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T-Rex NVIDIA GPU miner (Ethash / Etchash / Autolykos2 / Kawpow / Blake3 / Octopus / Firopow) Overview

T-Rex is a versatile cryptocurrency mining software. It supports a variety of algorithms and we, as developers, are trying to do our best to make it as fast and as convenient to use as possible.

Developer fee is 1% (2% for Octopus, Autolykos2, and their dual mining modes).

FAQ

See https://github.com/trexminer/T-Rex/wiki/FAQ

Usage

Full list of command line options:

-a, --algo Specify the hash algorithm to use. autolykos2 blake3 etchash ethash firopow kawpow mtp mtp-tcr multi octopus progpow progpow-veil progpow-veriblock progpowz tensority --coin Set coin name. Helps avoid DAG rebuilds when switching back from a dev fee session. Example: "etc" for Ethereum Classic, "etc+zil" for Ethereum Classic + Zilliqa mining. --extra-dag-epoch Allocate extra DAG at GPU for specified epoch. Can be useful for dual mining of coins like Zilliqa (ZIL). (eg: --extra-dag-epoch 0) Can be set for each GPU separately by using comma separated list of values (set to -1 for the GPUs that should not allocate the extra DAG). --nonce-start [Ethash, ProgPOW] Starting nonce for the solution search. --nonce-range-size [Ethash, ProgPOW] Nonce range size for nonce search. The range will be split between all devices. -d, --devices Comma separated list of CUDA devices to use. Device IDs start counting from 0. --ab-indexing Afterburner indexing (same as default but starts from 1). --devices-info Print list of available CUDA compatible devices in the system. -i, --intensity GPU intensity 8-25 (default: auto). Controls the GPU workload size, in other words how many nonces the miner is processing "in one go": N = 2 ^ intensity --low-load Low load mode (default: 0). 1 - enabled, 0 - disabled. Reduces the load on the GPUs if possible. Can be set to a comma separated string to enable the mode for a subset of the GPU list (eg: --low-load 0,0,1,0) --dual-algo Second algorithm to use in dual mining mode. --dual-algo-mode Controls GPU behaviour in dual mining mode (default: a12). Format: : "" can be one of: "a1" (first algorithm), "a2" (second algorithm), "a12" (both - dual mining) "" is optional, and can be either "rXX" ("dual ratio" coefficient set to XX), or "rXX:lrYY" ("dual ratio" coefficient set to XX, "LHR dual ratio" coefficient set to YY), or "hXX" (primary algo hashrate percentage XX). See dual mining guide for more details. --profit-per-mh Estimated profitability of the algorithms in dual mining mode per 1MH of hashrate. Used for fine-tuning algo1/algo2 proportion, the miner will try to maximise the earnings. Format: :. Example: --profit-per-mh 0.0516:0.0012 --lhr-tune [Ethash, Autolykos2] LHR tuning value that indicates the percentage of the full speed the miner tries to achieve for LHR cards (default: -1). Range from 10 to 95. -1 - auto 0 - disabled (use for non-LHR cards) 74 - recommended starting value for most LHR cards in low power mode (see --lhr-low-power) 78 - recommended starting value for most LHR cards Can be set for each GPU separately, e.g. "lhr-tune": "0,0,77.5,0" - this will set LHR tuning value to 77.5 for the third GPU. --lhr-autotune-mode [Ethash, Autolykos2] LHR auto-tune mode (default: down). Valid values: off - auto-tune is disabled. LHR tune value is fixed during mining, and will not change no matter how often LHR lock is detected down - LHR tune value will decrease if the miner detects LHR lock full - same as "down" but additionally miner will be trying to increase LHR tune value if it's stable on the current LHR tune level --lhr-autotune-step-size LHR auto-tune step size (default: 0.1). Indicates by how much LHR tune value is changed by the LHR auto-tuner. --lhr-autotune-interval LHR auto-tune time interval in minutes (default: 5:120). Format: :. "" is the period of time in minutes the GPU must be mining without hitting LHR locks before the miner attempts to increase the LHR tune value. If the GPU has tripped LHR, LHR tune value will not decrease if the previous LHR lock was detected more than "" minutes ago. --lhr-low-power [Ethash] Reduces power consumption in LHR mode at a cost of a slightly lower hashrate (default: 0). 