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Author Topic: OFFICIAL CGMINER mining software thread for linux/win/osx/mips/arm/r-pi 4.11.1  (Read 5805545 times)
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-ck (OP)
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Activity: 4256
Merit: 1644


Ruu \o/


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July 13, 2011, 03:02:53 AM
Last edit: August 16, 2018, 02:23:36 AM by -ck
Merited by EFS (80), ABCbits (11), HagssFIN (5), louiseth1 (5), DireWolfM14 (1)
 #1

This is the official thread for support and development of cgminer, the ASIC bitcoin miner written in c, cross platform for windows, linux, OSX and other, with monitoring, fanspeed control and remote interface capabilities. There is NO SUPPORT for CPU, GPU or altcoin mining in this thread, nor older versions with that functionality, nor any support for unofficial forks of this code.

This code is provided entirely free of charge by the programmer in his spare
time so donations would be greatly appreciated.

Help can also be obtained on IRC: irc.freenode.net #cgminer
READ THE README INCLUDED IN THE ARCHIVE BEFORE ASKING QUESTIONS WHICH CAN ALSO BE FOUND HERE:
http://ck.kolivas.org/apps/cgminer/README

Note that I can NOT provide free personalised support via email or personal messages under normal circumstances so they will usually be ignored.
Apologies, but the demand is just far too great and I must prioritise my time.

All files available for DOWNLOAD from here:
http://ck.kolivas.org/apps/cgminer


Debug builds are in http://ck.kolivas.org/apps/cgminer/debug/

.lrz files are compressed with lrzip http://lrzip.kolivas.org for much better compression and supports extreme encryption technology which is ideal for securing wallets.

LATEST RELEASE: 4.11.0 see:
https://bitcointalk.org/index.php?topic=28402.msg44103867#msg44103867

Git tree:
https://github.com/ckolivas/cgminer

Latest git source tarball:
https://github.com/ckolivas/cgminer/tarball/master

Unofficial OSX binaries:
http://spaceman.ca/cgminer/

NOTE: This code is licensed under the GPLv3. This means that the source to any
modifications you make to this code MUST be provided by law if you distribute
modified binaries. See COPYING for details.


Features:
- Very low overhead free c code for Linux and windows with very low non-mining CPU and ram usage
- Stratum and GBT pooled mining protocol support, including ultra low overhead solo mining
- Scaleable networking scheduler designed to scale to any size hashrate without networking delays yet minimise connection overhead
- long poll support - will use longpoll from any pool if primary pool does not support it
- Self detection of new blocks with a mini-database for slow/failing longpoll scenarios, maximum work efficiency and minimum rejects.
- Heavily threaded code hands out work retrieval and work submission to separate threads to not hinder devices working
- Caching of submissions during transient network outages
- Preemptive fetching of work prior to completion of current work
- Local generation of valid work (via stratum, GBT or ntime rollover) whenever possible, as supported on a per-work item basis
- Prevention of stale work submission on new block
- Summarised and discrete device data statistics of requests, accepts, rejects, hw errors and work utility
- Summary displayed when quitting
- Supports multiple pools with multiple intelligent failover mechanisms
- Temporary disabling of misbehaving pools rejecting all shares
- On the fly menu based management of most settings
- Trickling of extra work to backup pools if primary pool is responding but slow
- RPC +/- JSON interface for remote control
- Bitforce support - singles and minirig
- Icarus support
- Modminer support
- Ability to cope with slow routers
- Submit-old support
- X-Reject-Reason support
- Variable difficulty support
- Share difficulty reporting
- Target and block difficulty displays
- Block solve detection
- ASIC Avalon support
- Bitburner support
- Redfury/Bluefury USB stick support
- Bi*fury USB support
- Hexfury USB support
- Onestring miner support
- BlackArrow Bitfury support
- BFL SC asic support
- Drillbit support
- Klondike support
- KnCminer Saturn support
- KnCminer Jupiter support
- KnCminer Neptune support
- Hashfast support
- Nanofury support
- Minion support
- Antminer U1/2+ support
- Bitmine A1 support
- Avalon2/3 support
- Bitmain S1 support
- Cointerra support
- Dragonmint T1 support
- BFx2 support
- Spondoolies SP10 support
- Spondoolies SP30 support
- Rockminer R-Box support
- Hashratio support
- Avalon4/5/6/7 support
- Compac gekko support
- Direct USB communications
- Device hotplug
- Heavily featured RPC API
- Multicast support
- Proxy support
- Coinbase decoding
- Lots of other stuff I can't remember. See options.

Sample output:
Code:
 cgminer version 4.2.1 - Started: [2014-03-29 10:06:52]
--------------------------------------------------------------------------------
 (5s):4.300T (1m):4.324T (5m):4.240T (15m):4.219T (avg):4.242Th/s
 A:9885432  R:64389  HW:1749  WU:59420.7/m
 Connected to au.ozco.in diff 6.45K with stratum as user ckolivas.0
 Block: a1e68974...  Diff:5.01G  Started: [12:48:48]  Best share: 3.41M  
--------------------------------------------------------------------------------
 [U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
 0: ANU 0       :                         | 1.989G / 1.980Gh/s
 1: NF1 0       :                         | 2.417G / 2.404Gh/s
 2: BXM 0       :                         | 3.798G / 3.781Gh/s
 3: BXM 1       :                         | 3.879G / 3.867Gh/s
 4: BXF 0       :  45.9C                  | 4.959G / 4.908Gh/s
 5: CTA 013219f9: 850MHz 75.4C 0.68V      | 1.056T / 803.3Gh/s
 6: CTA 013219fa: 850MHz 116.1C 0.68V     | 643.6G / 805.5Gh/s
 7: HFS Random  : 645MHz  86C  37% 0.79V  | 1.314T / 1.369Th/s
 8: BF1 0d110c15:                         | 2.275G / 2.288Gh/s
 9: HFS IceDrill: 604MHz  86C  23% 0.80V  | 1.214T / 1.250Th/s
 
