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    Changing the hashing algorithm

    Technical Development
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    • F
      Flobdeth Regular Member last edited by

      Lizhi, tried__-g 3 ? just out of curiosity, not had a chance to play with it yet. (Note to self: never ask Lizhi mining advice, only financial >:D ) *runs off giggling*

      Question: Is there any leeway under Neo to play around with transaction speeds, without changing block rewards/times, or is there too much risk of security issues with that?

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      • ghostlander
        ghostlander Regular Member last edited by

        ChekaZ, what are the cards delivering 40+ KH/s each?

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        • ?
          A Former User last edited by

          defultsetx DISPLAY 0
          setx GPU_MAX_ALLOC_PERCENT 100
          setx GPU_USE_SYNC_OBJECTS 1

          cgminer.exe --neoscrypt --worksize 256 --thread-concurrency 250 -I 8 --gpu-memclock 1000 --gpu-engine 1000 -o http://pool.ftc-c.com:19328 -u TRsuTqxAMKZNvC7JzGNgvM49rkQNcxqjhi -p x --fix-protocol
          

          A:373 R:5 HW:28 WU:3.7/m @ 4.45Kh/s ~40mins of mining with nVidia GT 630M

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          • lizhi
            lizhi last edited by

            defultsetx DISPLAY 0
            setx GPU_MAX_ALLOC_PERCENT 100
            setx GPU_USE_SYNC_OBJECTS 1
            
            cgminer.exe --neoscrypt --worksize 256 --thread-concurrency 250 -I 8 --gpu-memclock 1000 --gpu-engine 1000 -o http://pool.ftc-c.com:19328 -u TRsuTqxAMKZNvC7JzGNgvM49rkQNcxqjhi -p x --fix-protocol
            

            A:373 R:5 HW:28 WU:3.7/m @ 4.45Kh/s ~40mins of mining with nVidia GT 630M

            OK ,your miner are working.

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            • lizhi
              lizhi last edited by

              ChekaZ, what are the cards delivering 40+ KH/s each?

              AMD R 280X

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              • F
                Flobdeth Regular Member last edited by

                AMD R 280X

                Your card listed?.. https://litecoin.info/Mining_hardware_comparison

                I have to play a lot of trial and error with my cards, the 4 gig 270X’s (they outperform some 280’s with less power, why I went for the 4gigs, algo dependant) aint listed there and tbh, I really cba compiling for the linux box, I’m being lazy, letting the coders code before I poke at the new toys.

                Just throwing this site out there, cause no way a 280 should be running at only 1k 1050 minimum, sure, ramp it up in 5’s from there, till the drivers crash, roll it back 5, start with a standard 1500 memclock

                –gpu-memclock 1070 --gpu-engine 1500

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                • ?
                  A Former User last edited by

                  A:2736 R:25 HW:0 WU:4.2/m @4.44Kh/s

                  No errors. This was running overnight. nVidia GeForce GT 630M

                  defultsetx DISPLAY 0
                  setx GPU_MAX_ALLOC_PERCENT 100
                  setx GPU_USE_SYNC_OBJECTS 1
                  
                  cgminer.exe --neoscrypt --worksize 256 --thread-concurrency 300 -I 8 --gpu-memclock 1000 --gpu-engine 1000 -o http://pool.ftc-c.com:19328 -u TD8nGRpSxHyrw327LR1kJxwsin21GcyDwF -p x --fix-protocol
                  

                  10a29ec34de9412e1e519e51efc8424cdc998d7b

                  Also, Who was this? Spiked to 33,558 h/s

                  a11b3754b61a55dad2ec5f6a4b31f430fddfe3f3

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                  • ?
                    A Former User last edited by

                    What does WU:x mean?

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                    • T
                      tmuir12 Regular Member last edited by

                      NeoscryptGPU.png

                      Gigabyte Gv-R7870C-2GD 7870 PCI-E

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                      • T
                        tmuir12 Regular Member last edited by

                        What does WU:x mean?

                        WU:   The Work Utility defined as the number of diff1 equivalent shares / minute
                        

                        http://bitcoin.stackexchange.com/questions/19260/deciphering-cgminer-interface-in-terminal

                        So I’m guessing the higher the number the more efficient your miner is

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                        • ?
                          A Former User last edited by

                          Ah nice. Cheers.

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                          • lizhi
                            lizhi last edited by

                            Which version Catalyst is best ?

                            my 7850 ,7970 are HW ,not work.

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                            • T
                              tmuir12 Regular Member last edited by

                              I think 13.4 is the best, but 14.4 for me was only 1% or 2% slower so not a huge difference.

                              I was running 8.something and that would crash cgminer.

                              What version are you currently using?

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                              • lizhi
                                lizhi last edited by

                                I use AMD 14.4 Catalyst + SDK 2.9 .

                                Can you mine with AMD 13.4 Catalyst + SDK 2.8 ?

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                                • T
                                  tmuir12 Regular Member last edited by

                                  I could mine with just AMD 13.4, I didn’t have SDK installed at all, although I now have installed SDK 2.9.

                                  I have a Gigagbyte HD7870 GPU, running Windows 7 64 bit

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                                  • F
                                    Flobdeth Regular Member last edited by

                                    There have been known mining issues with 14.4 since release, 13.12 max on windows.

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                                    • lizhi
                                      lizhi last edited by

                                      The best choice:

                                      AMD 13.12 Catalyst + SDK 2.9

                                      AMD 7850 CARD =48Khash/s ;

                                      AMD 7970 CARD =16Khash/s ;

                                      cgminer.exe --neoscrypt --fix-protocol -I 12,12 --worksize 256,384 --thread-concurrency 8192,8192 --shaders 1024,2048 -g 1 -o http://pool.ftc-c.com:19328 -u TRsuTqxAMKZNvC7JzGNgvM49rkQNcxqjhi -p x
                                      

                                      neo105.jpg

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                                      • D
                                        daimyo last edited by

                                        I gave it a try last night on my nVidia 550M, Win7 and I got max 8 khs. Mostly default settings, --worksize 256 -I 13, no overclock. Driver version 294.10 - a bit old

                                        76C gpu temp -> not bad

                                        I think it can reach up to 10 khs with some tweakin

                                        This is what i get with -I 14

                                        Clipboard01.jpg

                                        Limitation of the gpu?

                                        And whats the logic 7850 to perform 3 times faster than 7970?

                                        Do you guys expect the stratum implementation to raise the productivity significantly?

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                                        • T
                                          tmuir12 Regular Member last edited by

                                          Try dropping the intensity I am using 11 on my 7870, on I 12 it drops performance by half, and on 14 I would probably only get around 8 too.

                                          For normal Scrypt I 12 is the sweet spot for me but 11 is required for Neoscrypt

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                                          • kris_davison
                                            kris_davison last edited by

                                            Is there anything special you needed to do to get cgminer working with nvidia?

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