1 - enabled, 0 - disabled. Can be set to a comma separated string to enable the mode for a subset of the GPUs (eg: --lhr-low-power 0,0,1,0) --kernel [Ethash] Choose CUDA kernel (default: 0). Range from 0 to 5. Set to 0 to enable auto-tuning: the miner will benchmark each kernel and select the fastest. Can be set to a comma separated list to apply different values to different cards. (eg: --kernel 2,1,1,3) The support for this parameter may later be extended to cover other algorithms. --gpu-init-mode Enables DAG sequential initialization (default: 0). 0 - all GPUs are initialized in parallel 1 - fully sequential initialization, one GPU at a time 2 - two GPUs at a time etc. --dag-build-mode [Ethash, ProgPOW, Octopus] Controls how DAG is built (default: 0). 0 - auto (miner will choose the most appropriate mode based on the GPU model) 1 - default (suitable for most graphics cards) 2 - recommended for 30xx cards to prevent invalid shares Can be set to a comma separated list to apply different values to different cards. (eg: --dag-build-mode 1,1,2,1) --dataset-mode [Autolykos2] Dataset mode. (default: 2). Valid values: 0 - auto (defaults to 2) 1 - single (each ERGO block the GPU stops hashing until it generates the dataset) 2 - double (the miner generates the dataset for the next ERGO block before it arrives with a small penalty to reported hashrate, and when the next block does arrive, it immediately starts hashing without losing 1-4 seconds on creating the dataset). Memory requirements are doubled in this mode as the GPU has to hold two memory buffers. If there is not enough memory on the GPU for two datasets, the miner will fall back to single buffer mode. --keep-gpu-busy Continue mining even in case of pool connection loss. Useful when a GPU crashes during start/stop cycle that occurs when internet connection goes down. -o, --url URL of the mining pool in the following format: ://: Supported schemes: stratum+tcp stratum+ssl stratum+http stratum2+tcp stratum2+ssl stratum2 is normally used by Nicehash, MiningPoolHub and other similar mining pools Example: stratum+tcp://eu1.ethermine.org:4444 stratum+ssl://zcoin.mintpond.com:3005 stratum2+tcp://daggerhashimoto.hk.nicehash.com:3353 --url2 URL of a second mining pool used for second algo in dual mining mode. -u, --user Username for mining server. --user2 Username for mining server used for second algo in dual mining mode. -p, --pass Password for mining server. --pass2 Password for mining server used for second algo in dual mining mode. -w, --worker Worker name. --worker2 Worker name for mining server used for second algo in dual mining mode. --proxy IP:port for connection via SOCKS5 proxy server. Domain names are resolved through the proxy too. --dns-https-server IP:port for DNS server working via DNS-over-HTTPS. -r, --retries Number of times to retry if a network call fails. -R, --retry-pause Pause in seconds between retries. -T, --timeout Network timeout, in seconds (default: 300) --time-limit Miner shutdown interval in seconds. (default: 0 - disabled) --temperature-color Set core temperature color for GPUs stat. Example: 55,65 - it means that temperatures above 55 will have yellow color, above 65 - red color. (default: 67,77) --temperature-color-mem Set memory temperature color for GPUs stat. (default: 80,100) --temperature-limit GPU shutdown core temperature. (default: 0 - disabled) --temperature-start GPU core temperature to enable card after disable. (default: 0 - disabled) --api-bind-http IP:port for the miner API via HTTP (default: 127.0.0.1:4067). Set to 0 to disable. For external access set IP to 0.0.0.0, in