---
USB menu:
Code:
Hotplug interval:5
8 USB devices, 7 enabled, 0 disabled, 1 zombie
[S]ummary of device information
[E]nable device
[D]isable device
[U]nplug to allow hotplug restart
[R]eset device USB
[L]ist all known devices
[B]lacklist current device from current instance of cgminer
[W]hitelist previously blacklisted device
[H]otplug interval (0 to disable)
Select an option or any other key to return

Pool menu:
Code:
0: Enabled Alive Quota 1 Prio 0: stratum+tcp://au.ozco.in:3333  User:ckolivas.0
1: Enabled Alive Quota 1 Prio 1: stratum+tcp://hash.mineb.tc:3333  User:ckolivas.0
2: Enabled Alive Quota 1 Prio 2: stratum+tcp://stratum.ozco.in:3333  User:ckolivas.0
3: Enabled Dead Quota 1 Prio 3: stratum+tcp://us1.eclipsemc.com:3333  User:ckolivas_0
4: Enabled Alive Quota 1 Prio 4: stratum+tcp://api-stratum.bitcoin.cz:3333  User:ckolivas.0
5: Enabled Alive Quota 1 Prio 5: stratum+tcp://stratum.btcguild.com:3333  User:ckolivas_0

Current pool management strategy: Failover
Pool [A]dd [R]emove [D]isable [E]nable [Q]uota change
[C]hange management strategy [S]witch pool [I]nformation
Or press any other key to continue

Change settings menu:
Code:
[W]rite config file
[C]gminer restart
Select an option or any other key to return

Display menu:

Code:
[N]ormal [C]lear [S]ilent mode (disable all output)
[D]ebug:off
[P]er-device:off
[Q]uiet:off
[V]erbose:off
[R]PC debug:off
[W]orkTime details:off
co[M]pact: off
[T]oggle status switching:enabled
w[I]descreen:disabled
[Z]ero statistics
[L]og interval:5


On exiting:
Code:
Summary of runtime statistics:

Started at [2011-07-19 14:40:09]
Runtime: 2 hrs : 31 mins : 18 secs
Average hashrate: 1680.1 Megahash/s
Queued work requests: 3317
Share submissions: 3489
Accepted shares: 3489
Rejected shares: 0
Reject ratio: 0.0
Hardware errors: 0
Efficiency (accepted / queued): 105%
Utility (accepted shares / min): 23.06/min

Discarded work due to new blocks: 0
Stale submissions discarded due to new blocks: 9
Unable to get work from server occasions: 16
Work items generated locally: 330
Submitting work remotely delay occasions: 33
New blocks detected on network: 10

Pool: http://ozco.in:8332
 Queued work requests: 3253
 Share submissions: 3426
 Accepted shares: 3426
 Rejected shares: 0
 Reject ratio: 0.0
 Efficiency (accepted / queued): 105%
 Discarded work due to new blocks: 0
 Stale submissions discarded due to new blocks: 9
 Unable to get work from server occasions: 15
 Submitting work remotely delay occasions: 33
---

See README, FGPA-README and ASIC-README for more information regarding command line parameters.

Cgminer should automatically find all of your Avalon ASIC, BFL ASIC, BitForce
FPGAs, Icarus bitstream FPGAs, Klondike ASIC, ASICMINER usb block erupters,
KnC ASICs, BaB ASICs, Hashfast ASICs and ModMiner FPGAs.

---

EXECUTIVE SUMMARY ON USAGE:

Single pool:

cgminer -o http://pool:port -u username -p password

Multiple pools:

cgminer -o http://pool1:port -u pool1username -p pool1password -o http://pool2:port -u pool2usernmae -p pool2password

Single pool with a standard http proxy:

cgminer -o "http:proxy:port|http://pool:port" -u username -p password

Single pool with a socks5 proxy:

cgminer -o "socks5:proxy:port|http://pool:port" -u username -p password

Single pool with stratum protocol support:

cgminer -o stratum+tcp://pool:port -u username -p password

Solo mining to local bitcoind:

cgminer -o http://localhost:8332 -u username -p password --btc-address 15qSxP1SQcUX3o4nhkfdbgyoWEFMomJ4rZ

The list of proxy types are:
 http:    standard http 1.1 proxy
 http0:   http 1.0 proxy
 socks4:  socks4 proxy
 socks5:  socks5 proxy
 socks4a: socks4a proxy
 socks5h: socks5 proxy using a hostname

If you compile cgminer with a version of CURL before 7.19.4 then some of the above will
not be available. All are available since CURL version 7.19.4

If you specify the --socks-proxy option to cgminer, it will only be applied to all pools
that don't specify their own proxy setting like above


After saving configuration from the menu, you do not need to give cgminer any
arguments and it will load your configuration.

Any configuration file may also contain a single
   "include" : "filename"
to recursively include another configuration file.
Writing the configuration will save all settings from all files in the output.

---
Also many issues and FAQs are covered in the forum thread
dedicated to this program,
   http://forum.bitcoin.org/index.php?topic=28402.0

The output line shows the following:
 (5s):223.5G (avg):219.6Gh/s | A:330090  R:0  HW:6904  WU:3027.6/m

Each column is as follows:
5s:  A 5 second exponentially decaying average hash rate
avg: An all time average hash rate
A:   The number of Accepted shares
R:   The number of Rejected shares
HW:  The number of HardWare errors
WU:   The Work Utility defined as the number of diff1 equivalent shares / minute

 AVA 0: 23C/ 47C 2280R | 77.10G/83.20Gh/s | A:120029 R:0 HW:2295 WU:1162.5/m

Each column is as follows:
Temperature (if supported)
Fanspeed (if supported)
A 5 second exponentially decaying average hash rate
An all time average hash rate
The number of accepted shares
The number of rejected shares
The number of hardware erorrs
The Work Utility defined as the number of diff1 equivalent shares / minute

