An (even more) optimized version of cpuminer (pooler's cpuminer, CPU-only)

[stepkrav]

ok i got up to 8kilohash/s.

Another question : how may i test, if i am connected to the litecoin network while mining, and dont mine "blindly" ? I mean to check my CPU really mines for the litecoin network, and doesnt just make hashes for nothing.

Finally, at this rate 8khash, although i can get free electricity, it doesnt seem like profiting much. Am i wrong ?

[1715452215]

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[muqali]

Burnside's pool has a profit calculator. I ran 8kh/s. In a year you'd make $16. Assuming the same BTC, LTC, USD prices.

[pekv2]

Burnside's pool has a profit calculator. I ran 8kh/s. In a year you'd make $16. Assuming the same BTC, LTC, USD prices.

Assuming the difficulty is the same in a year from when you have done an estimate.

[stepkrav]

thanks for your answers guyz

[Greedi]

someone ther can post a link with a list over CPUs with arm/neon ?.. i can't find any by googling

[muqali]

someone ther can post a link with a list over CPUs with arm/neon ?.. i can't find any by googling

There is a miner for Android which has NEON extensions you can enable. There is a spreadsheet there to view also. See the URL below

https://bitcointalk.org/index.php?topic=93276.80

[muqali]

Any more assembly you could do some voodoo on to really crank out more performance on the very latest Sandy Bridge E and Ivy Bridge CPUs? Also, with the coming successor to AMD's Trinity APUs, their CPU portion and GPU portion will have fully shared memory. I'm thinking that  will lead to some interesting possibilities for using both to mine together in a way never before possible. Instead of having to feed memory to the GPU, it is just there. At least as I understand it. Do you think that will bring some good things to mining hash power?

[K1773R]

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.

where can i find those? im getting annoyed by all the deps of the libcurl.a, those in the download section arent static linked ones.

[pooler]

where can i find those? im getting annoyed by all the deps of the libcurl.a, those in the download section arent static linked ones.

Code:

$ ldd */minerd
x86/minerd:
	linux-gate.so.1 =>  (0xf77c1000)
	librt.so.1 => /lib/i386-linux-gnu/librt.so.1 (0xf7799000)
	libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0xf777e000)
	libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xf75d8000)
	/lib/ld-linux.so.2 (0xf77c2000)
x86_64/minerd:
	linux-vdso.so.1 =>  (0x00007fff56bd6000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f0320a77000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f032085a000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f032049c000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f0320c9e000)

Here libcurl looks statically linked to me.

By the way, I have updated the x86-64 Linux binary to include the most recent version of libcurl (7.27.0). Tested on Debian Squeeze, Debian Wheezy, Ubuntu 12.04, Mint 13, Gentoo.

[K1773R]

where can i find those? im getting annoyed by all the deps of the libcurl.a, those in the download section arent static linked ones.

Code:

$ ldd */minerd
x86/minerd:
	linux-gate.so.1 =>  (0xf77c1000)
	librt.so.1 => /lib/i386-linux-gnu/librt.so.1 (0xf7799000)
	libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0xf777e000)
	libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xf75d8000)
	/lib/ld-linux.so.2 (0xf77c2000)
x86_64/minerd:
	linux-vdso.so.1 =>  (0x00007fff56bd6000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f0320a77000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f032085a000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f032049c000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f0320c9e000)

Here libcurl looks statically linked to me.

By the way, I have updated the x86-64 Linux binary to include the most recent version of libcurl (7.27.0). Tested on Debian Squeeze, Debian Wheezy, Ubuntu 12.04, Mint 13, Gentoo.

sry, i only checked minerd with file shame on me ^^

[soniq]

Looking to get started on this with W7 x64 and an i7 3930K, I tried running the minerd.exe and get an json_rpc_call failed message. This is with or without a cfg.json file present in the directory. I ran through the first 6 pages or so of this post and didn't see any full Windows setup. If someone could give me a step by step please I would be happy as a pig in shit.

The online help is your friend, just run "minerd --help". You will get a detailed description of all supported options, and see that you have to use "-c" if you want to use a configuration file.

What does the --s flag do?

There is no --s flag. There's a --scantime flag, whose short version is -s. The miner will accept --s because in the Windows version there's just one long option that starts with "s", and getopt is indulgent. Please note that, since this may change in the future, you should not be using shortened long options such as --s when writing scripts or batch files.
That said, you can safely ignore the option when mining at a pool, since it is ineffective when long polling is enabled. If you are solo mining, you can set it to as low as 1 to minimize the likeliness of generating orphaned blocks.
[/quote]

How do you run minerd --help ?  when there is no prompt?

And how do we create  cfg.json file?

Cheers
Soniq

[LegitBit]

Is there a newer build for OSX 10.8 ?

[420]

json_rpc_call failed

see my post and also a newbie with same problem:

https://bitcointalk.org/index.php?topic=117002.new#new

[gigica viteazu`]

any chance to implement some kind of statistic portion of the window, something like CGMiner ?

[pooler]

any chance to implement some kind of statistic portion of the window, something like CGMiner ?

I don't think I'm going to add the curses library as a dependency.

[gigica viteazu`]

I don't think I'm going to add the curses library as a dependency.

any other way to show some overall statistics, from time to time or maybe on exit

[pooler]

I don't think I'm going to add the curses library as a dependency.

any other way to show some overall statistics, from time to time or maybe on exit

Just to get an idea, what kind of statistics would you like to see?

[Remember remember the 5th of November]

Adding curses to the miner will make it seem more like cgminer and I don't think he wants to make "another" cgminer.

[K1773R]

Adding curses to the miner will make it seem more like cgminer and I don't think he wants to make "another" cgminer.

libcurses isnt an invention of cgminer!

[gigica viteazu`]

Just to get an idea, what kind of statistics would you like to see?

something like: total hashrate, running time, server ip/port, blocks found (if any) etc.