which case setting "--api-read-only" is recommended as well. --api-https Enable https protocol for API calls. --api-key Pre-generated authorization key for API calls. Use "--api-generate-key" to generate it. Mandatory for allowing modify/update API calls. --api-read-only Allow only read operations for API calls. Enabled by default if "--api-key" isn't set. --api-generate-key Generate API key from user-defined password. The output key is used as a value for "--api-key". Use this option along with "-c" to write api-key directly into your config file. --api-webserver-cert Full path to API web server certificate file. --api-webserver-pkey Full path to API web server private key file. -N, --hashrate-avr Sliding window length in seconds used to compute average hashrate (default: 60, max: 86400). --sharerate-avr Sliding window length in seconds used to compute sharerate (default: 600). --gpu-report-interval GPU stats report frequency. Minimum is 5 sec. (default: 30 sec) --gpu-report-interval-s GPU stats report frequency in shares. 0 by default (disabled). -q, --quiet Quiet mode. No GPU stats at all. --hide-date Don't show date in console. --send-stales Don't drop stale shares. --validate-shares Validate shares before sending to a pool. Also enables share diff info. --no-color Disable color output for console. --no-hashrate-report Disable hashrate report to pool. --no-new-block-info Don't print new block info in console. --no-nvml Disable NVML GPU stats. --no-strict-ssl Disable certificate validation for SSL connections. --no-sni Disable setting SNI header for SSL connections. --no-watchdog Disable built-in watchdog. --watchdog-exit-mode Specifies the action "A" the watchdog should take if the miner gets restarted "N" times within "M" minutes. Format: N:M:A. Valid values: N: any positive integer, M: any positive integer, A: r(system reboot), s(system shutdown), e(miner exit) Actions "r" and "s" require running the miner with administrative privileges. Examples: 20:10:s - watchdog will shutdown the system if the miner gets restarted 20 times within any 10 minute interval 5:7:r - watchdog will reboot the system if the miner gets restarted 5 times within any 7 minute interval -B, --benchmark Benchmark mode. --benchmark-epoch Epoch number used during benchmark (default: 0). Only applicable to DAG based algorithms except ProgPOW family. --benchmark-block Block number used during benchmark (default: 0). Only applicable for ProgPOW family of algorithms. -P, --protocol-dump User protocol logging. -c, --config Load a JSON-format configuration file. -l, --log-path Full path of the log file. --cpu-priority Set process priority (default: 2) 0 idle, 2 normal to 5 highest. --autoupdate Perform auto update whenever a newer version of the miner is available. --back-to-main-pool-sec Forces miner to switch back to main pool in case working with failover pool. Parameter is set in seconds. (default: 600) --exit-on-cuda-error Forces miner to immediately exit on CUDA error. --exit-on-connection-lost Forces miner to immediately exit on connection lost. --exit-on-high-power Forces miner to immediately exit on high power consumption. (eg: --exit-on-high-power 600 - exit in case of total power consumption exceeds 600W) --reconnect-on-fail-shares Forces miner to immediately reconnect to pool on N successively failed shares (default: 10). --fork-at Forces miner to change algorithm on predefined condition (works only with built-in watchdog enabled) Epoch condition: =epoch: (eg: --fork-at etchash=epoch:390). Block condition: =block: (eg: --fork-at x16rv2=block:6526421). Time condition: =time:. Time must be set in UTC+0. (eg: --fork-at firopow=time:2021-10-26T06:00:00). To change main pool port you must write it right after algo: : (eg: --fork-at x16rv2:4081=time:2019-10-01T16:00:00). --------------------- Arbitrary script execution ------------------------ -- (scripts must be located in the same