Claymore's ZCash AMD GPU Miner.
=========================
Latest version v12.4:
- slightly improved speed for some cards (1-2%).
- added "-gmap" option.
- a few minor changes/improvements.
NOTES:
1. Reduce intensity ("-i" option) if miner is unstable or if you see bad speed.
2. It seems there is no way to get full speed on latest drivers for Fiji cards, at least in Windows. So don't use latest drivers for Fury, use 15.12 or 16.3.2.
LINKS:
GOOGLE:
https://drive.google.com/drive/folders/0B69wv2iqszefdmJickl5MF9BOEE?usp=sharingMEGA:
https://mega.nz/#F!P0ZjFDjC!Cmb-ZRqlbAnNrajRtp4zvATHERE IS ALSO RUSSIAN TRANSLATION OF THIS README:
https://bitcointalk.org/index.php?topic=1673724This version is for pools.
Catalyst (Crimson) 15.12 is required for best performance and compatibility.
15.12 does not support some Fiji cards, use 16.3.2 for them.
For 4xx cards (Polaris) Crimson 16.12.2 is recommended.
NOTE: For best performance on Fiji cards you must use 15.12 or 16.3.2 drivers. For newest drivers speed will be slower!
You can get bad results for non-recommended drivers, or miner can fail on startup.
Set the following environment variables, especially if you have 1-2GB cards:
GPU_FORCE_64BIT_PTR 1
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
For multi-GPU systems, set Virtual Memory size in Windows at least 16 GB:
"Computer Properties / Advanced System Settings / Performance / Advanced / Virtual Memory".
This miner is free-to-use, however, current developer fee is 2% if you use secure SSL/TLS connection to mining pool, every hour the miner mines for 72 seconds for developer.
If you use unsecure connection to mining pool, current developer fee is 2.5%, every hour the miner mines for 90 seconds for developer.
If you don't agree with the dev fee - don't use this miner, or use "-nofee" option.
Attempts to cheat and remove dev fee will cause a bit slower mining speed (same as "-nofee 1") though miner will show same hashrate.
This version is for recent AMD videocards only: 7xxx, 2xx, 3xx and 4xx, 1GB or more.
There are builds for Windows x64 and Linux x64. No 32-bit support. No NVidia support.
COMMAND LINE OPTIONS:
-zpool ZCash pool address. Only Stratum protocol is supported.
Miner also supports SSL/TLS encryption for all data between miner and pool (if pool supports encryption), it significantly improves security.
To enable encryption, use "ssl://" or "stratum+ssl://" prefix (or "tls" instead of "ssl"), for example: "-zpool ssl://asia1-zcash.flypool.org:3443"
-zwal Your ZCash wallet address. Also worker name and other options if pool supports it.
Pools that require "Login.Worker" instead of wallet address are not supported directly currently, but you can use "-allpools 1" option to mine there.
-zpsw Password for ZCash pool, use "x" as password.
-a algoritm selection. Possible values: 0..2. 0 - autodetect. You can also specify values for every card, for example "-a 0,2,1". Default value is "0".
-asm try faster assembler algorithm implementation when possible, it is less compatible but faster. Specify "-asm 0" to disable this option.
You can also specify values for every card, for example "-asm 0,1,0". Default value is "1".
Assembler implementation is available for some cards only, miner displays "algorithm ASM" when it is available.
-i mining intensity. Possible values: 0...9. 0 - lowest intensity and CPU usage, 9 - maximal intensity. You can also specify values for every card, for example "-i 2,5,6". Default value is "6".
Note: reduce intensity if you get low speed or miner is unstable. Also check several values to find the best speed, for example, "-i 8" can be a bit faster than "-i 9" in some cases.
-old try to use "-old 1" if v12.0 works stable for you, but newer versions are unstable.
-allpools Specify "-allpools 1" if miner does not want to mine on specified pool (because it cannot mine devfee on that pool), but you agree to use some default pools for devfee mining.
Note that if devfee mining pools will stop, entire mining will be stopped too.
-di GPU indexes, default is all available GPUs. For example, if you have four GPUs "-di 02" will enable only first and third GPUs (#0 and #2).
Use "-di detect" value to detect correct GPU order for temperatures management (requires non-zero "-tt" option); note that it will not work properly if you do not want to assign all GPUs to miner (add "-gmap" option to fix it).
You can also turn on/off cards in runtime with "0"..."9" keys and check current statistics with "s" key.
-ftime failover main pool switch time, in minutes, see "Failover" section below. Default value is 30 minutes, set zero if there is no main pool.
