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New cpuminer-multi 1.2-dev Windows Binary With Decred Support

10, Feb 2016

cpuminer-multi-decred

Some people have asked is there is a CPU miner for Decred (DCR), well it turns out there actually is – a version of tpruvot’s cpuminer-multi CPU miner (source) with added support for the Blake-256 14-rounds algorithm used by Decred and support for getwork as the coin does not shave support for stratum for the moment. We have compiled a Windows 64-bit binary for the miner that you can download and try below if you are interested in mining Decred with CPU, although there might not be much point in doing so based on the performance you should expect to bet getting out of the CPU miner. Currently Decred (DCR) has a very high network difficulty and slow block times, so it is not easy to mine with GPU, let alone with CPU. Trying out the CPU miner we are getting around 1.55 MHS per thread on a Intel Core i7 5820K (6 cores 12 threads) for a total of about 18 MHS versus 1.2+ GHS from a GTX 970 or 280X GPU. Still if you want to experiment CPU mining Decred (DCR) you can do so with this miner.

– To download the latest 64-bit Windows binary of the cpuminer-multi fork for Decred (DCR) mining…

New ccMiner Fork from DJM34 With Faster NeoScrypt

24, Jan 2016

ccminer-djm34-neoscrypt

After a crowdfunding effort to accumulate 2.5 BTC from users DJM34 has released a faster open source NeoScrypt kernel (source). Apart from the NeoScrypt the rest is based on the latest ccMiner form from SP version 1.5.78 that uses CUDA 7.5, so it is pretty much useful only if you are mining NeoScrypt-based altcoin. We have compiled a Windows 32-bit binary of the new ccminer djm34 neoscrypt fork with faster NeoScrypt using VS2013 and CUDA 7.5 as well as CUDA 6.5 (two versions available), compatible only with Nvidia Maxwell GPUs (Compute 5.0 and 5.2). Below we have compared the Neoscrypt performance using GTX 970 of this new release with the ccMiner 1.5.74 from SP with CUDA 6.5 and ccMiner 1.5.78 from sp with CUDA 7.5 to see what is the performance gain. Note that the initial ccMiner releases from SP with CUDA 7.5 had brought a significant drop in performance in the NeoScrypt algorithm, so it was best to use 1.5.74 with CUDA 6.5 for NeoScrypt.

NeoScrypt GTX 970 hashrate performance:
– ccMiner 1.5.74 CUDA 6.5 SPMOD fork: 525 KHS
– ccMiner 1.5.78 CUDA 7.5 SPMOD fork: 275 KHS
– ccMiner djm34 neoscrypt 6.5 from djm34: 632 KHS
– ccMiner djm34 neoscrypt 7.5 from djm34: 611 KHS

Note that the comparison with 1.5.78 is with an earlier release that did not include the latest NeoScrypt kernel from djm34, because it seems that SP has integrated it in the latest GitHub code after the code has been released by djm34.

– To download the new ccMiner for Maxwell with faster NeosCrypt by DJM34 for Windows OS…

Updated Windows Binary of the ccMiner 1.5.78-git Fork by SP for Maxwell

3, Jan 2016

ccminer-1-5-78-spmod

New update in the form of a Windows binary compiled from the latest Git source code of the ccMiner 1.5.78-git SP-MOD fork by SP optimized for the latest Maxwell-based video cards (source). The new release comes with more performance improvements for various algorithms under CUDA 7.5 trying to reach the same performance as with CUDA 6.5, the latest CUDA 6.5 release was version 74. Do note that the SP-MOD fork of ccMiner is designed for Nvidia Maxwell GPUs such as the already available GTX 750, 750 Ti as well as the newer GTX 960, GTX 970, GTX 980 and GTX 980 Ti and GTX Titan X. The Windows binary release we have made available here is with support for Compute 5.0 and Compute 5.2 GPUs or with other words only for Maxwell-based Nvidia video cards compiled with CUDA 7.5 and VS2013.

– To download the latest ccMiner for Maxwell version 1.5.78-git by SP for Windows OS…


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