Post
Topic
Board Mining (Altcoins)
Re: CCminer(SP-MOD) Modded NVIDIA Maxwell kernels.
by
qaaq
on 02/11/2015, 12:15:10 UTC
I have windows 8.1 and titan x
Now I updated to latest version sp ccminer 1.5.72-git from http://cryptomining-blog.com/6189-updated-windows-binary-of-the-ccminer-1-5-72-git-fork-by-sp-for-maxwell/
And updated my cuda to version 7.5.18
Now the hashrate appears to be bigger but now it says "reject reason: duplicate share" please help  Cry

Use cuda 6.5. This fork is made for cuda 6.5 and not 7.5.

(But cuda is only needed if you are building yourself) If you run the exe, you just need the latest drivers.


in the ccminer.cpp file, try to move the case ALGO_SKEIN above the minmax = 0x70000000U and recompile.

if (max64 < minmax) {
         switch (opt_algo) {
         case ALGO_KECCAK:
         case ALGO_BLAKECOIN:
         case ALGO_BLAKE:
         case ALGO_PENTABLAKE:
         case ALGO_WHC:
         case ALGO_SKEIN:
            minmax = 0x70000000U;
            break;
         case ALGO_BITCOIN:
         case ALGO_WHCX:
         case ALGO_QUBIT:
         case ALGO_QUARK:
         case ALGO_LYRA2v2:
            minmax = 0x40000000U;
            break;

In myr-groestl try to run with --diff 0.00390625


on your latest release72 mining skein on pools gives a lot of rejects, tried different diffs:

http://imgur.com/EiDjINp

i also tried it on tpruvot and it seems to be ok:

http://imgur.com/ofKpcSh