-wd watchdog option. Default value is "-wd 1", it enables watchdog, miner will be closed (or restarted, see "-r" option) if any thread is not responding for 1 minute or OpenCL call failed.
Specify "-wd 0" to disable watchdog.
-r Restart miner mode. "-r 0" (default) - restart miner if something wrong with GPU. "-r -1" - disable automatic restarting. -r >20 - restart miner if something
wrong with GPU or by timer. For example, "-r 60" - restart miner every hour or when some GPU failed.
"-r 1" closes miner and execute "reboot.bat" file ("reboot.bash" or "reboot.sh" for Linux version) in the miner directory (if exists) if some GPU failed.
So you can create "reboot.bat" file and perform some actions, for example, reboot system if you put this line there: "shutdown /r /t 5 /f".
-retrydelay delay, in seconds, between connection attempts. Default values is "20". Specify "-retrydelay -1" if you don't need reconnection, in this mode miner will exit if connection is lost.
-dbg debug log and messages. "-dbg 0" - (default) create log file but don't show debug messages.
"-dbg 1" - create log file and show debug messages. "-dbg -1" - no log file and no debug messages.
-logfile debug log file name. After restart, miner will append new log data to the same file. If you want to clear old log data, file name must contain "noappend" string.
If missed, default file name will be used.
-nofee set "1" to cancel my developer fee at all. In this mode some recent optimizations are disabled so mining speed will be slower by about 5%.
By enabling this mode, I will lose 100% of my earnings, you will lose only 2.5% of your earnings.
So you have a choice: "fastest miner" or "completely free miner but a bit slower".
If you want both "fastest" and "completely free" you should find some other miner that meets your requirements, just don't use this miner instead of claiming that I need
to cancel/reduce developer fee, saying that 2% developer fee is too much for this miner and so on.
-benchmark benchmark mode, specify "-benchmark 1" to see hashrate for your hardware.
-li low intensity mode. Reduces mining intensity, useful if your cards are overheated. Note that mining speed is reduced too.
More value means less heat and mining speed, for example, "-li 10" is less heat and mining speed than "-li 1". You can also specify values for every card, for example "-li 3,10,50".
Default value is "0" - no low intensity mode.
-tt set target GPU temperature. For example, "-tt 80" means 80C temperature. You can also specify values for every card, for example "-tt 70,80,75".
You can also set static fan speed if you specify negative values, for example "-tt -50" sets 50% fan speed. Specify zero to disable control and hide GPU statistics.
"-tt 1" (default) does not manage fans but shows GPU temperature and fan status every 30 seconds. Specify values 2..5 if it is too often.
Note: for Linux gpu-pro drivers, miner must have root access to manage fans, otherwise only monitoring will be available.
-ttli reduce entire mining intensity (for all coins) automatically if GPU temperature is above specified value. For example, "-ttli 80" reduces mining intensity if GPU temperature is above 80C.
You can see if intensity was reduced in detailed statistics ("s" key).
You can also specify values for every card, for example "-ttli 80,85,80". You also should specify non-zero value for "-tt" option to enable this option.
It is a good idea to set "-ttli" value higher than "-tt" value by 3-5C.
NOTE: Check "KNOWN ISSUES" section. GPU indexes in temperature control sometimes don't match GPU indexes in mining!
-tstop set stop GPU temperature, miner will stop mining if GPU reaches specified temperature. For example, "-tstop 95" means 95C temperature. You can also specify values for every card, for example "-tstop 95,85,90".
This feature is disabled by default ("-tstop 0"). You also should specify non-zero value for "-tt" option to enable this option.
NOTE: Check "KNOWN ISSUES" section. GPU indexes in temperature control sometimes don't match GPU indexes in mining!
If it turned off wrong card, it will close miner in 30 seconds.
You can also specify negative value to close miner immediately instead of stopping GPU, for example, "-tstop -95" will close miner as soon as any GPU reach 95C temperature.
-fanmax set maximal fan speed, in percents, for example, "-fanmax 80" will set maximal fans speed to 80%. You can also specify values for every card, for example "-fanmax 50,60,70".
This option works only if miner manages cooling, i.e. when "-tt" option is used to specify target temperature. Default value is "100".
-fanmin set minimal fan speed, in percents, for example, "-fanmin 50" will set minimal fans speed to 50%. You can also specify values for every card, for example "-fanmin 50,60,70".
This option works only if miner manages cooling, i.e. when "-tt" option is used to specify target temperature. Default value is "0".