directory as t-rex executable) -- ------------------------------------------------------------------------- --script-start Executes user script right after miner start (eg: --script-start script_filename) --script-exit Executes user script right before miner exit. --script-epoch-change Executes user script on epoch change. --script-crash Executes user script in case of miner crash. --script-low-hash Executes user script in case of low hash. Hash threshold is set in MegaHashes/second. Example: --script-low-hash script_to_activate:50 (activates "script_to_activate" script once total hashrate drops to 50MH/s) -------------------- GPU fine tuning (Windows & Linux) ------------------ --pl Sets GPU power limit (Windows - in percent, Linux - in Watts) Requires running the miner with administrative privileges. --lock-cclock Specifies desired locked GPU core clock speed in MHz. (default: 0 - disabled). Requires running the miner with administrative privileges. Example: --lock-cclock 1000 (applies clock 1000Mhz to all cards that support this functionality) --lock-cclock 1000,1300,0 (applies clock 1000Mhz to GPU #0, 1300MHz to GPU #1, ignore GPU #2) --mt Memory tweak mode (default: 0 - disabled). Range from 0 to 6. General recommendation is to start with 1, and then increase only if the GPU is stable. The effect is similar to that of ETHlargementPill. Supported on Pascal GPUs with GDDR5 or GDDR5X memory only. Requires running the miner with administrative privileges. Can be set to a comma separated list to apply different values to different cards. Example: --mt 4 (applies tweak mode #4 to all cards that support this functionality) --mt 3,3,3,0 (applies tweak mode #3 to all cards except the last one) -------------------- GPU fine tuning (Windows only) --------------------- All options can be set to a comma separated list to apply different values to different cards. (default value for all options: 0 - not used) --fan Sets GPU fan speed in percent or target temperature (auto-fan). Valid formats: --fan N (where N is the fan speed) --fan t:N (where N is the target core temperature) --fan t:N[F1-F2] (same as above, but with the fan speed constrained by [F1%, F2%] range) --fan tm:N (where N is the target memory temperature) --fan tm:N[F1-F2] (same as above, but with the fan speed constrained by [F1%, F2%] range) Example: --fan 45,t:67,tm:95,t:69[45-100],tm:90[50-95] which translates to GPU #0: set fan speed to 45% GPU #1: maintain GPU core temperature at 67C GPU #2: maintain GPU memory temperature at 95C GPU #3: maintain GPU core temperature at 69C with the fan speed limited to [45%, 100%] range GPU #4: maintain GPU memory temperature at 90C with the fan speed limited to [50%, 95%] range Note: fan speeds are limited to [0%, 100%] range in auto-fan mode by default. --cclock Sets GPU core clock offset in MHz. Requires running the miner with administrative privileges. Will be set to 0 on exit and during DAG rebuild. --mclock Sets GPU memory clock offset in MHz. Requires running the miner with administrative privileges. Will be set to 0 on exit and during DAG rebuild. --cv Sets GPU core voltage in percent. Must be within [0, 100] range. Use it only in case you know what you are doing! Requires running the miner with administrative privileges. --lock-cv Specifies desired GPU core voltage in mV. (default: 0 - disabled). Requires running the miner with administrative privileges. --pstate Sets GPU P-state. Valid values: p0. Requires running the miner with administrative privileges. ------------------------------------------------------------------------- --version Display version information and exit. -h, --help Display this help text and exit. Examples ETHW+ALPH t-rex -a ethash --dual-algo blake3 -o stratum+tcp://ethw.2miners.com:2020 -u 0x4121c43205D4244cb6395B2318d711a73fc1a6DE -p x -w rig0 --url2 stratum+tcp://de.alephium.herominers.com:1199 --user2 1qUuxVuXN2Pk4nnYTbL4qihjLWyRkVMQVYQDAajCcuPq --pass2 x ETC+ALPH t-rex -a etchash --dual-algo blake3 -o stratum+tcp://etc.2miners.com:1010 -u 0x0924EF9ecBcC1287047cAFd2EAD3A133313eE6A2 -p x -w rig0 --url2 stratum+tcp://de.alephium.herominers.com:1199 --user2 1qUuxVuXN2Pk4nnYTbL4qihjLWyRkVMQVYQDAajCcuPq --pass2 x ERGO-nanopool t-rex -a autolykos2 -o stratum+tcp://ergo-eu1.nanopool.org:11111 -u 9gpNWA3LVic14cMmWHmKGZyiGqrxPaSEvGsdyt7jt2DDAWDQyc9.rig0/[email protected] -p x ERGO-herominers t-rex -a autolykos2 -o stratum+tcp://de.ergo.herominers.com:1180 -u 9gpNWA3LVic14cMmWHmKGZyiGqrxPaSEvGsdyt7jt2DDAWDQyc9.rig0 -p x ERGO-woolypooly t-rex -a autolykos2 -o stratum+tcp://pool.woolypooly.com:3100 -u 9gpNWA3LVic14cMmWHmKGZyiGqrxPaSEvGsdyt7jt2DDAWDQyc9.rig0 -p x ERGO-2miners t-rex -a autolykos2 -o stratum+tcp://erg.2miners.com:8888 -u 9gpNWA3LVic14cMmWHmKGZyiGqrxPaSEvGsdyt7jt2DDAWDQyc9.rig0 -p x ETHW+ZIL-ezil t-rex -a ethash --coin eth+zil -o stratum+tcp://ethw.2miners.com:2020 -u 0x4121c43205D4244cb6395B2318d711a73fc1a6DE --url2 stratum+tcp://eu.ezil.me:4444 --user2 0x4121c43205D4244cb6395B2318d711a73fc1a6DE.zil1yn92lnkkfsn0s2hlvfdmz6y2yhpqm98vng38s9.WORKER --extra-dag-epoch 0 ETC+ZIL-ezil t-rex -a etchash --coin etc+zil -o stratum+tcp://eu1-etc.ethermine.org:4444 -u 0x0924EF9ecBcC1287047cAFd2EAD3A133313eE6A2 --url2 stratum+tcp://eu.ezil.me:4444 --user2 0x0924EF9ecBcC1287047cAFd2EAD3A133313eE6A2.zil1yn92lnkkfsn0s2hlvfdmz6y2yhpqm98vng38s9.WORKER --extra-dag-epoch 0 ETC-2miners t-rex -a etchash -o stratum+tcp://etc.2miners.com:1010 -u 0x0924EF9ecBcC1287047cAFd2EAD3A133313eE6A2 -p x -w rig0 ETC-woolypooly t-rex -a etchash -o stratum+tcp://pool.woolypooly.com:35000 -u 0x0924EF9ecBcC1287047cAFd2EAD3A133313eE6A2 -p x -w rig0 ETC-ISP-hidden-mode t-rex -a etchash -o stratum+tcp://eu1-etc.ethermine.org:4444 -u 0x0924EF9ecBcC1287047cAFd2EAD3A133313eE6A2 -p x -w rig0 --no-sni --dns-https-server 1.1.1.1 ETHW-ethproxy t-rex -a ethash -o stratum+http://127.0.0.1:8080 CFX-woolypooly t-rex -a octopus -o stratum+tcp://pool.woolypooly.com:3094 -u cfx:aajauymfc0cpd4aj91wmfyd150avfg3fmym9j2xrh8.rig0 -p x CFX-nanopool t-rex -a octopus -o stratum+tcp://cfx-eu1.nanopool.org:17777 -u cfx:aajauymfc0cpd4aj91wmfyd150avfg3fmym9j2xrh8.rig0/[email protected] -p x ALPH-woolypooly t-rex -a blake3 -o stratum+tcp://pool.woolypooly.com:3106 -u 1qUuxVuXN2Pk4nnYTbL4qihjLWyRkVMQVYQDAajCcuPq -p x -w rig0 ALPH-herominers t-rex -a blake3 -o stratum+tcp://de.alephium.herominers.com:1199 -u 1qUuxVuXN2Pk4nnYTbL4qihjLWyRkVMQVYQDAajCcuPq -p x -w rig0 RVN-2miners t-rex -a kawpow -o stratum+tcp://rvn.2miners.com:6060 -u RNm4LMBGyfH8ddCGvncQKrMtxEydxwhUJL.rig -p x RVN-ravenminer t-rex -a kawpow -o stratum+tcp://stratum.ravenminer.com:3838 -u RNm4LMBGyfH8ddCGvncQKrMtxEydxwhUJL.rig -p x RVN-woolypooly t-rex -a kawpow -o stratum+tcp://pool.woolypooly.com:55555 -u RNm4LMBGyfH8ddCGvncQKrMtxEydxwhUJL.rig -p x SERO-serocash t-rex -a progpow --coin sero -o stratum+tcp://pool2.sero.cash:8808 -u JCbZnEb8XtWV814QWRpDcDxpQpXZXw4ARneAtwXNYdd3reuo4xQDcuZivopA761QnQyfMermHR9Mpi156F5n7ez9tv75Wt7vWbHXtuyZsQVWLbKNHnZgwcXbR2yZmbw89WT -p x -w rig0 VBK-reb0rn t-rex -a progpow-veriblock -o stratum+tcp://vbk-reb0rn.ddns.net:8502 -u V5h6udgGe6eL4M9cYGi776WCP75URm -p x -w rig0 VEIL-woolypooly t-rex -a progpow-veil -o stratum+tcp://pool.woolypooly.com:3098 -u bv1qzftz0vuqa82zy29avylv8sclskweqsrwysgrkg -p x -w rig0 ZANO-luckypool t-rex -a progpowz -o stratum+tcp://zano.luckypool.io:8877 -u iZ2bZfXdeN626rkyy9YsnfeT1Qq1K6XamE4brWm3tzP5hDUAig4dHmKSqe4yyq5dgbSPjmpLbfidqPyDXAuFY2J9544F95vagSF1Xqq3eCUp -p x -w rig0 FIRO-2miners t-rex -a firopow -o stratum+tcp://firo.2miners.com:8181 -u aBR3GY8eBKvEwjrVgNgSWZsteJPpFDqm6U.rig0 -p x FIRO-mintpond t-rex -a firopow -o stratum+ssl://firo.mintpond.com:3005 -u aBR3GY8eBKvEwjrVgNgSWZsteJPpFDqm6U.rig0 -p x FIRO-woolypooly t-rex -a firopow -o stratum+tcp://pool.woolypooly.com:3104 -u aBR3GY8eBKvEwjrVgNgSWZsteJPpFDqm6U.rig0 -p x JSON config file

