braiins on an S9i 14 Th/s to see how it goes
Every thing is perfect and works smooth.

Need a little help understanding the frequency and voltage relations

Default frequency shows 650 M with 8.8 V
When I raise freq to any higher value, recommended voltage goes down to 8.7V,

Set it to 700 and recommended voltage shows 8.7
And when lowering freq, voltage goes high So when I set it to 600M it goes to 9.0V

Doesnt raising freq should need higher power and raise voltage ?
Any way to calculate power draw (W) from voltage?

Quote from: sergw on November 05, 2018, 05:31:40 PM

pretty interesting, after installing brains os, one of my S9 shows ~100 C temp however board temp is normal, anybody faced same issue?

https://i.imgur.com/p0qZPov.png

Can I ask whats the program you use to get all those details in that simple page?

sergw

member

Activity: 159

Merit: 12

Quote from: pipcrypdoh on November 05, 2018, 12:52:58 PM

Without getting into my reasons of why I or someone else wouldn't want particular miners on braiins (few cards hashing at 5+k TH/s... mmk). Anyways, the miner can just be restarted and bring back the gui as well as cgminer. Reinstall isn't going to help thwart off the original issue of downgrading back to bitmain firmware.

i agree, rollback to bitmain fw should work flawlessly, otherwise you get bricked device and need somehow to restore fw.

pretty interesting, after installing brains os, one of my S9 shows ~100 C temp however board temp is normal, anybody faced same issue?

https://i.imgur.com/p0qZPov.png

JW2703

newbie

Activity: 1

Merit: 0

HI,

Chain 1 didn´t do any change in hasrate. I tried a few frequenzes but it doesn´t go more than 4.5 th/s. The other two boards working well with 775M and 8.7 Volt, round about (4.9 th/s and 5.4 th/s)

Any ideas?

pipcrypdoh

newbie

Activity: 5

Merit: 0

Quote from: sergw on November 05, 2018, 05:34:51 AM

i tried to dig into upgrade2bos.py script, and looks like it is possible to re-install it by commenting backup and prep functions:

[...]

Without getting into my reasons of why I or someone else wouldn't want particular miners on braiins (few cards hashing at 5+k TH/s... mmk). Anyways, the miner can just be restarted and bring back the gui as well as cgminer. Reinstall isn't going to help thwart off the original issue of downgrading back to bitmain firmware. I'll probably just end up going the sd card route anyways as I accidentally changed the wrong config line and bricked 3 miners... Whoops.

sergw

member

Activity: 159

Merit: 12

Quote from: ?? on ??

No nobody has really had a solution for me yet. I've just been making notes of which ones currently, then I'll come back to it.

i tried to dig into upgrade2bos.py script, and looks like it is possible to re-install it by commenting backup and prep functions:

Code:

def main(args):
print("Connecting to remote host...")
with SSHManager(args.hostname, USERNAME, PASSWORD) as ssh:
# check compatibility of remote server
check_compatibility(ssh)

# if not args.no_backup:
# backup_firmware(ssh) [b]<-- comment out[/b]

# prepare target directory
ssh.run('rm', '-fr', TARGET_DIR)
ssh.run('mkdir', '-p', TARGET_DIR)

# upgrade remote system with missing utilities
if os.path.isdir(SYSTEM_DIR):
# prepare_system(ssh) [b]<-- comment out[/b]

pipcrypdoh

newbie

Activity: 5

Merit: 0

Quote from: sergw on November 04, 2018, 03:07:51 PM

I have the same issue, have you managed to recover it to original firmware or restore braiins os?

No nobody has really had a solution for me yet. I've just been making notes of which ones currently, then I'll come back to it.

Trying to make sense of the git directions for custom config/deployment. Is it possible to just add a password, worker username and preset chain freq/volt?

Raize

donator

Activity: 1419

Merit: 1015

Quote from: jfaubin on November 04, 2018, 12:29:52 PM

I wou;d download Brain os, but i receive an error 520 on all files located in : https://feeds.braiins-os.org/

Do you have another mirror?

Similar to jfaubin, I am also having issues with Cloudflare Kansas City errors when downloading the .ASC file. At some point it appears the hosted firmware file itself started working, but the .ASC file still is not.

spartadata

copper member

Activity: 42

Merit: 0

Has anyone produced a detailed video tutorial on backing up stock firmware onto sd then performing the Braiins firmware update on an Antminer S9? This will be most aidfull to new miners...

a blog step by step or video I am sure will generate good traffic is made... please share any such tuts...

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