-cclock set target GPU core clock speed, in MHz. If not specified or zero, miner will not change current clock speed. You can also specify values for every card, for example "-cclock 1000,1050,1100,0".
Unfortunately, AMD blocked underclocking for some reason, you can overclock only.
-mclock set target GPU memory clock speed, in MHz. If not specified or zero, miner will not change current clock speed. You can also specify values for every card, for example "-mclock 1200,1250,1200,0".
Unfortunately, AMD blocked underclocking for some reason, you can overclock only.
-powlim set power limit, from -50 to 50. If not specified, miner will not change power limit. You can also specify values for every card, for example "-powlim 20,-20,0,10".
-cvddc set target GPU core voltage, multiplied by 1000. For example, "-cvddc 1050" means 1.05V. You can also specify values for every card, for example "-cvddc 900,950,1000,970". Supports latest AMD 4xx cards only in Windows.
-mvddc set target GPU memory voltage, multiplied by 1000. For example, "-mvddc 1050" means 1.05V. You can also specify values for every card, for example "-mvddc 900,950,1000,970". Supports latest AMD 4xx cards only in Windows.
-mport remote monitoring/management port. Default value is -3333 (read-mode), specify "-mport 0" to disable remote monitoring/management feature.
Specify negative value to enable monitoring (get statistics) but disable management (restart, uploading files), for example, "-mport -3333" enables port 3333 for remote monitoring, but remote management will be blocked.
You can also use your web browser to see current miner state, for example, type "localhost:3333" in web browser.
Warning: use negative option value or disable remote management entirely if you think that you can be attacked via this port!
By default, miner will accept connections on specified port on all network adapters, but you can select desired network interface directly, for example, "-mport 127.0.0.1:3333" opens port on localhost only.
-colors enables or disables colored text in console. Default value is "1", use "-colors 0" to disable coloring.
-v displays miner version, sample usage: "-v 1".
-gmap sets GPU order in fan/temperature list. This option is similar to "-di" option, but it manages fan/temperature list.
For example, if you have two cards, you can change their order by adding "-gmap 10". Another example, reverse order for six cards: "-gmap 543210".
This option is also useful if you want to exclude some GPUs from the list. For example, if you have four cards, you can exclude first GPU from fan/temperature list with "-gmap 123".
CONFIGURATION FILE
You can use "config.txt" file instead of specifying options in command line.
If there are not any command line options, miner will check "config.txt" file for options.
If there is only one option in the command line, it must be configuration file name.
If there are two or more options in the command line, miner will take all options from the command line, not from configuration file.
Place one option per line, if first character of a line is ";" or "#", this line will be ignored.
You can also use environment variables in "epools.txt" and "config.txt" files. For example, define "WORKER" environment variable and use it as "%WORKER%" in config.txt or in epools.txt.
SAMPLE USAGE
flypool SSL/TLS connection:
ZecMiner64.exe -zpool ssl://eu1-zcash.flypool.org:3443 -zwal t1RjQjDbPQ9Syp97DHFyzvgZhcjgLTMwhaq.YourWorkerName -zpsw x
suprnova SSL/TLS connection:
ZecMiner64.exe -zpool ssl://zec.suprnova.cc:2242 -zwal YourLogin.YourWorkerName -zpsw YourWorkerPassword
miningpoolhub SSL/TLS connection (this pool detects encryption automatically so it uses same port as for unencrypted connection):
ZecMiner64.exe -zpool ssl://us-east.equihash-hub.miningpoolhub.com:20570 -zwal YourLogin.YourWorkerName -zpsw YourWorkerPassword
coinmine SSL/TLS connection:
ZecMiner64.exe -zpool ssl://zec.coinmine.pl:7017 -zwal YourLogin.YourWorkerName -zpsw YourWorkerPassword
flypool (unencrypted connection):
ZecMiner64.exe -zpool eu1-zcash.flypool.org:3333 -zwal t1RjQjDbPQ9Syp97DHFyzvgZhcjgLTMwhaq.YourWorkerName -zpsw x
nanopool (unencrypted connection):
ZecMiner64.exe -zpool zec-eu1.nanopool.org:6666 -zwal t1RjQjDbPQ9Syp97DHFyzvgZhcjgLTMwhaq.YourWorkerName -zpsw x
miningpoolhub (unencrypted connection)
ZecMiner64.exe -zpool us-east.equihash-hub.miningpoolhub.com:20570 -zwal YourLogin.YourWorkerName -zpsw YourWorkerPassword
nicehash (unencrypted connection):
ZecMiner64.exe -zpool equihash.usa.nicehash.com:3357 -zwal 1LmMNkiEvjapn5PRY8A9wypcWJveRrRGWr -zpsw x
suprnova (unencrypted connection):
ZecMiner64.exe -zpool zec.suprnova.cc:2142 -zwal YourLogin.YourWorkerName -zpsw YourWorkerPassword
coinmine (unencrypted connection):
ZecMiner64.exe -zpool zec.coinmine.pl:7007 -zwal YourLogin.YourWorkerName -zpsw YourWorkerPassword
FAILOVER
Use "epools.txt" file to specify additional pools. This file has text format, one pool per line. Every pool has 3 connection attempts.
