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    [Dev] NeoScrypt GPU Miner - Public Beta Test

    Technical Development
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    • V
      vehre last edited by

      You can’t be using the latest cgminer 3.7.7b, when thread-concurrency is supported by the neoscrypt kernel. 3.7.7b dropped that support in favour of computing the amount of memory needed itself.

      Note, when scrypt was selected during configure (autogen.sh), then the command-line option will be accepted, but is not used for neoscrypt.

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      • A
        Alpha Wolf last edited by

        @fragilefungi

        My guess is its something to do with Chrome or the amount of memory your system has as for the lag.

        Could also be the use of bandwidth causing the slow down. I use Firefox and play games online while

        mining PXC, but its not a game that’s to demanding “Total Domination” on the video card tho and no real loss to my hash rate either.

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        • F
          fragilefungi last edited by

          OK I just got 3.7.7b up and running. For my command line I used:

          setx DISPLAY 0

          setx GPU_MAX_ALLOC_PERCENT 100

          setx GPU_USE_SYNC_OBJECTS 1

          cgminer.exe --neoscrypt -I 11 -w32 -g 2 -o address -p x

          I am getting 5khash/sec more than the previous version and I am pretty sure there is less lag. Progress!!!

          Can I get some info on the FTC testnet? I am really not liking how the price of PXC is falling and would love to point this over to a FTC neoscrypt pool.

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          • F
            fragilefungi last edited by

            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?

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            • A
              Alpha Wolf last edited by

              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.

              de351f89437d604a6598d097f20b025a.png

              {
"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"
}
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              • ghostlander
                ghostlander Regular Member last edited by

                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.

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                • kris_davison
                  kris_davison last edited by

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

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                  • T
                    tmuir12 Regular Member last edited by

                    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

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                    • D
                      daimyo last edited by

                      folks, can you upload a precompiled 3.7.7b ?

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                      • T
                        tmuir12 Regular Member last edited by

                        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

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                        • C
                          cisahasa last edited by

                          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

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                          • D
                            daimyo last edited by

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

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                            • T
                              tmuir12 Regular Member last edited by

                              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

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                              • D
                                daimyo last edited by

                                says zlib1.dll is missing

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                                • F
                                  fragilefungi last edited by

                                  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.

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                                  • E
                                    einkerl last edited by

                                    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

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                                    • C
                                      cisahasa last edited by

                                      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

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                                      • T
                                        tmuir12 Regular Member last edited by

                                        says zlib1.dll is missing

                                        Sorrry

                                        Here it is

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

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                                        • D
                                          daimyo last edited by

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

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                                          • C
                                            cisahasa last edited by

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

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

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