The cgminer status line shows:
 TQ: 1  ST: 1  SS: 0  DW: 0  NB: 1  LW: 8  GF: 1  RF: 1

TQ is Total Queued work items.
ST is STaged work items (ready to use).
SS is Stale Shares discarded (detected and not submitted so don't count as rejects)
DW is Discarded Work items (work from block no longer valid to work on)
NB is New Blocks detected on the network
LW is Locally generated Work items
GF is Getwork Fail Occasions (server slow to provide work)
RF is Remote Fail occasions (server slow to accept work)

---
MULTIPOOL

FAILOVER STRATEGIES WITH MULTIPOOL:
A number of different strategies for dealing with multipool setups are
available. Each has their advantages and disadvantages so multiple strategies
are available by user choice, as per the following list:

FAILOVER:
The default strategy is failover. This means that if you input a number of
pools, it will try to use them as a priority list, moving away from the 1st
to the 2nd, 2nd to 3rd and so on. If any of the earlier pools recover, it will
move back to the higher priority ones.

ROUND ROBIN:
This strategy only moves from one pool to the next when the current one falls
idle and makes no attempt to move otherwise.

ROTATE:
This strategy moves at user-defined intervals from one active pool to the next,
skipping pools that are idle.

LOAD BALANCE:
This strategy sends work to all the pools to maintain optimum load. The most
efficient pools will tend to get a lot more shares. If any pool falls idle, the
rest will tend to take up the slack keeping the miner busy.

BALANCE:
This strategy monitors the amount of difficulty 1 shares solved for each pool
and uses it to try to end up doing the same amount of work for all pools.

---
SOLO MINING

Solo mining can be done efficiently as a single pool entry or a backup to
any other pooled mining and it is recommended everyone have solo mining set up
as their final backup in case all their other pools are DDoSed/down for the
security of the network. To enable solo mining, one must be running a local
bitcoind/bitcoin-qt or have one they have rpc access to. To do this, edit your
bitcoind configuration file (bitcoin.conf) with the following extra lines,
using your choice of username and password:

rpcuser=username
rpcpassword=password

Restart bitcoind, then start cgminer, pointing to the bitcoind and choose a
btc address with the following options, altering to suit their setup:

cgminer -o http://localhost:8332 -u username -p password --btc-address 15qSxP1SQcUX3o4nhkfdbgyoWEFMomJ4rZ


---
LOGGING

cgminer will log to stderr if it detects stderr is being redirected to a file.
To enable logging simply add 2>logfile.txt to your command line and logfile.txt
will contain the logged output at the log level you specify (normal, verbose,
debug etc.)

In other words if you would normally use:
./cgminer -o xxx -u yyy -p zzz
if you use
./cgminer -o xxx -u yyy -p zzz 2>logfile.txt
it will log to a file called logfile.txt and otherwise work the same.

There is also the -m option on linux which will spawn a command of your choice
and pipe the output directly to that command.


If you start cgminer with the --sharelog option, you can get detailed
information for each share found. The argument to the option may be "-" for
standard output (not advisable with the ncurses UI), any valid positive number
for that file descriptor, or a filename.

To log share data to a file named "share.log", you can use either:
./cgminer --sharelog 50 -o xxx -u yyy -p zzz 50>share.log
./cgminer --sharelog share.log -o xxx -u yyy -p zzz

For every share found, data will be logged in a CSV (Comma Separated Value)
format:
    timestamp,disposition,target,pool,dev,thr,sharehash,sharedata
For example (this is wrapped, but it's all on one line for real):
    1335313090,reject,
    ffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000,
    http://localhost:8337,GPU0,0,
    6f983c918f3299b58febf95ec4d0c7094ed634bc13754553ec34fc3800000000,
    00000001a0980aff4ce4a96d53f4b89a2d5f0e765c978640fe24372a000001c5
    000000004a4366808f81d44f26df3d69d7dc4b3473385930462d9ab707b50498
    f681634a4f1f63d01a0cd43fb338000000000080000000000000000000000000
    0000000000000000000000000000000000000000000000000000000080020000

---

RPC API

For RPC API details see the API-README file

---

FAQ

Q: Can I mine on servers from different networks (eg xxxcoin and bitcoin) at
the same time?
A: No, cgminer keeps a database of the block it's working on to ensure it does
not work on stale blocks, and having different blocks from two networks would
make it invalidate the work from each other.

Q: Can I configure cgminer to mine with different login credentials or pools
for each separate device?
A: No.

Q: Can I put multiple pools in the config file?
A: Yes, check the example.conf file. Alternatively, set up everything either on
the command line or via the menu after startup and choose settings->write
config file and the file will be loaded one each startup.

Q: The build fails with gcc is unable to build a binary.
A: Remove the "-march=native" component of your CFLAGS as your version of gcc
does not support it.

Q: Can you implement feature X?
A: I can, but time is limited, and people who donate are more likely to get
their feature requests implemented.

Q: Work keeps going to my backup pool even though my primary pool hasn't
failed?
A: Cgminer checks for conditions where the primary pool is lagging and will
pass some work to the backup servers under those conditions. The reason for
doing this is to try its absolute best to keep the GPUs working on something
useful and not risk idle periods. You can disable this behaviour with the
option --failover-only.

Q: Is this a virus?
A: Cgminer is being packaged with other trojan scripts and some antivirus
software is falsely accusing cgminer.exe as being the actual virus, rather
than whatever it is being packaged with. If you installed cgminer yourself,
then you do not have a virus on your computer. Complain to your antivirus
software company. They seem to be flagging even source code now from cgminer
as viruses, even though text source files can't do anything by themself.

Q: Can you modify the display to include more of one thing in the output and
less of another, or can you change the quiet mode or can you add yet another
output mode?
A: Everyone will always have their own view of what's important to monitor.
The defaults are very sane and I have very little interest in changing this
any further.