Miner disconnects automatically if pool does not send new jobs for a long time or if pool rejects too many shares.
If the first character of a line is ";" or "#", this line will be ignored.
Do not change spacing, spaces between parameters and values are required for parsing.
If you need to specify "," character in parameter value, use two commas - ,, will be treated as one comma.
You can reload "epools.txt" file in runtime by pressing "r" key.
Pool specified in the command line is "main" pool, miner will try to return to it every 30 minutes if it has to use some different pool from the list.
If no pool was specified in the command line then first pool in the failover pools list is main pool.
You can change 30 minutes time period to some different value with "-ftime" option, or use "-ftime 0" to disable switching to main pool.
You can also use environment variables in "epools.txt" and "config.txt" files. For example, define "WORKER" environment variable and use it as "%WORKER%" in config.txt or in epools.txt.
REMOTE MONITORING/MANAGEMENT
Miner supports remote monitoring/management via JSON protocol over TCP/IP sockets, HTTP is supported as well.
Start "EthMan.exe" from "Remote management" subfolder (Windows version only).
Check "Help" tab for built-in help.
KNOWN ISSUES
- AMD cards: GPU indexes in temperature control sometimes don't match GPU indexes in mining. Miner has to enumerate GPUs via OpenCL API to execute OpenCL code, and also it has to enumerate GPUs via ADL API to manage temperature/clock.
And order of GPUs in these lists can be different. There is no way to fix GPUs order automatically, thanks to AMD devs.
But you can do it manually. For example, if you have two cards, you can change their order by adding "-di 10". Another example, reverse order for six cards: "-di 543210".
Also you can do it automatically (experimental feature) with "-di detect" option.
Also you can change GPUs order in temperature/fan list with "-gmap" option.
- Windows 10 Defender recognizes miner as a virus, some antiviruses do the same. Miner is not a virus, add it to Defender exceptions.
I write miners since 2014. Most of them are recognized as viruses by some paranoid antiviruses, perhaps because I pack my miners to protect them from disassembling, perhaps because some people include them into their botnets, or perhaps these antiviruses are not good, I don't know. For these years, a lot of people used my miners and nobody confirmed that my miner stole anything or did something bad.
Note that I can guarantee clean binaries only for official links in my posts on this forum (bitcointalk). If you downloaded miner from some other link - it really can be a virus.
However, my miners are closed-source so I cannot prove that they are not viruses. If you think that I write viruses instead of good miners - do not use this miner, or at least use it on systems without any valuable data.
TROUBLESHOOTING
1. Install Catalyst v15.12.
2. Disable overclocking.
3. Reduce intensity ("-i" option).
4. Set environment variables as described above.
5. Set Virtual Memory 16 GB or more.
6. Try "-old 1" option.
7. Reboot computer.
8. Check hardware, risers.
FAQ:
Q: It seems miner mines devfee more than 72 or 90 seconds.
A: No, it does not, please read:
https://bitcointalk.org/index.php?topic=1670733.msg16777816;topicseen#msg16777816Q: Why do I see more shares for devfee than in my mining for the same time?
A: Most pools support variable diff, they change "target share" after some time after connection. For example, you have very powerful rig, after connection you will send shares very often. It takes some CPU time to check your shares so after some time pool will send higher share target and miner will send less shares (but they will have more value). When pool updates share target you will see "Pool sets new share target" line in the miner. This way pool can adjust the number of shares that miner sends and balance its load.
So check the log or console text to see current target for main mining thread and for devfee thread. For example:
DevFee: Pool sets new share target: 0x0083126e (diff: 500H) - this is for devfee mining connection
Pool sets new share target: 0x0024fa4f (diff: 1772H) - this is for main mining connection
As you can see, target share for main mining is higher in about 3.5 times, so for main mining miner sends in 3 times less shares (but they have 3x more value) than for devfee mining.
Claymore? - Are you working on optimizing for 570 and 580 cards? Is with them a big problem of performance and power consumption.
