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Author Topic: AMD Mem Tweak XL - Read/modify timings/pp/straps on the fly  (Read 57253 times)
swongsR1thing
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March 29, 2019, 03:30:06 PM
 #101

I get a little over ~1800 on srbminer 1.8.0 win10 at 880 mem and 900mV - Hynix memory is extremely unstable in my experience. GL man and cant wait to read your update.
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March 29, 2019, 04:05:58 PM
 #102

Holy shit, that's nice man.
Is it stable? Is this ubuntu or you use hiveos/minerstat/similar?

Ubuntu 18.04.2 LTS and AMD-gpu-pro 18.50

Still struggling with 4.15 kernel not able to set clocks properly.
Anything above 1700MHz in P7 state puts the GPU in crimp mode. So I have to use 1700/1030mV in P7 to get the highest possible coreclk. Ideal would be something like 1800/975mV in P7, that would make ~1650 effective clock in P7 at much lower wattage
I learned I will have to upgrade kernel, but don't know which version, there are also complains everywhere about 4.17-4.20 all over the forums.

I'm currently testing stability.

Wondering what would be the eth hashrate with these timings.
Implying on CN algos it gives +15%, 45mh*1.15=51.75mh
Gonna test it later.

could you share your values? and also is your vega 56 flashed to the vega 64 bios or stock?
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March 29, 2019, 04:19:54 PM
Last edit: March 29, 2019, 04:38:19 PM by Zorg33
 #103

Quote from: windward
could you share your values? and also is your vega 56 flashed to the vega 64 bios or stock?

Basically started with your settings and then added some more.
I'd like to enjoy the race a bit longer so I don't share it directly but I give you a hint: you can find some simple formulas quiet easily that help calculating the numbers.  Cool

Vega 64 bios, yes.
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March 29, 2019, 07:15:53 PM
 #104

Holy shit, that's nice man.
Is it stable? Is this ubuntu or you use hiveos/minerstat/similar?

Ubuntu 18.04.2 LTS and AMD-gpu-pro 18.50

Still struggling with 4.15 kernel not able to set clocks properly.
Anything above 1700MHz in P7 state puts the GPU in crimp mode. So I have to use 1700/1030mV in P7 to get the highest possible coreclk. Ideal would be something like 1800/975mV in P7, that would make ~1650 effective clock in P7 at much lower wattage
I learned I will have to upgrade kernel, but don't know which version, there are also complains everywhere about 4.17-4.20 all over the forums.

I'm currently testing stability.

Wondering what would be the eth hashrate with these timings.
Implying on CN algos it gives +15%, 45mh*1.15=51.75mh
Gonna test it later.

Dear god man... forget about the kernels and dial that thing down.  I get this is a dick measuring contest, but you’re prob running 225-250w for that 2100h/s, or about 80-100w more than you would need for 2000, without timing mods (I got 2K @ 837mv.)  +50% power for +5% h/r is not worth it - even if your power is free!
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March 29, 2019, 07:38:58 PM
 #105

Holy shit, that's nice man.
Is it stable? Is this ubuntu or you use hiveos/minerstat/similar?

Ubuntu 18.04.2 LTS and AMD-gpu-pro 18.50

Still struggling with 4.15 kernel not able to set clocks properly.
Anything above 1700MHz in P7 state puts the GPU in crimp mode. So I have to use 1700/1030mV in P7 to get the highest possible coreclk. Ideal would be something like 1800/975mV in P7, that would make ~1650 effective clock in P7 at much lower wattage
I learned I will have to upgrade kernel, but don't know which version, there are also complains everywhere about 4.17-4.20 all over the forums.

I'm currently testing stability.

Wondering what would be the eth hashrate with these timings.
Implying on CN algos it gives +15%, 45mh*1.15=51.75mh
Gonna test it later.

Hi,

We tested Vegas were the most stable with 18.50 driver + 4.16 kernel.
4.17 and upper had problems with stability and most of the times the GPUs were undetected. (clinfo)

https://github.com/minerstat/minerstat-os/blob/master/bin/overclock_vega.sh

This script works perfectly, you can give it a try.

Code:
sudo ./overclock_vega.sh 0 945 1100 80 950

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March 29, 2019, 07:49:34 PM
 #106

you’re prob running 225-250w for that 2100h/s, or about 80-100w more than you would need for 2000, without timing mods (I got 2K @ 837mv.)  +50% power for +5% h/r is not worth it - even if your power is free!

Normally 1500MHz needs around 925mV. I don't get those sub 850 numbers. Do you have a watt meter on it? Vddci is also set to <837?

to do the math in my case:  975/925=1.054  and 1.054^2 = 1.11 (+11%), and considering the higher clock, that means power consumption is only ~15% higher then before.