To start T-Rex with config file config.txt type in the console: t-rex -c config.txt. Use config_example file as a starting point to create your own config. If a parameter is set in the config file and also via cmd line, the latter takes precedence, for example: t-rex -c config.txt -w You can also use environment variables: simply put %YOUR_ENV_VAR% anywhere in your config file and it will get automatically substituted with the value of YOUR_ENV_VAR variable at run-time.

Watchdog

Watchdog is intended to observe miner state and restart T-Rex if it crashes or hangs for any reason. Also, watchdog can optionally perform auto updates if a newer version is available. We recommend using the watchdog to avoid any downtime in mining and make sure your GPUs are busy 24/7. If you do need to disable the watchdog, you can do so using --no-watchdog parameter.

HTTP API

See https://github.com/trexminer/T-Rex/wiki/API

Antivirus alerts

In order to protect the miner from reverse engineering attacks, the binaries are packed using a third-party software which mangles the original machine code. As a result, some antivirus engines may detect certain signatures within the executable that are similar to those that real viruses protected by the same packer have. In any case, it is advisable not to use cryptocurrency miners on the computers where you store your sensitive data (wallets, passwords etc.).

Useful links

Mining calculator: https://woolypooly.com/en/calc/what-to-mine-gpu

Tips

In order to maximise the hashrate our software utilises all available GPU resources, so it is important that you review your overclock settings before you start mining. Our general recommendation is to start from GPU stock settings (no overclock, default power limit), and then after making sure it is stable, slowly increase your overclock to find the "sweet spot" where the miner performs at its best and still does not crash.

Support

Discord server: https://discord.gg/gj7jcYf

Bitcoin Talk Forum: https://bitcointalk.org/index.php?topic=4432704.0

Official website: https://trex-miner.com

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