Gateless Gate Sharp 1.3.8: 30Mh/s (Ethash) on RX 480! - page 170.

nerdralph

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Quote from: zawawa on February 04, 2017, 11:16:24 AM

AMD Linux drivers are truly an abomination...

I had problems with AMDGPU-PRO 16.40, but fglrx has worked great for me on Ubuntu 14.04. "apt-get install fglrx" just works. The only other thing you might need to do (if you want clock control) is "aticonfig --initial --adapter=all" and disable gpu-manager.

zawawa

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Quote from: nerdralph on February 04, 2017, 09:05:21 AM

Quote from: zawawa on February 03, 2017, 01:52:43 PM

Just to let you know, I was able to link the object file of the kernel with libclc. The only remaining step is to convert one big LLVM Bit Code (.bc) file into an OpenCL binary. We will see.

I'd be interested in seeing your complile/link options. I ran into issues with the linking where it wouldn't find functions like get_global_id(), or when I tried building a different way I was getting duplicate definitions.
It looked like here had been some changes/renaming related to the amdgpu back-end, and I was having a hard time finding documentation on the -x cl and -target options. I was planning to look through the llvm source but haven't got around to it yet.

I will get to that as soon as I am done fixing my Linux installation.
AMD Linux drivers are truly an abomination...

nerdralph

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Quote from: zawawa on February 03, 2017, 01:52:43 PM

Just to let you know, I was able to link the object file of the kernel with libclc. The only remaining step is to convert one big LLVM Bit Code (.bc) file into an OpenCL binary. We will see.

I'd be interested in seeing your complile/link options. I ran into issues with the linking where it wouldn't find functions like get_global_id(), or when I tried building a different way I was getting duplicate definitions.
It looked like here had been some changes/renaming related to the amdgpu back-end, and I was having a hard time finding documentation on the -x cl and -target options. I was planning to look through the llvm source but haven't got around to it yet.

zawawa

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Quote from: nerdralph on February 03, 2017, 11:11:22 AM

I've been crunching more numbers on the GDS performance, and I think for GPUs with more than 4 memory controllers (like Tahiti & Hawaii) that the best performance may be from splitting the row counters between L2 and GDS. With all the row counters in GDS, the GDS bandwidth should get maxed out before the core/L2 bandwidth limit is reached.

That recommendation is consistent with my somewhat informal observations. Thank you so much!
Just to let you know, I was able to link the object file of the kernel with libclc. The only remaining step is to convert one big LLVM Bit Code (.bc) file into an OpenCL binary. We will see.

nerdralph

sr. member

Activity: 588

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I've been crunching more numbers on the GDS performance, and I think for GPUs with more than 4 memory controllers (like Tahiti & Hawaii) that the best performance may be from splitting the row counters between L2 and GDS. With all the row counters in GDS, the GDS bandwidth should get maxed out before the core/L2 bandwidth limit is reached.

zawawa

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Quote from: twan69666 on February 02, 2017, 06:05:02 PM

Zawawa, I've always been a lurker, but had to register to say thank you! Very flexible miner and great work you're doing.

I'm an AMD guy, so I just sent you a few $ as a thank you. Keep up the great work!

Thanks! It's still a work in progress, but I'm glad you liked it.

zawawa

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Quote from: toptek on February 02, 2017, 01:06:16 PM

my 470 4 gb is getting 680 mh Pascal mining, does that sound about right ? . with Gateless

That looks about right.

zawawa

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Quote from: reb0rn21 on February 01, 2017, 09:59:34 PM

Quote from: zawawa on February 01, 2017, 09:51:58 PM

Here is the PASC support:

https://github.com/zawawawa/gatelessgate/releases/tag/v0.1.3-pre1

I'm still working on the assembly version. Enjoy!

can you fix CPU usage on Nvidia and pascal cards in opencl?

there is no way to run 5 cards rig on any CPU, each card use 30% from i5 CPU

NV 1070 works fine with -w 1024, speed is 1Ghs, but as I sad CPU usage is problem with opencl and NV

zcash did not work on NV

ethash works fine with gpu thread 1, but only HW errors, need to play with settings

That's right. I totally forgot about the NVIDIA CPU usage problem.
I will look into a permanent solution.

twan69666

newbie

Activity: 59

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Zawawa, I've always been a lurker, but had to register to say thank you! Very flexible miner and great work you're doing.

I'm an AMD guy, so I just sent you a few $ as a thank you. Keep up the great work!

toptek

legendary

Activity: 1274

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my 470 4 gb is getting 680 mh Pascal mining, does that sound about right ? . with Gateless

reb0rn21

legendary

Activity: 1901

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Quote from: zawawa on February 01, 2017, 09:51:58 PM

Here is the PASC support:

https://github.com/zawawawa/gatelessgate/releases/tag/v0.1.3-pre1

I'm still working on the assembly version. Enjoy!

can you fix CPU usage on Nvidia and pascal cards in opencl?

there is no way to run 5 cards rig on any CPU, each card use 30% from i5 CPU

NV 1070 works fine with -w 1024, speed is 1Ghs, but as I sad CPU usage is problem with opencl and NV

zcash did not work on NV

ethash works fine with gpu thread 1, but only HW errors, need to play with settings

zawawa

sr. member

Activity: 728

Merit: 304

Miner Developer

Here is the PASC support:

https://github.com/zawawawa/gatelessgate/releases/tag/v0.1.3-pre1

I'm still working on the assembly version. Enjoy!

zawawa

sr. member

Activity: 728

Merit: 304

Miner Developer

Looks like liblcl, the OpenCL library for LLVM, is a major pain to build as well.
I just hope the inline assembly would really work...

kilo17

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aka "whocares"

zawawa - PM sent Wink

rjg

newbie

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Quote from: ioglnx on February 01, 2017, 01:29:17 PM

Could someone please be so kind to provide a windows build?

Please read 2 posts above yours...

ioglnx

sr. member

Activity: 574

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Fighting mob law and inquisition in this forum

What calm down? I didn't even get bad or unpatient. I just asked..maybe if you get cold water its hot for you right?

joaocha

full member

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Quote from: ioglnx on February 01, 2017, 01:29:17 PM

Could someone please be so kind to provide a windows build?

Just calm down, it ill be ready very soon Kiss

ioglnx

sr. member

Activity: 574

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Fighting mob law and inquisition in this forum

Could someone please be so kind to provide a windows build?

ioglnx

sr. member

Activity: 574

Merit: 250

Fighting mob law and inquisition in this forum

Can you tell me witch gotchas was it in the cl file?

zawawa

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I suppose I wasn't very clear. Support for PASC is already in the repo.
(I just ported the suprnova stuff. There were some really nasty gotchas.)
I will prepare a next point release with a precompiled Windows binary today or tomorrow.

I'm building llvm now. So far, so good...

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