[Dev] NeoScrypt GPU Miner - Public Beta Test

fragilefungi

I did notice one potential bug. When I start the gpu miner while the cpuminer is running, one of the cpu threads stops hashing. I turn the threads down to 3 and get the same hashrate as 4 in the cpuminer. Cpuminer runs fine on 4 threads doing neoscrypt if the gpu is mining x11. Any thoughts? It is only 3khash/sec but still it seems weird.

EDIT: I just tested Darkcoing cpuminer v1.3 running while cgminer 3.7.7b was also running. The darkcoin cpuminer worked better on 3 threads as well. Is it possible that cgminer needs to use a dedicated cpu thread to run?

Alpha Wolf

I played with 3.7.3 Kalroth some interesting output. xI:4 T:2 this version should be looked at as a contender I would think.

sgminer 4.1 worked about the same with a little less hash rate.

Coding it over to neoscript might be a pain since so much time has been put into other versions.

{
"pools" : [
	{
		"url" : "stratum+tcp://p2pool.maeh.org:10554",
		"user" : "Pn18tqfzFNPUcFjJRq1GRYdYDJjKTBNGpq",
		"pass" : "x"
	}
]
,
"xintensity" : "4",
"vectors" : "1",
"worksize" : "256",
"kernel" : "poclbm",
"lookup-gap" : "0",
"gpu-threads" : "2",
"thread-concurrency" : "0",
"gpu-engine" : "0-0",
"gpu-fan" : "0-0",
"gpu-memclock" : "0",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "0",
"temp-target" : "0",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"failover-switch-delay" : "60",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"log" : "5",
"log-dateformat" : "0",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

ghostlander

What did you expect? The kernel in the regular cgminer has not gotten any optimizations. Unfortunately most of the time was spend in figuring the changes in the protocol.

To get more out of the HD5870 try to play with the worksize -w and intensity -I

I suggest starting with -w 128 and -I 8 and than increasing -I in steps of one untill the memory can’t get allocated anymore
and retry this series with -w 256 and -w 512, then choose the best result for your card and system.

Allways note down the number of hashes you get while running for an equal number of minutes.

I’ve made enough research before posting. 6KH/s is as much as it can do with --thread-concurrency 8192 -w 128 -I 13. ATI/AMD cards of their VLIW5/VLIW4 architectures require more optimisation than newer GCN or NVIDIA CUDA cores. They also need much higher intensities for the best performance.

An older and weaker 9800GTX which has never been any good to mining produces 3.5KH/s without HW errors (-I 11) and 4.7KH/s with them (-I 12). HD5870 vs. 9800GTX under Scrypt is 400KH/s vs. 50KH/s.

kris_davison

Well levelling the playing field is a good thing it means it can be more “fair” and potentially cheaper to mine?

tmuir12

Just compiled 3.7.7b and I’ve only been running for a few minutes but it looks to be just ever so faster than the previous versions for me.

Will let it tun for a while and report back

daimyo

folks, can you upload a precompiled 3.7.7b ?

tmuir12

folks, can you upload a precompiled 3.7.7b ?

Here you go, for windows

https://www.dropbox.com/s/mbteys6opg4odlj/cgminer-3.7.7.bNeoscrypt.zip?dl=0

cisahasa

I’ve adapted bfgminers windows build.txt to compile the gpu miner for AMD cards.

Somebody please check my sloppy work and add what i surely forgot, it would be nice if somebody could add the instructions for Nvidia.

https://mega.co.nz/#!IN92iKzB!7T1QNhlHrC3ThjWHv55voOVBL5xBSLSyfV4VnuSxe-A

Also a link to version 3.7.7b that i compiled with these instructions

https://mega.co.nz/#!FcVTEQyQ!ozPVAzZJCIGm7-nbqB3E4y1xudHI62g6YVfF_YI_GUI

Copy libglib-2.0-0.dll from C:\Program Files\GTK2-Runtime\bin to C:\MinGW\bin

is this missing file intl.dll? -did not help

edit: reinstalled mingw and gpu mining is now found

compiled and hashing!

i used CFLAGS=“-O2 -msse2” instead of -02 -g

file size 519KB instead of 1436KB, what is changed? working fine…

leaving 280x/3.7.7b working with -g 2 -w 24 -I 13

daimyo

tmuir12, Chrome doesnt even let me download it… :D

tmuir12

tmuir12, Chrome doesnt even let me download it… :D

Don’t know why, maybe its a Chrome thing.