@coinscrow:
Thank you mate, going to try that!
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March 29, 2019, 10:10:59 PM
 #107

you’re prob running 225-250w for that 2100h/s, or about 80-100w more than you would need for 2000, without timing mods (I got 2K @ 837mv.)  +50% power for +5% h/r is not worth it - even if your power is free!

Normally 1500MHz needs around 925mV. I don't get those sub 850 numbers. Do you have a watt meter on it? Vddci is also set to <837?

to do the math in my case:  975/925=1.054  and 1.054^2 = 1.11 (+11%), and considering the higher clock, that means power consumption is only ~15% higher then before.


@coinscrow:
Thank you mate, going to try that!

Even 1500MHz is high - ~1400Mhz effective is a pretty efficient spot from all my testing. That combined w/ keeping your SOC <= 1107 MHz, generally allows <= 850mv.  My 50% number was based on 1030 vs 837mv - even @ 975 it would be 35%+. 

My 56 is plugged into a PDU, but on a mixed rig currently, so hard to isolate.  Though I have benched every GPU i own on a meter in the past (w/ multiple algos,) and tend to see 1400/1107 @ 837 eating around 160-170w (64 bios).

As to the 'mem/vddci' setting - since it's really just a vddc floor, in Windows I make it a point to always just set it well below my active state, while in linux I just use ppts, so it's forced by nature of being a table ref.

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March 29, 2019, 10:55:30 PM
 #108

1600MHz core needed to  drive out tuned 1100MHz HBM2 on the 2 CN forks I tested so far.
Daggerhashimoto is different in this sense.
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March 30, 2019, 06:05:05 PM
 #109

my results with Vega56 (samsung) on CN-R so far


What miner are you using to get those figures?
I'll be honest I'm a little disappointed. I get around 2050 per Vega56@64 with no memory timing tweaks using Teamredminer at 1458 core clock (~1410 effective), pretty much like pbfarmer.

...or is the miner slower on Linux?



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March 30, 2019, 06:50:53 PM
 #110

my results with Vega56 (samsung) on CN-R so far


What miner are you using to get those figures?
I'll be honest I'm a little disappointed. I get around 2050 per Vega56@64 with no memory timing tweaks using Teamredminer at 1458 core clock (~1410 effective), pretty much like pbfarmer.

...or is the miner slower on Linux?

That is XMRigCC-AMD

Teamredminer might be faster...

Which is the fastest CN miner for Linux?

I use SRB for win.
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March 30, 2019, 07:51:46 PM
 #111

my results with Vega56 (samsung) on CN-R so far


What miner are you using to get those figures?
I'll be honest I'm a little disappointed. I get around 2050 per Vega56@64 with no memory timing tweaks using Teamredminer at 1458 core clock (~1410 effective), pretty much like pbfarmer.

...or is the miner slower on Linux?

That is XMRigCC-AMD

Teamredminer might be faster...

Which is the fastest CN miner for Linux?

I use SRB for win.

TRM is fastest in win from what I’ve seen, and performs the same under Linux + amdgpu-pro 18.50
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March 30, 2019, 08:35:40 PM
Last edit: March 31, 2019, 06:54:07 PM by Zorg33
 #112

Today I tried ethash, but disappointment.
I can only reach 48.0 MH/s with Phoenix
For ethash it should be tuned towards high bandwidth and not low latency

Update:
Started tuning all over from a different approach and got 51+ MH/s Smiley
This timing seems stable so far. But got lower CN hashrate than the previous (~2050).

Update2:
51mh is verified by the pool side 6hr average and no invalid shares.



Hint:
Lowest stable RAS for me is 30. You can get the other numbers with the formula.

Any hint from the experts what to do with all the mysterius params at the lower part of the table? Tongue
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April 01, 2019, 05:14:34 PM
 #113

how can i use this tool? i tried
Code:
./amdmemtool --RFC 43 --ras2ras 176
but no success (from help). how to chose parameters for gddr5? i have rx 580/570. this is --currnet output:
Code:
GPU 0:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:01:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 24  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
GPU 1:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:02:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 24  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
GPU 2:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:03:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 25  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
GPU 3:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:04:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 24  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
GPU 4:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:06:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 25  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
GPU 5:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:08:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 24  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
GPU 6:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:09:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 25  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
GPU 7:  Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] pci:0000:0a:00.0
CAS
  CL: 22  W2R: 19  CCDS: 5  CCLD: 2  R2W: 26  NOPR: 0  NOPW: 0
RAS
  RC: 79  RRD: 6  RCDRA: 29  RCDR: 29  RCDWA: 23  RCDW: 23
MISC
  RFC: 219  TRP: 29  RP_RDA: 33  RP_WRA: 70
MISC2
  WDATATR: 0  T32AW: 7  CRCWL: 24  CRCRL: 3  FAW: 10  PA2WDATA: 0  PA2RDATA: 0
DRAM1
  RASMACTWR: 33  RASMACTRD: 30  ACTWR: 14  ACTRD: 18
DRAM2
  RAS2RAS: 18  RP: 14  WRPLUSRP: 30  BUS_TURN: 33
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April 01, 2019, 09:39:52 PM
 #114

There is a tool for mem timings strap encode/decode. Google it.
But for polaris the public straps are quiet good. They are included in PBE. You can also see them in the source.

Anyone willing to share results of Radeon VII ? I'm curious.
If 110mh is possible with stock timings, then there is much potential in the memory. Might be core bottlenecked.
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April 02, 2019, 02:19:35 AM
 #115

you’re prob running 225-250w for that 2100h/s, or about 80-100w more than you would need for 2000, without timing mods (I got 2K @ 837mv.)  +50% power for +5% h/r is not worth it - even if your power is free!

Normally 1500MHz needs around 925mV. I don't get those sub 850 numbers. Do you have a watt meter on it? Vddci is also set to <837?

to do the math in my case:  975/925=1.054  and 1.054^2 = 1.11 (+11%), and considering the higher clock, that means power consumption is only ~15% higher then before.


@coinscrow:
Thank you mate, going to try that!

Even 1500MHz is high - ~1400Mhz effective is a pretty efficient spot from all my testing. That combined w/ keeping your SOC <= 1107 MHz, generally allows <= 850mv.  My 50% number was based on 1030 vs 837mv - even @ 975 it would be 35%+.  

My 56 is plugged into a PDU, but on a mixed rig currently, so hard to isolate.  Though I have benched every GPU i own on a meter in the past (w/ multiple algos,) and tend to see 1400/1107 @ 837 eating around 160-170w (64 bios).

As to the 'mem/vddci' setting - since it's really just a vddc floor, in Windows I make it a point to always just set it well below my active state, while in linux I just use ppts, so it's forced by nature of being a table ref.



dear sir, can u share your ppt settings at win with cnr algo? I have some questions ①is it necessary to flash 56 to 64 bios? hynix memory can flash to 64?②what driver are u use?  

my vega can not get below 863mv under my setting, stock bios, see the picture i upload, what should i do to lower it's power consume, thanks
http://www.kepfeltoltes.eu/images/2019/03/468_24494_20449_22270_292.png
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April 02, 2019, 07:16:16 AM
Last edit: April 02, 2019, 07:30:24 AM by dnkn
 #116

Ethash benefits from memory bandwidth, so it's no surprise r7 does that hr. It has 1tb/sec bandwidth. So it's capable of about 128mh theoretically. Cryptonight algos benefit from low latency.
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April 02, 2019, 08:00:00 AM
 #117

Testing stability the past two days.
The light timing with ETH 51mh is rock solid.
The more edgy timings for CN algos needs to be smoothened because after a few hours mining stopped. It was 2130h/s till then.

BTW I tried kernel 4.16 but totally same behaviour lik 4.15. The main problem is I can't set p7 above 1700MHz to get ~1500 at low voltage.
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April 02, 2019, 02:38:06 PM
 #118

Has nobody ported this to Windows yet?

I'd be happy to do all testing myself and share my findings in this and other threads... But I'm not going to install Ubuntu and all that shizzle for that sole purpose. I suck at Linux unfortunately...



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dnkn
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April 02, 2019, 05:13:29 PM
 #119

If you want it easy go for hiveos. It's very simple and this tool is already included. You don't have to install it, you can run it from usb drive.
This version is specifically for rx Vega series https://download.hiveos.farm/hiveos-vega-0.6-01@181121.zip you should update it at the first boot. It's just a matter of one click.
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April 02, 2019, 10:32:40 PM
Last edit: April 03, 2019, 06:00:20 AM by pbfarmer
 #120

dear sir, can u share your ppt settings at win with cnr algo? I have some questions ①is it necessary to flash 56 to 64 bios? hynix memory can flash to 64?②what driver are u use?  

my vega can not get below 863mv under my setting, stock bios, see the picture i upload, what should i do to lower it's power consume, thanks

I'm using linux, so my ppts are different from windows.  

No, it's not necessary to flash your 56, and I wouldn't recommend it for cn/r.  Some algos make better use of high bandwidth (high clocks), but cn/r is not really one of them - CN in general likes low latency, so the stock 56 bios is fine (and will save you some power.)

I'm guessing you're using 19.3.x drivers?  If so, I'm betting your problem is that you have the stock 900mv set in your mem p2 state, which if that's the case, means regardless of your other settings, you will always run @ minimum 900mv (minus droop) unless you disable the state (for example, in overdriventool), or use a PPT which lowers the setting.
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