Bahaabibo
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New Faster EWBF CUDA Zcash Miner for Nvidia GPUs

Tue Apr 03, 2018 1:13 pm

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There is a new miner for Nvidia CUDA GPUs available for mining Zcash (ZEC) promising a slightly faster hashrate than the currently fastest implementation of the NiceHash EQM Zcash NVIDIA miner. The most important thing about this new miner is that it is not limited to only mining on NiceHash, so even with the same speed it is still a nice thing to have as it supports Stratum mining on other mining pools besides NiceHash (it does seem to support NiceHash’s Extranonce Subscribe as well). According to the author of the miner it is designed for Nvidia Pascal GPUs, but should work on older Compute 3.0 or higher Nvidia GPUs with at least 1 GB of video memory. Do note that the miner is not open source and there is only a Windows 64-bit binary release available at the moment, it does not seem to be based on other popular codebase and is not being reported as malicious software by antivirus products. You might still want to have something in mind as the user that posted it on Bitcointalk is a new account and not an established miner developer, even though it seems that the miner does work pretty well.

The EWBF CUDA Zcash Miner has a built-in developer fee that is set at 2%, meaning that every 10 minutes the software will switch to a different pool and mine for the developer some shares and then get back to mining for you. The author of the software claims speeds of about 250 H/s for Nvidia GTX 1070 while the NiceHash EQM miner does currently about 220 H/s on the same GPU. Our quick tests showed a hashrate of about 235-240 H/s average (up to 250 H/s) on stock GTX 1070, so still slightly faster, but not as much as you may want it to… then there is the dev fee as well and it seems that we are seeing somewhat more rejects than, especially when switching to mine for the dev fee. So while this may be an interesting alternative for users willing to mine outside of NiceHash, the actual performance that you may get poolside may not be much different than with what is currently the fastest implementation from NiceHash (taking into account the dev fee and the rejected shares).

Version 0.3.4b (link for download MEGA)
EWBF's Zcash cuda miner.
Expected speeds 500 sols/s gtx 1080, 444 sols/s gtx1070. 300 gtx1060 6G. Stock settings.
Written for pascal gpus but works on cards with at least 1Gb memory, and Compute Capability 2 and higher.
Miner contain dev fee 2%.

Version 0.3.4b
A slightly improved speed of about 2%
Added option --intensity, sets maximum intensity.
Added support for configuration files.
Added option --config, sets the name of the config file.
Added support for failover servers, through config files.
Added new values to the api method getstat.
Added http api you can use http://127.0.0.1:42000/getstat address to get statistics.
Added simple web page with statistics, simply open the api address in the web browser. (Experemental)
Fixed couple of bugs.

Version 0.3.3b (link for download MEGA)

Version 0.3.3b
Added option --pec power efficiency calculator.
Added option --fee developer fee control.
Use miner --help command for more information.


FAQ:
Q: How to select a GPU that will be used by a miner
A: Use option --cuda_devices 0 1 2 digits is id of the devices which will be used.

Q: How intensity works?
A: The miner uses adaptive intensity and tries to use the maximum intensity value, with the help of the --intensity option you can set a limit on the maximum intensity, this will slightly reduce gpu usage and performance. Allowed values 1 - 64. You can set different values for each cards --intensity 64 64 64 64

Q: How to use config?
A: You can run the miner like all previous versions with command line arguments, in this case the config file will be ignored. If you sets the --config argument, the specified config file will be used, all other command line arguments will be ignored. If you run a miner without command line arguments, the miner will try to use the default config file miner.cfg.

Q: How to use failover servers
A: This feature works only with config files, see config examples, supplied with the miner.

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