I use Firefox and just opened up IE and it works for that too.

Ijust realised I left a space in the filename, maybe Chrome doesn’t like that, so I have fixed it.

I’ve updated the link above, but here it is again

https://www.dropbox.com/s/mbteys6opg4odlj/cgminer-3.7.7.bNeoscrypt.zip?dl=0

daimyo

says zlib1.dll is missing

fragilefungi

I am so ready for the 25th. You guys should really edit the first post of this topic so people can find the right download on the first page.

says zlib1.dll is missing

The cgminer 1.75 zip file from the first page don’t have that driver. You don’t want that version anyways. 1.7.7b is more stable and has higher performance.

Also a link to version 3.7.7b that i compiled with these instructions

https://mega.co.nz/#!FcVTEQyQ!ozPVAzZJCIGm7-nbqB3E4y1xudHI62g6YVfF_YI_GUI

I am running that version with my bat file:

setx DISPLAY 0

setx GPU_MAX_ALLOC_PERCENT 100

setx GPU_USE_SYNC_OBJECTS 1

cgminer.exe --neoscrypt -I 11 -w32 -g 2 -o stratum+tcp://atlas.phoenixcoin.org:10554 -u

-p x

I am getting 40.5khash/sec on a GeForce GTX 560.

einkerl

The current version of neo-gpu miner does not work with AMD drivers higher than 13.12.

I found that when i add the amd opencl files from the 13.12 driver pack to the cgminer directory that it does work with the 14.xx drivers.

But a little slower…

If anybody is interested … link to neo-gpuminer 3.7.7b that works on 14.xx AMD drivers

https://mega.co.nz/#!lVUURaAK!epWoeHGYXiKFXlAJ2VvG9LwuUBh-4bi1TNS-JXjgxLQ

Using setx display, gpu, etc does not add anything to performance, just leave it out.

I get 90kh/s on an amd 280x with these settings

cgminer.exe --neoscrypt -I 14 -w 48 -o stratum+tcp://prometheus.phoenixcoin.org:10554 -u

-p x

cisahasa

The current version of neo-gpu miner does not work with AMD drivers higher than 13.12.

I found that when i add the amd opencl files from the 13.12 driver pack to the cgminer directory that it does work with the 14.xx drivers.

But a little slower…

If anybody is interested … link to neo-gpuminer 3.7.7b that works on 14.xx AMD drivers

https://mega.co.nz/#!lVUURaAK!epWoeHGYXiKFXlAJ2VvG9LwuUBh-4bi1TNS-JXjgxLQ

Using setx display, gpu, etc does not add anything to performance, just leave it out.

I get 90kh/s on an amd 280x with these settings

cgminer.exe --neoscrypt -I 14 -w 48 -o stratum+tcp://prometheus.phoenixcoin.org:10554 -u

-p x

same settings 3.7.7b, -g 2 -w 48 -I 14, 13.xx drivers

280x hynix= 100khs

have u tried bin files crossed? freshalgo did best when 14.xx created bin at 13.x drivers

tmuir12

says zlib1.dll is missing

Sorrry

Here it is

https://www.dropbox.com/s/y3zdojl5uy7cyvj/zlib1.dll?dl=0

daimyo

I went from 290 to 380-90khs with cisahasa’s config last night!

cisahasa

I went from 290 to 380-90khs with cisahasa’s config last night!

miner stable overnight without any -T options, average 98khs/gpu

daimyo

folks can we do a quick wrap up of what we have had so far?

this is a track record of my progress with the gpu miner

1.

2.

3.The last one is a 4 gpu config -w 48 -I 14 >90 khs/gpu cgminer 3.7.7b

do you think it is good to go already?

yusuf

hi guys

i just hooked up a amd 6950 and i downloaded the cgminer, but when i run it, it just stops working and crashes. I’m using windows 8 64bit. and just updated my drivers to the latest. Could you know why this may be happening?

tmuir12

If you are using catalyst 14.something it won’t work.

Don’t go higher than 13.12

But there may also be win8 issues as I know of atleast one other person running win 8 that is having issues