Bminer is a highly optimized cryptocurrency miner that runs on modern AMD / NVIDIA GPUs. Bminer is one of the fastest publicly available miners today -- we use various techniques including tiling and pipelining to realize the full potentials of the hardware.
Bminer supports the following options in the command line. You can also run bminer -help to get the full list of options.
Option
Default Description
-api string null The endpoint that Bminer serves its REST API. For example, 127.0.0.1:1880. The REST API is disabled if it is unspecified.
-devices value null List of GPU devices that Bminer should run on. If it is unspecified bminer runs on all CUDA devices available on the system.
-failover value immediateNext Fail-over strategy between multiple pools. Bminer can retry the connection, failover to the next pool or a pool that is randomly chosen in the lists of available pools. Supported strategies are sameHost, immediateNext and random.
-gpucheck uint 90 The interval in seconds that Bminer polls whether the CUDA devices have hung. Set to 0 to disable the checks.
-logfile string null Append the logs to the file.
-max-network-failures -1 Number of consecutive attempts that Bminer tries to recover from network failures. Set to -1 to keep on recovering.
-max-temperature int 85 Hard limits of the temperature of the GPUs. BMiner slows down itself when the temperautres of the devices exceed the limits.
-no-runtime-info Disable runtime information collection for Bminer.
-no-timestamps Remove timestamp in your logging messages.
-nofee Disable the devfee but it also disables some optimizations.
-pers BgoldPoW Personalization string for Equihash 144,5 based coins. Can be set to auto.
-share-check 900 The interval of seconds that Bminer polls to ensure there are accepted shares. Set to 0 to disable the checks.
-strict-secure Verify the certificates of servers when connecting to a SSL-enabled Stratum server. The default is off.
-uri value List of comma-separated URIs that bminer should mine towards. URI has a format of <scheme>://<username>[:<password>]@<host>:<port>. Note that the <scheme> for all the URIs have to be the same.
-uri2 value List of comma-separated URIs that bminer should mine towards secondarily. It has the format of <scheme>://<username>[:<password>]@<host>:<port>. Currently Bminer supports scheme blake14r:// or blake2s:// as secondary for Ethash mining as primary.
-dual-subsolver int -1 The sub-solver for dual mining. Valid values are 0, 1, 2, 3. Default is -1, which is to tune automatically.
-dual-intensity int 0 The intensity of the secondary mining. Valid values are from 0 to 300. Default is 0, which is to tune automatically.
-intensity 6 The CPU intensity of mining AE / Grin. Valid values are from 0 to 12.
-watchdog true Automatic restart to recover from hung GPUs. Bminer exits itself in case of errors if watchdog is disabled.
-version Output version and exit.
Bminer uses URIs to identify the mining pool and the account of the pool. The URIs has the format of ://[:]@:. Following RFC 3986, the scheme specifies both the proof-of-work (PoW) algorithm and the networking protocol. Bminer supports mining coins using the following PoW algorithm and protocols:
PoW algorithm Networking protocol Scheme
* Equihash Stratum stratum://
* Equihash Stratum over SSL stratum+ssl://
* Equihash 144,5 Stratum equihash1445://
* Equihash 144,5 Stratum over SSL equihash1445+ssl://
* Zhash Stratum zhash://
* Zhash Stratum over SSL zhash+ssl://
* Ethash Stratum ethash://
* Ethash Stratum over SSL ethash+ssl://
* Ethash Ethereum Proxy ethproxy://
* Ethash Ethereum Stratum ethstratum://
* Blake14r (secondary) Stratum blake14r://
* Blake2s (secondary) Stratum blake2s://
Bminer also supports failing over between multiple pools in case of network failures. To enable the feature, you can pass a lists of URIs that are separate by commas. For example, the following command
./bminer -uri stratum://t1ZBtpkUy1y1deYsNJnzdW4tk7HiJEcfUzr.worker@eu1-zcash.flypool.org:3333,
stratum://t1ZBtpkUy1y1deYsNJnzdW4tk7HiJEcfUzr.worker@zec-eu1.nanopool.org:6666
will instruct Bminer to mine Zcash over both Flypool and Nanopool.
Bminer supports mining Equihash-based coins (e.g., BitcoinGold, BitcoinZ) with 2% of devfee.
Bminer supports mining Ethash-based coins (e.g., Ethereum) with 0.65% of devfee. It is also possible to dual mine Ethash and Blake14r-based / Blake2s-based coins, where the devfee is 1.3%.
Bminer supports mining Bytom (BTM) with 2% of devfee.
Bminer supports mining Grin (GRIN) with 1% of devfee.
Fast and efficient
Bminer is one of the fastest miner on a number of algorithms.
Secure and reliable
SSL support
Automatic reconnects to recover from transient network failures
Automatic restarts if GPUs hang
Operation friendly
Comes with REST APIs to facilitate large-scale production deployments