Q: What are the best parameters to pass for X pool/hardware/device.
A: Virtually always, the DEFAULT parameters give the best results. Most user
defined settings lead to worse performance. The ONLY thing most users should
need to set is the Intensity for GPUs.

Q: What happened to CPU and GPU mining?
A: Their efficiency makes them irrelevant in the bitcoin mining world today
and the author has no interest in supporting alternative coins that are better
mined by these devices.

Q: GUI version?
A: No. The RPC interface makes it possible for someone else to write one
though.

Q: I'm having an issue. What debugging information should I provide?
A: Start cgminer with your regular commands and add -D -T --verbose and provide
the full startup output and a summary of your hardware and operating system.

Q: Why don't you provide win64 builds?
A: Win32 builds work everywhere and there is precisely zero advantage to a
64 bit build on windows.

Q: Is it faster to mine on windows or linux?
A: It makes no difference. It comes down to choice of operating system for
their various features. Linux offers much better long term stability and
remote monitoring and security, while windows offers you overclocking tools
that can achieve much more than cgminer can do on linux.

Q: My network gets slower and slower and then dies for a minute?
A; Try the --net-delay option.

Q: How do I tune for p2pool?
A: It is also recommended to use --failover-only since the work is effectively
like a different block chain, and not enabling --no-submit-stale. If mining with
a BFL (fpga) minirig, it is worth adding the --bfl-range option.

Q: I run PHP on windows to access the API with the example miner.php. Why does
it fail when php is installed properly but I only get errors about Sockets not
working in the logs?
A: http://us.php.net/manual/en/sockets.installation.php

Q: What is a PGA?
A: At the moment, cgminer supports 3 FPGAs: BitForce, Icarus and ModMiner.
They are Field-Programmable Gate Arrays that have been programmed to do Bitcoin
mining. Since the acronym needs to be only 3 characters, the "Field-" part has
been skipped.

Q: What is an ASIC?
A: They are Application Specify Integrated Circuit devices and provide the
highest performance per unit power due to being dedicated to only one purpose.

Q: Can I mine scrypt with FPGAs or ASICs?
A: No.

Q: What is stratum and how do I use it?
A: Stratum is a protocol designed for pooled mining in such a way as to
minimise the amount of network communications, yet scale to hardware of any
speed. With versions of cgminer 2.8.0+, if a pool has stratum support, cgminer
will automatically detect it and switch to the support as advertised if it can.
If you input the stratum port directly into your configuration, or use the
special prefix "stratum+tcp://" instead of "http://", cgminer will ONLY try to
use stratum protocol mining. The advantages of stratum to the miner are no
delays in getting more work for the miner, less rejects across block changes,
and far less network communications for the same amount of mining hashrate. If
you do NOT wish cgminer to automatically switch to stratum protocol even if it
is detected, add the --fix-protocol option.

Q: Why don't the statistics add up: Accepted, Rejected, Stale, Hardware Errors,
Diff1 Work, etc. when mining greater than 1 difficulty shares?
A: As an example, if you look at 'Difficulty Accepted' in the RPC API, the number
of difficulty shares accepted does not usually exactly equal the amount of work
done to find them. If you are mining at 8 difficulty, then you would expect on
average to find one 8 difficulty share, per 8 single difficulty shares found.
However, the number is actually random and converges over time, it is an average,
not an exact value, thus you may find more or less than the expected average.

Q: My keyboard input momentarily pauses or repeats keys every so often on
windows while mining?
A: The USB implementation on windows can be very flaky on some hardware and
every time cgminer looks for new hardware to hotplug it it can cause these
sorts of problems. You can disable hotplug with:
--hotplug 0

Q: What should my Work Utility (WU) be?
A: Work utility is the product of hashrate * luck and only stabilises over a
very long period of time. Assuming all your work is valid work, bitcoin mining
should produce a work utility of approximately 1 per 71.6MH. This means at
5GH you should have a WU of 5000 / 71.6 or ~ 69. You cannot make your machine
do "better WU" than this - it is luck related. However you can make it much
worse if your machine produces a lot of hardware errors producing invalid work.

Q: What should I build in for a generic distribution binary?
A: There are a number of drivers that expect to be used on dedicated standalone
hardware. That said, the drivers that are designed to work generically with
USB on any hardware are the following:

Code:
--enable-avalon
--enable-avalon2
--enable-avalon4
--enable-avalon7
--enable-bflsc
--enable-bitfury
--enable-cointerra
--enable-drillbit
--enable-hashfast
--enable-hashratio
--enable-icarus
--enable-klondike

Q: How do I use the --decode function to decode a pool's coinbase?
A: You need to have a bitcoind with server functionality and pass it the
credentials as the first pool in your config, and pass the pool's address that
you wish to decode as the second pool configured. Note the bitcoind NEEDS the
http:// prefix.

e.g.:
./cgminer -o http://localhost:8332 -u user -p pass -o solo.ckpool.org:3333 -u 15qSxP1SQcUX3o4nhkfdbgyoWEFMomJ4rZ --decode

---

This code is provided entirely free of charge by the programmer in his spare
time so donations would be greatly appreciated. Please consider donating to the
address below. Driver development for new ASIC only bitcoin hardware can be
suitably sponsored.

Con Kolivas <kernel@kolivas.org>
15qSxP1SQcUX3o4nhkfdbgyoWEFMomJ4rZ

Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
2% Fee Solo mining at solo.ckpool.org
-ck
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July 13, 2011, 03:24:23 AM
 #2

I've switched from phoenix to diablo to poclbm and i have to say, this is the best one so far.

First miner to restart dead gpu threads (for when they over heat etc).

 Merged mining, free SMS notifications, PayPal payout and much more.
http://btcstats.net/sig/JZCODg2
Graet
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July 13, 2011, 03:26:33 AM
 #3

been using cgminer for nearly a week as conman worked on it,
love and reccomend it! Cheesy

| Ozcoin Pooled Mining Pty Ltd https://ozcoin.net Double Geometric Reward System https://lc.ozcoin.net for Litecoin mining DGM| https://crowncloud.net VPS and Dedicated Servers for the BTC community
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July 13, 2011, 04:46:10 AM
 #4

Debian 6 built from git:

Quote
$ cgminer -o http://domain.tld:8332 -u X -p Y -d 0 -D
cgminer version 1.2.4
--------------------------------------------------------------------------------
Totals:
--------------------------------------------------------------------------------
GPU 0: [0.0 Mh/s] [Q:0  A:0  R:0  HW:0  E:0%  U:0.00/m]
GPU 1: [0.0 Mh/s] [Q:0  A:0  R:0  HW:0  E:0%  U:0.00/m]


--------------------------------------------------------------------------------

[2011-07-13 00:42:22] Attempting to restart thread 0, idle for more than 60 seconds
[2011-07-13 00:42:22] Failed to pthread_cancel in reinit_gputhread
[2011-07-13 00:42:22] Received kill message
[2011-07-13 00:42:22] Thread 0 restarted
[2011-07-13 00:42:22] Attempting to restart thread 1, idle for more than 60 secondsSegmentation fault

/var/log/messages:
Quote
Jul 13 00:42:22 debianminer2 kernel: [  385.148119] cgminer[6395]: segfault at 28 ip 00007f296cb02ed4 sp 00007f29620c9d20 error 4 in libpthread-2.11.2.so[7f296cafa000+17000]
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July 13, 2011, 05:15:33 AM
 #5

hey... are you the guy from the linux scheduler?

if you are..great work man!!!!!
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July 13, 2011, 05:26:34 AM
 #6

Yes, I am the linux kernel scheduler guy, -ck Smiley

Updated git tree:
I've added dynamic adjustment of intensity for usage on a normal desktop. This flag is enabled by default and tests to ensure the GPU is constantly available for desktop use and will scale intensity down when you are watching a movie, gaming or just about any other intense GPU usage, and scale it up when otherwise idle. This is best disabled on dedicated miners:

The new option is:
--no-dynamic|-n     Disable dynamic adjustment of intensity which normally maintains desktop interactivity

The difference can be quite dramatic in terms of how much smoother the desktop is, and how much higher the throughput is when it's idle.

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July 13, 2011, 05:28:33 AM
 #7

Thanks for taking over "the C miner" project!

Jeff Garzik, Bloq CEO, former bitcoin core dev team; opinions are my own.
Visit bloq.com / metronome.io
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July 13, 2011, 05:32:03 AM
 #8

Thanks for taking over "the C miner" project!

You're most welcome. Thanks so much for the original stable working framework and all the cpu mining bits without which it would have taken me much longer (if ever) to get this far!

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July 13, 2011, 05:40:33 AM
 #9

Debian 6 built from git:

Quote
$ cgminer -o http://domain.tld:8332 -u X -p Y -d 0 -D
cgminer version 1.2.4
--------------------------------------------------------------------------------
Totals:
--------------------------------------------------------------------------------
GPU 0: [0.0 Mh/s] [Q:0  A:0  R:0  HW:0  E:0%  U:0.00/m]
GPU 1: [0.0 Mh/s] [Q:0  A:0  R:0  HW:0  E:0%  U:0.00/m]


--------------------------------------------------------------------------------

[2011-07-13 00:42:22] Attempting to restart thread 0, idle for more than 60 seconds
[2011-07-13 00:42:22] Failed to pthread_cancel in reinit_gputhread
[2011-07-13 00:42:22] Received kill message
[2011-07-13 00:42:22] Thread 0 restarted
[2011-07-13 00:42:22] Attempting to restart thread 1, idle for more than 60 secondsSegmentation fault

/var/log/messages:
Quote
Jul 13 00:42:22 debianminer2 kernel: [  385.148119] cgminer[6395]: segfault at 28 ip 00007f296cb02ed4 sp 00007f29620c9d20 error 4 in libpthread-2.11.2.so[7f296cafa000+17000]

Thanks. That doesn't look like it ever started mining. Were all the login parameters ok? Did debug show you any http error messages or the like? Unfortunately cgminer doesn't abort when it fails to connect right at the start and may just sit there looking stupid.

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July 13, 2011, 05:50:57 AM
 #10

I didn't try this version (but will do this later today), perhaps someone can answer my questions.

1. Are the OpenCL kernels editable (.cl file somewhere) or is it hard coded? If no, could you please make that an option or make it modular.
2. Are the OpenCL init values for the kernel editable? If no, could you please make that an option or make it modular.

I'm asking, because it's very easy for me to customize and modify kernels in Phoenix + init values Smiley.

3. How much CPU time is eaten for each GPU running?

Thanks,
Dia

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July 13, 2011, 05:57:03 AM
 #11

I didn't try this version, but perhaps someone can answer my questions.

1. Are OpenCK kernels editable (.cl file somewhere) or is it hard coded? If no, could you please make that an option or make it modular.
2. Are the OpenCL init values for the kernel editable? If no, could you please make that an option or make it modular.
3. How much CPU time is eaten for each GPU running?

Thanks,
Dia

The kernels are source kernels .cl, built once and then loaded as binaries from then on.
The init values are the same as those for phatk. Internally I modify the kernel to suit how my code expects output results and to patch properly with BFI INT, BITALIGN and VECTORS, and to support 4 vectors as well.
The CPU time is negligible unless you use a very low intensity level and then (paradoxically) it rises slightly because it loops more often. On my 4x6970 machine pushing 1690 Mhash/s it is using 8% cpu with the amd phenom throttled to 800Mhz.

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July 13, 2011, 05:58:53 AM
 #12

I'd like to see answers to #3 from different people because on my system it's quite high.
On my other machine with a slower CPU and another with a faster one, they get < 1% usage.

Intensity and verbosity have no effect so it might be a broken library or something.

 Merged mining, free SMS notifications, PayPal payout and much more.
http://btcstats.net/sig/JZCODg2
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July 13, 2011, 06:01:27 AM
 #13

I didn't try this version, but perhaps someone can answer my questions.

1. Are OpenCK kernels editable (.cl file somewhere) or is it hard coded? If no, could you please make that an option or make it modular.
2. Are the OpenCL init values for the kernel editable? If no, could you please make that an option or make it modular.
3. How much CPU time is eaten for each GPU running?

Thanks,
Dia

The kernels are source kernels .cl, built once and then loaded as binaries from then on.
The init values are the same as those for phatk. Internally I modify the kernel to suit how my code expects output results and to patch properly with BFI INT, BITALIGN and VECTORS, and to support 4 vectors as well.
The CPU time is negligible unless you use a very low intensity level and then (paradoxically) it rises slightly because it loops more often. On my 4x6970 machine pushing 1690 Mhash/s it is using 8% cpu with the amd phenom throttled to 800Mhz.

Sounds good, if I like CGMiner, is there any way to talk about (or edit in) new or some more init values for the kernel? I guess it could be tweaked some more for even higher performance Smiley.

Dia

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July 13, 2011, 06:03:33 AM
 #14

Sounds good, if I like CGMiner, is there any way to talk about (or edit in) new or some more init values for the kernel? I guess it could be tweaked some more for even higher performance Smiley.

Sure. Email me, post here or see me on IRC? I hang out in #bitcoin-mining and #ozcoin (the pool I use).

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July 13, 2011, 06:09:46 AM
 #15


Thanks. That doesn't look like it ever started mining. Were all the login parameters ok? Did debug show you any http error messages or the like? Unfortunately cgminer doesn't abort when it fails to connect right at the start and may just sit there looking stupid.

Alright I did typo the subdomain, this time there was a

Code:
[2011-07-13 02:06:45] Long-polling activated for http://uscentral.btcguild.com:8332/LP

before...

Code:
[2011-07-13 02:06:47] Attempting to restart thread 0, idle for more than 60 seconds

with the rest being the same.
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July 13, 2011, 06:22:28 AM
 #16

Alright I did typo the subdomain, this time there was a

Code:
[2011-07-13 02:06:45] Long-polling activated for http://uscentral.btcguild.com:8332/LP

before...

Code:
[2011-07-13 02:06:47] Attempting to restart thread 0, idle for more than 60 seconds

with the rest being the same.

Can you do the same with -D and -P and log all the output and either pastebin it or email me or something please? (feel free to XXX out your name and pass in the logs)

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July 13, 2011, 08:58:22 AM
 #17

Just try a couple of times to start it, if you're on windows. It happens to me as well...5 or 6 tries and it should work.
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July 13, 2011, 09:12:30 AM
 #18

The windows build is never quite as good because of the mingw interface. I do know the CPU usage is much much higher as a result of the pthread library. Dunno what to do about that.

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July 13, 2011, 10:26:47 AM
 #19

Here, have fun with this; it's the atom optimized code by Neil Kettle with some slight SSE4.1 mods to it.  It doesn't include any of the YMM additions or SSE horizontal math calculations I've been playing around with, but it's a good general purpose hash speed increase for CPU.  Don't forget to add -msse4.1 to your CFLAGS.  And Neil, if you read this, let me know what you think of the reordering of the commands for the prefetch.

Code:
;; SHA-256 for X86-64 for Linux, based off of:

; (c) Ufasoft 2011 http://ufasoft.com mailto:support@ufasoft.com
; Version 2011
; This software is Public Domain

; Significant re-write/optimisation and reordering by,
; Neil Kettle <mu-b@digit-labs.org>
; ~18% performance improvement

; SHA-256 CPU SSE cruncher for Bitcoin Miner

ALIGN 32
BITS 64

%define hash rdi
%define data rsi
%define init rdx

; 0 = (1024 - 256) (mod (LAB_CALC_UNROLL*LAB_CALC_PARA*16))
%define LAB_CALC_PARA 2
%define LAB_CALC_UNROLL 8

%define LAB_LOOP_UNROLL 8

extern g_4sha256_k

global CalcSha256_x64
; CalcSha256 hash(rdi), data(rsi), init(rdx)
CalcSha256_x64:

push rbx

LAB_NEXT_NONCE:

mov rcx, 64*4 ; 256 - rcx is # of SHA-2 rounds
mov rax, 16*4 ; 64 - rax is where we expand to

LAB_SHA:
push rcx
lea rcx, qword [data+rcx*4] ; + 1024
lea r11, qword [data+rax*4] ; + 256

LAB_CALC:
%macro lab_calc_blk 1

movntdqa xmm0, [r11-(15-%1)*16] ; xmm0 = W[I-15]
movdqa xmm2, xmm0 ; xmm2 = W[I-15]
movntdqa xmm4, [r11-(15-(%1+1))*16] ; xmm4 = W[I-15+1]
movdqa xmm6, xmm4 ; xmm6 = W[I-15+1]

