Posts Tagged ‘Grin

The latest update of the AMD GPU miner lolMiner 0.8 brings support for the Cuckatoo 31 algorithm used by Grin, for GPUs with either 4GB and 8GB video memory (lower memory mens less performance) for Windows and Linux. To mine with the new algorithm you need to use the parameter --coin GRIN-AT31, NiceHash does not currently seem to be supported for C31 though. It is interesting to note that the Grin cycle finding is completely done on the GPU, so the miner has almost zero CPU load (on AMD, Nvidia has some due to OpenCL back end). Aside from Cuckatoo 31 support the new version also has some Stratum bug fixes (NiceHash) for Equihash 144/5, 192/7 and 96/5, improved general stability of the miner as well as added distinct 1GB, 3GB and 4GB as well as 6GB and 8GB kernel for mining MNX for Windows (the Linux version that already implemented had this in 0.7.1).

We remind you that lolMiner is a closed source OpenCL GPU miner available for Windows and Linux as pre-compiled binaries only and that there is a developer fee for using the software (1% for all supported algorithms). It might work on Nvidia with OpenCL, however stability and performance might not be optimal, so it is best for use with AMD GPUs.

To download and try the latest lolMiner 0.8 OpenCL miner for Windows or Linux…

The latest Bminer 15.5.0 comes with another interesting dual-mining feature that has attracted our attention, namely dual-mining Ethereum (ETH) and VeriBlock (VBK), meaning that you can mine any Ethash coin together with the vBlake2 algorithm used by VBK. The new version also comes with improved performance of the Cuckatoo31 algorithm and added parameter -version to output the current miner version and exit.

What we were most interested in the new version was the support for VBK (no standalone support for the algorithm yet), so only dual mining Ethash and VBK for now. We wanted to see what performance we can expect in this dual mode from VBK as we already know what to expect regarding Ethash hashrate. Unfortunately it seems that VBK support really does need some more work as the miner is somewhat unstable when dual mining and crashes from time to time and results are also erratic. With OhGodAnETHlargementPill running we were not getting any accepted shares for VBK, only stales, and with the Pill software not running it seems that VBlake2 shares are properly submitted. It is hard to understand however what is the exact hashrate for each of the two algorithms when dual mining, so more work is required on that new feature apparently.

We remind you that that Bminer is a closed source Nvidia GPU miner available for Linux and Windows in the form of pre-compiled binaries and that there is a 2% development fee for Grin, Beam, Bytom (BTM), Equihash and Zhash coins, 0.65% for Ethash and 1.3% for dual mining Ethash and Blake.

To download and try the latest release of the Bminer 15.5.0 Nvidia GPU miner…

Obelisk has started with SIA and Decred ASIC miners with a bit of controversy back in 2017, and now they are apparently planning to extend their offers with new GRIN ASIC miners for later this year as it seems this is the new hot thing for ASIC miners – the GRIN’s Cuckatoo31 algorithm. The company has announced the start of a pre-sale for their new GRN1 miner that comes in three form factors: a traditional form factor (GRN1), compact form factor (GRN1 Mini), and an immersion form factor (GRN1 Immersion). The Obelisk GRN1 miners are designed for Grin’s Cuckatoo31+ hashing algorithm and they will NOT Work on the existing Cuckaroo29+ or future Cuckatoo32+ algorithm implementations.

Obelisk will be manufacturing a maximum of 2,500 GRN1 units (60,000 chips), available in first-come, first-serve fashion. GRN1 Mini units count as 1/6th, and GRN1 Immersion units count as 2. Only 2,000 GRN1 units are available in this sale. The remaining 500 will be sold by Obelisk at market-price when production is completed in October. This sale will close on May 3, 2019. Obelisk expects to ship orders in October 2019. Below you can find the estimated specifications and prices for the upcoming ASIC miners… as you can see the prices are pretty steep, though the hashrate they deliver currently is quite profitable, but who knows what will happen by the time you get the hardware in your hands. As usual with any pre-orders and specifications announced prior to actual products in existence you should be extra careful as very often the final specs are not the same as initially announced, meaning that you could easily get lower hashrate and/or higher power consumption. Though there are cases that the final specs may be better then initially announced as well, you should still proceed with caution and also check other alternatives such as the upcoming GRIN ASIC miner from Innosilicon.

– Price: $2,000
– Estimated Performance: 70 GPS, 400 W
– Estimated Dimensions: TBD
– Coupon: 25% off any GRN2 order (save up to $500 total, one coupon per order)
– Donation: $100 to Grin development.
Check the current profitability of GRN1 MINI at Apanel…

– Price: $10,000
– Estimated Performance: 420 GPS, 2200 W
– Estimated Dimensions: 135mm wide x 170mm tall x 400mm deep
– Coupon: 25% off any GRN2 order (save up to $2,500 total, one coupon per order)
– Donation: $500 to Grin development.
Check the current profitability of GRN1 at Apanel…

– Price: $20,000
– Estimated Performance: 840+ GPS, 4400 W
– Estimated Dimensions: 1U server form factor
– Coupon: 25% off any GRN2 order (save up to $5,000 total, one coupon per order)
– Donation: $1,000 to Grin development.
Check the current profitability of GRN1 IMMERSION at Apanel…