Posts Tagged ‘cryptonight

With the user interest in Monero (XMR) peaking up in the last couple of months it is no wonder that we are now starting to see cloud mining services like Genesis Mining starting to offer cloud contracts for that crypto currency as well. The just announced Monero (XMR) cloud mining offers using the CryptoNight algorithm start at $33.99 USD for 30 H/s, then go for $999 USD for 900 H/s and $2899 USD for 2700 H/s as well as come with an option for any custom hashrate of course. The XMR cloud mining contracts are for 2 year period of time with all costs included in the price of the hahsrate, so no need to pay any extra maintenance fees or anything else for the duration of the mining contract. You can also use our special discount code CryptoMiningBlog5 to get some extra discount and get even better price should you decide to purchase an Monero cloud mining contract from the company. As usual with cloud mining offers, do the math first and the decide should you take up an offer or not.

For more information about the new Monero (XMR) cloud mining offers from Genesis Mining…

The development of some of the ccMiner forks for Nvidia GPU miners didn’t seem very active visually in the last couple of months, especially with coins such as ZCash (ZEC) that came with their own miner releases, but it hasn’t been stopped. A few days ago tpruvot has made a pre-release version of his new ccMiner 2.0 available (source) for people interested in checking it out with probably a few small things left to be ironed out before the final 2.0 release is made available. So if you are using Nvidia GPUs to mine crypto coins then you might want to give it a try and don’t forget to send a tip to your local friendly ccMiner developer for a beer or two to show your support.

ccMiner 2.0 RC2 changelog:
– Handle cryptonight, wildkeccak and cryptonight-lite
– Add a series of new algorithms: timetravel, bastion, hmq1725, sha256t
– Import lyra2z from djm34 work…
– Rework the common skein512 (used in most algos except skein ;)
– Upgrade whirlpool algo with alexis version (2x faster)
– Store the share diff of second nonce(s) in most algos
– Hardware monitoring thread to get more accurate power readings
– Small changes for the quiet mode & max-log-rate to reduce logs noise
– Blake2s fix, variant built with CUDA 6.5 (not usable for lbry)

Do note that this release may not contain the best optimizations and fastest performance on all of the supported algorithms, so depending on what you are currently mining you may need to stick to another faster fork of ccMiner or not. Also the CUDA 6.5 binary release does not work for LBRY mining as noted in the changelog, so either use the 8.0 release or compile with 7.5 for mining that coin.

To download the latest official ccMiner 2.0 RC2 Windows binaries (32/64-bit)…

The enterprise segment is constantly upgrading their hardware and this fuels the second hand market with interesting and very affordable yet pretty powerful hardware that can also be used for crypto mining. The latest wave of hardware getting replaced and available at a really affordable prices are the first generation of Intel 2011 E5 dual CPU Xeon workstations and servers. This means that you are able to easily acquire a very nicely priced second had server system with two 8-core processors such as Intel Xeon E5-2650 v1 getting 16 physical or 32 logical cores with Hyper Threading. The big question here however is if systems like that that may be acquired cheap are really worth using for crypto mining as they only come with a lot of CPU power, but no GPU capable of being used for mining as for server needs not much GPU power is required generally. We have picked up one such cheap systems off eBay with dual Xeon E5-2650 processors and put it through some benchmarks to gent a better idea on what to expect…

Currently it seems that the only worthwhile CPU-based algorithm to check is the CryptoNight and using the what seems to be the fastest CPU software available at the moment – the XMR-Stak CPU Miner for Monero (XMR). Running the XMR-Stak miner on all 32 logical cores has managed to get us an average hashrate of about 523 HS (hashes per second). The result may not seem that bad for CPU mining, considering that it is a bit slower than a single high-end GPU and the power used by the system is about 150 Watts, so again similar to a more recent higher-end GPU.

We need to run the numbers through an XMR mining calculator and doing just that on Cryptocompare shows that we are actually going to be mining with profit, but the profit isn’t going to be that much. With the current rate it would take a couple of years just to earn back what we have paid for the hardware itself. Not very interesting to CPU mine with such a system, but this is just at the moment, with some new and interesting developments for coins that are only CPU mineable appearing things might look very different… especially if you get a couple of these dual CPU systems to have handy. For the moment however you might want to check them out if you have some other computational needs than crypto mining as the price they can be acquired for is really attractive and again they are still pretty powerful as far as CPU performance goes.