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    Changing the hashing algorithm

    Technical Development
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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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      • D
        daimyo last edited by

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

        absolutely nothing… works right outta the box. I am curious to see what a decent desktop nvidia could do

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        • L
          Lukey_p last edited by

          i have a GTX780Ti clocked at 1Ghz i could give a bash?

          Anywhere i should get all the files from? Thanks

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          • kris_davison
            kris_davison last edited by

            ive got three 750ti cards in a rig at home I may have a try and get this miner up and running with them.

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            • Wellenreiter
              Wellenreiter Moderators last edited by

              I have one 750Ti and get about 35khash reported by the miner with default settings, just I=10
              If I set intensity to a higher value, hw errors increase.
              By the way, the pool reports about 24 khash only, but no errors.

              Some hashes ‘lost in transit’? ;)

              Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
              Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

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              • D
                daimyo last edited by

                Wellenreiter, do we need external help with the stratum? Do you think it would increase productivity?

                I can get my 550M to work up to I-13 without HW. -I 12 and -I 13 make little difference tho.

                I hate to say it but it seems the 7850 has the edge over 750ti productivty wise while at same price… :( Tho I am not sure if lizhi had aggressive overclock or its just too hot in China :D - 86C

                What temps are you getting with the 750ti ? Have you tried I-13 ?

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                • lizhi
                  lizhi 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?

                  cgminer say “Maximun buffer memory device 0 supports says 536870912”

                  Please reduce the thread-concurrency

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                  • kris_davison
                    kris_davison last edited by

                    750ti are less power hungry tho?

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                    • F
                      Flobdeth Regular Member last edited by

                      does -g 3 -I 17 work, or throwing back HW errors, anyone tried those settings?

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                      • lizhi
                        lizhi last edited by

                        does -g 3 -I 17 work, or throwing back HW errors, anyone tried those settings?

                        -g 1 -I 13

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                        • D
                          daimyo last edited by

                          -g 2, 3 crashes the miner here

                          lizhi, you are correct. High tread concurrency was the cause

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                          • Wellenreiter
                            Wellenreiter Moderators last edited by

                            Wellenreiter, do we need external help with the stratum? Do you think it would increase productivity?

                            I can get my 550M to work up to I-13 without HW. -I 12 and -I 13 make little difference tho.

                            I hate to say it but it seems the 7850 has the edge over 750ti productivty wise while at same price… :( Tho I am not sure if lizhi had aggressive overclock or its just too hot in China :D - 86C

                            What temps are you getting with the 750ti ? Have you tried I-13 ?

                            Help with stratum would be really appreciated. My actual code is on github: https://github.com/wellenreiter01/p2pool-neoscrypt

                            I can add anybody to the repository who want to help.

                            I tested with minerd from Ghostlander and the hash calculated by the pool is always 2 byte too long when using stratum. Longpoll works fine.

                            Didn’t check my GPU temp, as the fans are running low speed it can’t be too high.

                            The NVIDIA cards are slower than the AMD card with opencl based miners.

                            I hope for Cudaminer to be adapted.

                            That should boost the performance of the cards.

                            Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
                            Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

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                            • AmDD
                              AmDD Regular Member last edited by

                              You all keep mentioning Nvidia cards. Is neo better run on those or is AMD still dominant? I ask because I have 3 rigs full of 7950’s that Im holding off on selling to mine feather once the algo is changed. :)

                              I want to setup one on the test pool this weekend if I have time.

                              P2Pool Node: http://104.236.34.9:19327/ 0.5% fee

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                              • kris_davison
                                kris_davison last edited by

                                The openCl gpu miner seems to run better on nvidia cards but if/when there is a cudaminer (nvidia specific) they should be pretty even. Nvidia cards generally use less power and are not as hot but you don’t get as high a hashrate so its swings and roundabouts really.

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                                • D
                                  daimyo last edited by

                                  folks, check this out https://github.com/ahmedbodi/stratum-mining-multialgo it claims to support stratum for neoscrypt

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                                  • Wellenreiter
                                    Wellenreiter Moderators last edited by

                                    unfortunately this can’t be adapted easily to p2pool.

                                    Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
                                    Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

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                                    • E
                                      Edosterman last edited by

                                      Where is the source for this. Love to help.

                                      I have a bunch of GPS’s i can throw at this.

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                                      • E
                                        Edosterman last edited by

                                        that would be GPUs not GPSs

                                        sigh

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                                        • E
                                          Edosterman last edited by

                                          folks, check this out https://github.com/ahmedbodi/stratum-mining-multialgo it claims to support stratum for neoscrypt

                                          this has not been modified in months

                                          only looks like cpu neoscyrpt at best.

                                          other cpu miners available if wanted .

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                                          • lizhi
                                            lizhi last edited by

                                            I had pushed it in http://www.ftc-c.com/pack/testnet.rar

                                            please download it ,test it

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