psrld xmm0, 3 ; xmm0 = W[I-15] >> 3
movdqa xmm1, xmm0 ; xmm1 = W[I-15] >> 3
pslld xmm2, 14 ; xmm2 = W[I-15] << 14
psrld xmm4, 3 ; xmm4 = W[I-15+1] >> 3
movdqa xmm5, xmm4 ; xmm5 = W[I-15+1] >> 3
psrld xmm5, 4 ; xmm5 = W[I-15+1] >> 7
pxor xmm4, xmm5 ; xmm4 = (W[I-15+1] >> 3) ^ (W[I-15+1] >> 7)
pslld xmm6, 14 ; xmm6 = W[I-15+1] << 14
psrld xmm1, 4 ; xmm1 = W[I-15] >> 7
pxor xmm0, xmm1 ; xmm0 = (W[I-15] >> 3) ^ (W[I-15] >> 7)
pxor xmm0, xmm2 ; xmm0 = (W[I-15] >> 3) ^ (W[I-15] >> 7) ^ (W[I-15] << 14)
psrld xmm1, 11 ; xmm1 = W[I-15] >> 18
psrld xmm5, 11 ; xmm5 = W[I-15+1] >> 18
pxor xmm4, xmm6 ; xmm4 = (W[I-15+1] >> 3) ^ (W[I-15+1] >> 7) ^ (W[I-15+1] << 14)
pxor xmm4, xmm5 ; xmm4 = (W[I-15+1] >> 3) ^ (W[I-15+1] >> 7) ^ (W[I-15+1] << 14) ^ (W[I-15+1] >> 18)
pslld xmm2, 11 ; xmm2 = W[I-15] << 25
pslld xmm6, 11 ; xmm6 = W[I-15+1] << 25
pxor xmm4, xmm6 ; xmm4 = (W[I-15+1] >> 3) ^ (W[I-15+1] >> 7) ^ (W[I-15+1] << 14) ^ (W[I-15+1] >> 18) ^ (W[I-15+1] << 25)
pxor xmm0, xmm1 ; xmm0 = (W[I-15] >> 3) ^ (W[I-15] >> 7) ^ (W[I-15] << 14) ^ (W[I-15] >> 18)
pxor xmm0, xmm2 ; xmm0 = (W[I-15] >> 3) ^ (W[I-15] >> 7) ^ (W[I-15] << 14) ^ (W[I-15] >> 18) ^ (W[I-15] << 25)
paddd xmm0, [r11-(16-%1)*16] ; xmm0 = s0(W[I-15]) + W[I-16]
paddd xmm4, [r11-(16-(%1+1))*16] ; xmm4 = s0(W[I-15+1]) + W[I-16+1]
movntdqa xmm3, [r11-(2-%1)*16] ; xmm3 = W[I-2]
movntdqa xmm7, [r11-(2-(%1+1))*16] ; xmm7 = W[I-2+1]

;;;;;;;;;;;;;;;;;;

movdqa xmm2, xmm3 ; xmm2 = W[I-2]
psrld xmm3, 10 ; xmm3 = W[I-2] >> 10
movdqa xmm1, xmm3 ; xmm1 = W[I-2] >> 10
movdqa xmm6, xmm7 ; xmm6 = W[I-2+1]
psrld xmm7, 10 ; xmm7 = W[I-2+1] >> 10
movdqa xmm5, xmm7 ; xmm5 = W[I-2+1] >> 10

paddd xmm0, [r11-(7-%1)*16] ; xmm0 = s0(W[I-15]) + W[I-16] + W[I-7]
paddd xmm4, [r11-(7-(%1+1))*16] ; xmm4 = s0(W[I-15+1]) + W[I-16+1] + W[I-7+1]

pslld xmm2, 13 ; xmm2 = W[I-2] << 13
pslld xmm6, 13 ; xmm6 = W[I-2+1] << 13
psrld xmm1, 7 ; xmm1 = W[I-2] >> 17
psrld xmm5, 7 ; xmm5 = W[I-2+1] >> 17



pxor xmm3, xmm1 ; xmm3 = (W[I-2] >> 10) ^ (W[I-2] >> 17)
psrld xmm1, 2 ; xmm1 = W[I-2] >> 19
pxor xmm3, xmm2 ; xmm3 = (W[I-2] >> 10) ^ (W[I-2] >> 17) ^ (W[I-2] << 13)
pslld xmm2, 2 ; xmm2 = W[I-2] << 15
pxor xmm7, xmm5 ; xmm7 = (W[I-2+1] >> 10) ^ (W[I-2+1] >> 17)
psrld xmm5, 2 ; xmm5 = W[I-2+1] >> 19
pxor xmm7, xmm6 ; xmm7 = (W[I-2+1] >> 10) ^ (W[I-2+1] >> 17) ^ (W[I-2+1] << 13)
pslld xmm6, 2 ; xmm6 = W[I-2+1] << 15



pxor xmm3, xmm1 ; xmm3 = (W[I-2] >> 10) ^ (W[I-2] >> 17) ^ (W[I-2] << 13) ^ (W[I-2] >> 19)
pxor xmm3, xmm2 ; xmm3 = (W[I-2] >> 10) ^ (W[I-2] >> 17) ^ (W[I-2] << 13) ^ (W[I-2] >> 19) ^ (W[I-2] << 15)
paddd xmm0, xmm3 ; xmm0 = s0(W[I-15]) + W[I-16] + s1(W[I-2]) + W[I-7]
pxor xmm7, xmm5 ; xmm7 = (W[I-2+1] >> 10) ^ (W[I-2+1] >> 17) ^ (W[I-2+1] << 13) ^ (W[I-2+1] >> 19)
pxor xmm7, xmm6 ; xmm7 = (W[I-2+1] >> 10) ^ (W[I-2+1] >> 17) ^ (W[I-2+1] << 13) ^ (W[I-2+1] >> 19) ^ (W[I-2+1] << 15)
paddd xmm4, xmm7 ; xmm4 = s0(W[I-15+1]) + W[I-16+1] + s1(W[I-2+1]) + W[I-7+1]

movdqa [r11+(%1*16)], xmm0
movdqa [r11+((%1+1)*16)], xmm4
%endmacro

%assign i 0
%rep    LAB_CALC_UNROLL
        lab_calc_blk i
%assign i i+LAB_CALC_PARA
%endrep

add r11, LAB_CALC_UNROLL*LAB_CALC_PARA*16
cmp r11, rcx
jb LAB_CALC

pop rcx
mov rax, 0

; Load the init values of the message into the hash.

