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Author Topic: An (even more) optimized version of cpuminer (pooler's cpuminer, CPU-only)  (Read 1529496 times)
pekv2
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July 13, 2012, 05:51:39 AM
 #361

anything? Like to get this going.

All I did was, backed up my OS as an image, secured erased my SSD, restored the OS image back to my SSD.
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pooler
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July 13, 2012, 06:59:12 AM
 #362

Receiving this error with LTC

Code:
HTTP request failed: necessary data rewind wasn't possible

Any idea how I can fix it? Was working fine but then I had to restore my OS image this morning, and when did so, I started up LTC and got the error.

Could you please provide some more details, such as what options you are using?
Are you mining through a proxy?

No proxy.

Code:
minerd.exe --url http://litecoinpool.org/ --userpass removed:removed --threads 3

I also, doubled checked to make sure the time was synced with the internet.

You forgot to specify the port.

minerd.exe --url http://litecoinpool.org:9332/ --userpass removed:removed --threads 3

BTC: 15MRTcUweNVJbhTyH5rq9aeSdyigFrskqE · LTC: LTCPooLqTK1SANSNeTR63GbGwabTKEkuS7
pekv2
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July 13, 2012, 07:04:31 AM
 #363

Receiving this error with LTC

Code:
HTTP request failed: necessary data rewind wasn't possible

Any idea how I can fix it? Was working fine but then I had to restore my OS image this morning, and when did so, I started up LTC and got the error.

Could you please provide some more details, such as what options you are using?
Are you mining through a proxy?

No proxy.

Code:
minerd.exe --url http://litecoinpool.org/ --userpass removed:removed --threads 3

I also, doubled checked to make sure the time was synced with the internet.

You forgot to specify the port.

minerd.exe --url http://litecoinpool.org:9332/ --userpass removed:removed --threads 3


I will mail you hammer and a plane ticket to come and bash me. <jk

That's me! overlooking files. *facepalm*

Man, pooler, thanks.
pekv2
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July 13, 2012, 07:11:40 AM
 #364

Now, I'm banging out awesome hash rate. All together, 844.49 khash/s.
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July 13, 2012, 07:14:11 AM
 #365

That a great hash rate, I which I had that kind of rate.
pekv2
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July 13, 2012, 07:21:10 AM
 #366

Not as great as bitlanes, which is nine thousand khash/s.

I should make with due. Lots of tweaks here and there.

Your name looks familiar to me.
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July 27, 2012, 07:14:41 PM
 #367

sorry for the bump (and for my very very very poor hash rate (this is merely a test) but....

is every thread mining individually, or every thread mining together (by this i mean, instead of getting ~30>khps for a single mining "operation") or not? (am i getting 8 "individual" mining "operations" at 3.3khps each ?)

if this is the case is there a way for me to make all threads mine together instead of individually?
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July 27, 2012, 09:38:50 PM
 #368

It is 8 individual mining threads, so 8 x 3.3khps = 26.4khps.
It is not possible to make all threads mine together because every step in calculating a hash is dependent on the previous one.
Well, maybe some little steps are possible to do in parallel, but keeping the threads in sync would cost much time and make overall hashing slower.
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July 28, 2012, 07:46:29 PM
 #369

How can i configure this? There were only 3 files in the zip and no config or txt. Only starting the exe results in an error because he cant reach the Server.

Thanks!
Sebastian

 

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pieppiep
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July 28, 2012, 07:52:29 PM
 #370

If you start it in a console with --help it tells you this :

Usage: minerd [OPTIONS]
Options:
  -o, --url=URL         URL of mining server (default: http://127.0.0.1:9332/)
  -O, --userpass=U:P    username:password pair for mining server
  -u, --user=USERNAME   username for mining server
  -p, --pass=PASSWORD   password for mining server
  -x, --proxy=[PROTOCOL://]HOST[:PORT]  connect through a proxy
  -t, --threads=N       number of miner threads (default: number of processors)
  -r, --retries=N       number of times to retry if a network call fails
                          (default: retry indefinitely)
  -R, --retry-pause=N   time to pause between retries, in seconds (default: 30)
  -T, --timeout=N       network timeout, in seconds (default: 180)
  -s, --scantime=N      upper bound on time spent scanning current work,
                          in seconds (default: 5)
      --no-longpoll     disable X-Long-Polling support
  -q, --quiet           disable per-thread hashmeter output
  -D, --debug           enable debug output
  -P, --protocol-dump   verbose dump of protocol-level activities
  -c, --config=FILE     load a JSON-format configuration file
  -V, --version         display version information and exit
  -h, --help            display this help text and exit

So the most simple way is this :

minerd --url http://poolofyourchoice:9332/ --userpass yourusername:yourpassword
SebastianJu
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July 28, 2012, 08:14:41 PM
 #371

Thanks pieppiep!

