Topic: An (even more) optimized version of cpuminer (pooler's cpuminer, CPU-only) - page 51. (Read 1958475 times)
August 10, 2012, 02:08:21 PM
thanks for your answers guyz
August 10, 2012, 01:28:20 PM
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.
August 10, 2012, 01:25:02 PM
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.
August 10, 2012, 01:03:06 PM
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 ?
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 ?
August 10, 2012, 10:12:38 AM
hello. where can i find a sample configuration file for minerd binary on Linux 32?
A sample configuration file (example-cfg.json) is included in the source tarball. Remember that you have to use the -c option if you want to use a configuration file. See --help output for more info.i have an Intel i3 2310M with two cores and four threads. Is it normal, to have only 2kilohash/s ?
If that is per-thread and in 32-bit mode, it sounds reasonable.it's not per-thread, its a total. I guess i'm doing something wrong. I'll test it again with the .json.
August 10, 2012, 07:25:07 AM
i have an Intel i3 2310M with two cores and four threads. Is it normal, to have only 2kilohash/s ?
I don't think it is. Sounds very low, even for an i3. August 10, 2012, 07:20:39 AM
hello. where can i find a sample configuration file for minerd binary on Linux 32?
A sample configuration file (example-cfg.json) is included in the source tarball. Remember that you have to use the -c option if you want to use a configuration file. See --help output for more info.i have an Intel i3 2310M with two cores and four threads. Is it normal, to have only 2kilohash/s ?
If that is per-thread and in 32-bit mode, it sounds reasonable. August 10, 2012, 07:02:36 AM
i have an Intel i3 2310M with two cores and four threads. Is it normal, to have only 2kilohash/s ?
August 10, 2012, 01:34:17 AM
Thanks pooler! Saw improvement right away on a Core i5-3570 K. Thanks
August 09, 2012, 11:03:55 PM
The scratchpad used for scrypt is 128.5kB, so a 256kB L2 cache is enough to not have to use the L3 cache. (except maybe when a lot of task switching is done)
For processors without cache or a very small cache you want lower latency more than a higher bandwidth.
For processors without cache or a very small cache you want lower latency more than a higher bandwidth.
It's 256kB but 8-WAY set associative, essentially 32KB per set.
August 09, 2012, 04:49:36 PM
hello. where can i find a sample configuration file for minerd binary on Linux 32?
August 09, 2012, 03:01:43 PM
The scratchpad used for scrypt is 128.5kB, so a 256kB L2 cache is enough to not have to use the L3 cache. (except maybe when a lot of task switching is done)
For processors without cache or a very small cache you want lower latency more than a higher bandwidth.
For processors without cache or a very small cache you want lower latency more than a higher bandwidth.
August 09, 2012, 02:55:48 PM
I know sha doesn't use multiplications and as fas as I know scrypt doesn't either.
So these instructions can't be used.
Yea, I asked ufasoft if it'd help his miner and he said no. He said scrypt depends a lot on RAM latency. Is it just latency, or does bandwidth count too? ie my quad channel X79 has some benefit? Or should I look more at shaving CAS latency as low as possible? Would either make any real difference?So these instructions can't be used.
August 09, 2012, 02:32:51 PM
I know sha doesn't use multiplications and as fas as I know scrypt doesn't either.
So these instructions can't be used.
Yea, I asked ufasoft if it'd help his miner and he said no. He said scrypt depends a lot on RAM latency. Is it just latency, or does bandwidth count too? ie my quad channel X79 has some benefit? Or should I look more at shaving CAS latency as low as possible? Would either make any real difference?So these instructions can't be used.
August 09, 2012, 02:19:39 PM
Quote from: wikipedia
The FMA instruction set is the name of a future extension to the 128 and 256-bit SIMD instructions in the X86 microprocessor instruction set to perform fused multiply–add (FMA) operations.
andQuote from: wikipedia
The FMA operation has the form:
d=a+b*c
I know sha doesn't use multiplications and as fas as I know scrypt doesn't either.d=a+b*c
So these instructions can't be used.
August 09, 2012, 01:03:48 PM
Quote from: wikipedia
The FMA instruction set is the name of a future extension to the 128 and 256-bit SIMD instructions in the X86 microprocessor instruction set to perform fused multiply–add (FMA) operations.
andQuote from: wikipedia
The FMA operation has the form:
d=a+b*c
I know sha doesn't use multiplications and as fas as I know scrypt doesn't either.d=a+b*c
So these instructions can't be used.
August 09, 2012, 12:50:45 PM
Given that AMD now has Piledriver core Ax chips out, will there be FMA support added to the miner? Would FMA even help with the scrypt algorithm?
August 08, 2012, 04:55:14 PM
I get this error in OS X Mountain Lion:
dyld: Library not loaded: /opt/local/lib/libidn.11.dylib
libidn is installed via fink, so I'm not sure what's up?
This also happens in Lion.dyld: Library not loaded: /opt/local/lib/libidn.11.dylib
libidn is installed via fink, so I'm not sure what's up?
Forcing it to work with brew then causes an error on SSL.
Is there an official way to make this work?
EDIT: I got pissed and forced it all, but I am pretty sure this isn't the way to do it. You may need to brew install some packages if they are not already on your system:
Code:
mkdir -p /opt/local/lib
sudo ln /usr/local/Cellar/libidn/1.23/lib/libidn.11.dylib /opt/local/lib/libidn.11.dylib
sudo ln /usr/local/Cellar/openssl/1.0.1a/lib/libssl.1.0.0.dylib /opt/local/lib/libssl.1.0.0.dylib
sudo ln /usr/local/Cellar/openssl/1.0.1a/lib/libcrypto.1.0.0.dylib /opt/local/lib/libcrypto.1.0.0.dylib
sudo ln /usr/local/Cellar/libidn/1.23/lib/libidn.11.dylib /opt/local/lib/libidn.11.dylib
sudo ln /usr/local/Cellar/openssl/1.0.1a/lib/libssl.1.0.0.dylib /opt/local/lib/libssl.1.0.0.dylib
sudo ln /usr/local/Cellar/openssl/1.0.1a/lib/libcrypto.1.0.0.dylib /opt/local/lib/libcrypto.1.0.0.dylib
August 06, 2012, 10:24:55 AM
[...]
Compiling libcurl on Linux should be as simple as running configure & make. I disabled some features such as SSL to keep the size down, but that's not at all necessary.
Anyway, once I have a libcurl.a, I just put its path in the environment variable LIBCURL along with -lrt (and possibly other libraries, depending on what features libcurl.a was built with) and build the miner as usual.
Compiling libcurl on Linux should be as simple as running configure & make. I disabled some features such as SSL to keep the size down, but that's not at all necessary.
Anyway, once I have a libcurl.a, I just put its path in the environment variable LIBCURL along with -lrt (and possibly other libraries, depending on what features libcurl.a was built with) and build the miner as usual.
Arrrgh. RHEL 'libcurl' depends on '-lgssapi_krb5', that one I was missing.
August 06, 2012, 04:51:12 AM
[...] 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.
Static binaries? Uh, nice!
Due to the libcurl deps I'm failing badly to a build static bin myself (on RHEL5). What flags did you set?
Compiling libcurl on Linux should be as simple as running configure & make. I disabled some features such as SSL to keep the size down, but that's not at all necessary.
Anyway, once I have a libcurl.a, I just put its path in the environment variable LIBCURL along with -lrt (and possibly other libraries, depending on what features libcurl.a was built with) and build the miner as usual.
Jump to: