Gateless Gate Sharp 1.3.8: 30Mh/s (Ethash) on RX 480!

[zawawa]

I can now see how sloppy optimizations of AMD's drivers are...
They should be more aggressive with alloca promotion.

Code:

  // TODO: Have some sort of hint or other heuristics to guess occupancy based
  // on other factors..
  unsigned OccupancyHint
    = AMDGPU::getIntegerAttribute(F, "amdgpu-max-waves-per-eu", 0);
  if (OccupancyHint == 0)
    OccupancyHint = 7;

Code:

  // FIXME: There is no reason why we can't support larger arrays, we
  // are just being conservative for now.
  if (!AllocaTy ||
      AllocaTy->getElementType()->isVectorTy() ||
      AllocaTy->getNumElements() > 4 ||
      AllocaTy->getNumElements() < 2) {
    DEBUG(dbgs() << "  Cannot convert type to vector\n");
    return false;
  }

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[joaocha]

Where are you zawawa 

[zawawa]

Where are you zawawa 

Oh, I'm right here. I was really focused on programming.
This LLVM thing is taking way too long, so I might take a break and work on the previous assembly version instead.

[zawawa]

The new compiler for GCN is passing all the tests I created, but it seems to have some compatibility issues with GG's Equihash kernel. I hope I don't have to spend too much time rewriting the kernel...

[zawawa]

It seems like I have to rewrite the whole kernel for the new compiler.
I had no idea LLVM would be so picky. Not a good indication for future AMD drivers.
I will take my time with this project and return to the old assembly version for now.
After wrestling with LLVM, GG's Equihash kernel looks so tiny...

[fr4nkthetank]

zawawa when this is done, don't forget to apply for a sweet job at AMD   we could use help on the inside ヽ༼◕ل͜◕༽ﾉ

[cryptominer420]

zawawa when this is done, don't forget to apply for a sweet job at AMD   we could use help on the inside ヽ༼◕ل͜◕༽ﾉ

I 2nd the motion

[zawawa]

Actually, I live not too far from AMD's headquarters. (It's commutable.)
Whether they want me or not is an entirely different question, though...

Now I think about it, the aforementioned incompatibility may have something to do with instruction alignments:

https://github.com/CLRX/CLRX-mirror/wiki/GcnTimings

None of this is officially documented, of course...

[citronick]

zawa3

Tried this on Nanos but getting this error. Can help?

[15:41:07] Started Gateless Gate v0.1.3-pre1
[15:41:07] Started Gateless Gate v0.1.3-pre1
[15:41:07] * using Jansson 2.9
[15:41:07] Probing for an alive pool
[15:41:08] Startup GPU initialization... Using settings from pool cryptonight.usa.nicehash.com.
[15:41:08] Startup Pool No = 0
[15:41:08] Building binary cryptonightFijigw4l4.bin
[15:41:08] Error -11: Building Program (clBuildProgram)

[zawawa]

zawa3

Tried this on Nanos but getting this error. Can help?

[15:41:07] Started Gateless Gate v0.1.3-pre1
[15:41:07] Started Gateless Gate v0.1.3-pre1
[15:41:07] * using Jansson 2.9
[15:41:07] Probing for an alive pool
[15:41:08] Startup GPU initialization... Using settings from pool cryptonight.usa.nicehash.com.
[15:41:08] Startup Pool No = 0
[15:41:08] Building binary cryptonightFijigw4l4.bin
[15:41:08] Error -11: Building Program (clBuildProgram)

It must be the driver. Have you tried Crimson 16.9.2?

[Ursul0]

just FYI guys: running any of SGminer forks with CryptoNote on Win10 may produce 100% fan bug (occasionally fans jump to 100%) however it seems that single specific version: 16.11.4 fixes this problem.

EDIT: I'm talking Polaris cards here

[woodaxe]

just FYI guys: running any of SGminer forks with CryptoNote on Win10 may produce 100% fan bug (occasionally fans jump to 100%) however it seems that single specific version: 16.10.4 fixes this problem.

 will that work with modded bios

[Ursul0]

just FYI guys: running any of SGminer forks with CryptoNote on Win10 may produce 100% fan bug (occasionally fans jump to 100%) however it seems that single specific version: 16.10.4 fixes this problem.

 will that work with modded bios

indeed it does. there was no bois signature check in versions up to 16.12 (from 16.9.1?)
(also you can bypass it: https://www.techpowerup.com/228536/amd-bios-signature-check-re-enabled-with-relive-locks-out-polaris-bios-modders)

[woodaxe]

just FYI guys: running any of SGminer forks with CryptoNote on Win10 may produce 100% fan bug (occasionally fans jump to 100%) however it seems that single specific version: 16.10.4 fixes this problem.

 will that work with modded bios

indeed it does. there was no bois signature check in versions up to 16.12 (from 16.9.1?)
(also you can bypass it: https://www.techpowerup.com/228536/amd-bios-signature-check-re-enabled-with-relive-locks-out-polaris-bios-modders)

 thanks   i cannot find a 16.10.4  on amd  site

[Ursul0]

just FYI guys: running any of SGminer forks with CryptoNote on Win10 may produce 100% fan bug (occasionally fans jump to 100%) however it seems that single specific version: 16.10.4 fixes this problem.

 will that work with modded bios

indeed it does. there was no bois signature check in versions up to 16.12 (from 16.9.1?)
(also you can bypass it: https://www.techpowerup.com/228536/amd-bios-signature-check-re-enabled-with-relive-locks-out-polaris-bios-modders)

 thanks   i cannot find a 16.10.4  on amd  site

fuck, I'm an idiot, it's 16.11.4, sorry for that

[woodaxe]

just FYI guys: running any of SGminer forks with CryptoNote on Win10 may produce 100% fan bug (occasionally fans jump to 100%) however it seems that single specific version: 16.10.4 fixes this problem.

 will that work with modded bios

indeed it does. there was no bois signature check in versions up to 16.12 (from 16.9.1?)
(also you can bypass it: https://www.techpowerup.com/228536/amd-bios-signature-check-re-enabled-with-relive-locks-out-polaris-bios-modders)

 thanks   i cannot find a 16.10.4  on amd  site

fuck, I'm an idiot, it's 16.11.4, sorry for that

np  ive found the right ones 16.11.4   il install them later today 

[h311m4n]

Hi Zawawa, something weird happening.

EDIT: nevermind, got it working, bat file issue...

On my two 6x RX470 rigs (Win 10), no issues running the miner.

However, on my rig with 2 R390X (Win 7 x64), when I launch the bat file, I see the yellow text appearing and it immediately goes to "Press a key to continue...". I don't get why it's not launching  

Cheers

[zawawa]

Hi Zawawa, something weird happening.

On my two 6x RX470 rigs (Win 10), no issues running the miner.

However, on my rig with 2 R390X (Win 7 x64), when I launch the bat file, I see the yellow text appearing and it immediately goes to "Press a key to continue...". I don't get why it's not launching 

Cheers

A wrong platform is specified.

[megacrypto]

i could never understand how to compile / use this on ubuntu 16.04 ? i know it might be a stupid question, but could someone kindly write a simple full step by step how-to build on ubuntu 16.04? it will be very much appreciated

[woodaxe]

just FYI guys: running any of SGminer forks with CryptoNote on Win10 may produce 100% fan bug (occasionally fans jump to 100%) however it seems that single specific version: 16.10.4 fixes this problem.

 will that work with modded bios

indeed it does. there was no bois signature check in versions up to 16.12 (from 16.9.1?)
(also you can bypass it: https://www.techpowerup.com/228536/amd-bios-signature-check-re-enabled-with-relive-locks-out-polaris-bios-modders)

 thanks   i cannot find a 16.10.4  on amd  site

fuck, I'm an idiot, it's 16.11.4, sorry for that

np  ive found the right ones 16.11.4   il install them later today 

 a nightmare  used ddu to  clear old drivers etc  installed 16.11.4  but it didnt install amd settings or wattman  and when i looked in device drivers  showed only vga drivers  i tried for well over a hour to sort it  even went back to my 16.9.2  but each time  no amd settings  or wattman   in the end i gave up and
used the auto updater which installed 17. sommat  which is working ok  but means i cannot  use modded bios  anyone any ideas where ive gone wrong