movntdqa xmm7, [init]
pshufd xmm5, xmm7, 0x55 ; xmm5 == b
pshufd xmm4, xmm7, 0xAA ; xmm4 == c
pshufd xmm3, xmm7, 0xFF ; xmm3 == d
pshufd xmm7, xmm7, 0 ; xmm7 == a

movntdqa xmm0, [init+4*4]
pshufd xmm8, xmm0, 0x55 ; xmm8 == f
pshufd xmm9, xmm0, 0xAA ; xmm9 == g
pshufd xmm10, xmm0, 0xFF ; xmm10 == h
pshufd xmm0, xmm0, 0 ; xmm0 == e

LAB_LOOP:

;; T t1 = h + (Rotr32(e, 6) ^ Rotr32(e, 11) ^ Rotr32(e, 25)) + ((e & f) ^ AndNot(e, g)) + Expand32<T>(g_sha256_k[j]) + w[j]

%macro lab_loop_blk 0
movntdqa xmm6, [data+rax*4]
paddd xmm6, g_4sha256_k[rax*4]
add rax, 4

paddd xmm6, xmm10 ; +h

movdqa xmm1, xmm0
movdqa xmm2, xmm9
pandn xmm1, xmm2 ; ~e & g

movdqa xmm10, xmm2 ; h = g
movdqa xmm2, xmm8 ; f
movdqa xmm9, xmm2 ; g = f

pand xmm2, xmm0 ; e & f
pxor xmm1, xmm2 ; (e & f) ^ (~e & g)
movdqa xmm8, xmm0 ; f = e

paddd xmm6, xmm1 ; Ch + h + w[i] + k[i]

movdqa xmm1, xmm0
psrld xmm0, 6
movdqa xmm2, xmm0
pslld xmm1, 7
psrld xmm2, 5
pxor xmm0, xmm1
pxor xmm0, xmm2
pslld xmm1, 14
psrld xmm2, 14
pxor xmm0, xmm1
pxor xmm0, xmm2
pslld xmm1, 5
pxor xmm0, xmm1 ; Rotr32(e, 6) ^ Rotr32(e, 11) ^ Rotr32(e, 25)
paddd xmm6, xmm0 ; xmm6 = t1

movdqa xmm0, xmm3 ; d
paddd xmm0, xmm6 ; e = d+t1

movdqa xmm1, xmm5 ; =b
movdqa xmm3, xmm4 ; d = c
movdqa xmm2, xmm4 ; c
pand xmm2, xmm5 ; b & c
pand xmm4, xmm7 ; a & c
pand xmm1, xmm7 ; a & b
pxor xmm1, xmm4
movdqa xmm4, xmm5 ; c = b
movdqa xmm5, xmm7 ; b = a
pxor xmm1, xmm2 ; (a & c) ^ (a & d) ^ (c & d)
paddd xmm6, xmm1 ; t1 + ((a & c) ^ (a & d) ^ (c & d))

movdqa xmm2, xmm7
psrld xmm7, 2
movdqa xmm1, xmm7
pslld xmm2, 10
psrld xmm1, 11
pxor xmm7, xmm2
pxor xmm7, xmm1
pslld xmm2, 9
psrld xmm1, 9
pxor xmm7, xmm2
pxor xmm7, xmm1
pslld xmm2, 11
pxor xmm7, xmm2
paddd xmm7, xmm6 ; a = t1 + (Rotr32(a, 2) ^ Rotr32(a, 13) ^ Rotr32(a, 22)) + ((a & c) ^ (a & d) ^ (c & d));
%endmacro

%assign i 0
%rep    LAB_LOOP_UNROLL
        lab_loop_blk
%assign i i+1
%endrep

cmp rax, rcx
jb LAB_LOOP

; Finished the 64 rounds, calculate hash and save

movntdqa xmm1, [rdx]
pshufd xmm2, xmm1, 0x55
paddd xmm5, xmm2
pshufd xmm6, xmm1, 0xAA
paddd xmm4, xmm6
pshufd xmm11, xmm1, 0xFF
paddd xmm3, xmm11
pshufd xmm1, xmm1, 0
paddd xmm7, xmm1

movntdqa xmm1, [rdx+4*4]
pshufd xmm2, xmm1, 0x55
paddd xmm8, xmm2
pshufd xmm6, xmm1, 0xAA
paddd xmm9, xmm6
pshufd xmm11, xmm1, 0xFF
paddd xmm10, xmm11
pshufd xmm1, xmm1, 0
paddd xmm0, xmm1

movdqa [hash+0*16], xmm7
movdqa [hash+1*16], xmm5
movdqa [hash+2*16], xmm4
movdqa [hash+3*16], xmm3
movdqa [hash+4*16], xmm0
movdqa [hash+5*16], xmm8
movdqa [hash+6*16], xmm9
movdqa [hash+7*16], xmm10

LAB_RET:
pop rbx
ret

Funroll_Loops, the theoretically quicker breakfast cereal!
Check out http://www.facebook.com/JupiterICT for all of your computing needs.  If you need it, we can get it.  We have solutions for your computing conundrums.  BTC accepted!  12HWUSguWXRCQKfkPeJygVR1ex5wbg3hAq
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July 13, 2011, 10:57:39 AM
 #20

@d3m0n1q_733rz is that different to the existing "atom" asm code in cgminer? does it need specific cpu support, and if so I'll need to have it as a separate optional assembly miner.

New windows build.
http://ck.kolivas.org/apps/cgminer-1.2.4-win32.zip

New Source tarball.
http://ck.kolivas.org/apps/cgminer-1.2.4-1.tar.bz2

Both include the new dynamic feature. Disable for dedicated mining!

Discussed the other problem of TurdHurdur's (off the forum) and it turns out it was missing the kernel file because he had done "make install" which doesn't really work properly unless you run from the directory you install to. The files should be all together in the same directory.

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2% Fee Solo mining at solo.ckpool.org
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