 

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July 28, 2012, 11:50:22 PM
 #372

Hm... looks like my Intel core 2 Duo T7700 doesnt profit from the changes. I made some tests with the following result:

Old, original dll
-----------
original exe - 6.72khash/s

New dll
-----------
original exe - 6.82khash/s
new exe - 2.55khash/s
minerd-ssse3-core2 - 2,6khash/s
minerd-amdfam10-sse4a - 2,68khash/s
minerd-corei7-avx - crash
minerd-i7 - crash

scryptminer - 6,6khash/s

So it looks like the original.exe with the new dll has a slight better result. I tested all test with 2 threads and 5 seconds update. Then i created an excelsheet of all the values (sometimes some hundred values).

 

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zorgberg
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August 04, 2012, 04:09:08 AM
 #373

The Windows 32-bit binary triggers my spybot as a backdoor/trojan..  What up with that?
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August 04, 2012, 04:41:07 AM
 #374

The Windows 32-bit binary triggers my spybot as a backdoor/trojan..  What up with that?
CGminer also sets off my anti-virus too.

Someone probably was embedding the miners in some trojans they were sending out to get their botnet mining for them.

-- Smoov
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August 04, 2012, 05:35:43 AM
 #375

The Windows 32-bit binary triggers my spybot as a backdoor/trojan..  What up with that?
CGminer also sets off my anti-virus too.

Someone probably was embedding the miners in some trojans they were sending out to get their botnet mining for them.

-- Smoov


Not necessarily. At least my antivirus hates almost every Bitcoin program I use. (Example from a few days ago: "VIRUS DETECTED: Win32.BitcoinMiner" for CGMiner.)

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Smoovious
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August 04, 2012, 06:11:17 AM
 #376

The Windows 32-bit binary triggers my spybot as a backdoor/trojan..  What up with that?
CGminer also sets off my anti-virus too.

Someone probably was embedding the miners in some trojans they were sending out to get their botnet mining for them.

-- Smoov


Not necessarily. At least my antivirus hates almost every Bitcoin program I use. (Example from a few days ago: "VIRUS DETECTED: Win32.BitcoinMiner" for CGMiner.)
Yeah, but it wouldn't be logged as a virus (with that label), unless it was found in some malware it got to analyze. Since it is labelled specifically Win32.BitcoinMiner, they know what it was, not just some heuristic false positive...

besides... how many people have we had coming to the forums and IRC, asking how to do that very kind of install on a system automatically?

-- Smoov
pooler
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August 05, 2012, 05:58:34 PM
 #377

Version 2.2.3

  • This version includes the long-awaited ARM NEON implementation of both scrypt and SHA-256d. To use it you have to specify "-mfpu=neon" in CFLAGS when compiling. Since there is no portable way of detecting the capabilities of an ARM processor at runtime, the resulting binary will only be compatible with those systems that support the NEON instruction set (not all ARMv7-based SoCs do). According to my tests, this version brings a 10% speedup to Cortex-A8 and a 40% speedup to Cortex-A9.
  • Slight speed improvement (2-3%) for the AVX-specific scrypt implementation.
  • A --benchmark option is now available to benchmark a system without the need of connecting to a work provider.
  • I've added some architecture-specific notes to the README.

The source code is, as always, available at GitHub. Binaries are available here. This time I've also built a couple static binaries for Linux (x86 and x86-64), for those people who really don't want to bother compiling the miner themselves.

BTC: 15MRTcUweNVJbhTyH5rq9aeSdyigFrskqE · LTC: LTCPooLqTK1SANSNeTR63GbGwabTKEkuS7
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August 05, 2012, 06:12:35 PM
 #378

    • A --benchmark option is now available to benchmark a system without the need of connecting to a work provider.

    can you tell more about that option?

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    pekv2
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    August 05, 2012, 06:56:56 PM
     #379

    Thanks Pooler!

    Gained 1 kh/s Smiley.
    Greedi
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    August 05, 2012, 07:10:16 PM
     #380

    Thanks Pooler!

    Gained 1 kh/s Smiley.

    i've lost 0.7 kh/s

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