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Author Topic: [ANN]: cpuminer-opt v3.8.8.1, open source optimized multi-algo CPU miner  (Read 411292 times)
Gehacktesmacher
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March 11, 2018, 10:51:34 PM
 #3561

Quote
if test "x$OS" = "xWindows_NT" ; then
   # MinGW
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
else
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthread",[])
fi


Hi joblo,
thx for this. It seems there is a bug in the Code Smiley

Freshly downloaded the sources on another machine and gone through configure.ac
My version shows as follows, which explains the problem we got. (I manually edited and corrected it, and it works fine now)
Another thing is that I have to install libgmpv4-dev to meet another requirement, but after that cpuminer binary got compiled fine Cheesy

if test "x$OS" = "xWindows_NT" ; then
   # MinGW
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
else
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
fi

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joblo
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March 12, 2018, 12:24:57 AM
 #3562

Hi joblo,
thx for this. It seems there is a bug in the Code Smiley

Freshly downloaded the sources on another machine and gone through configure.ac
My version shows as follows, which explains the problem we got. (I manually edited and corrected it, and it works fine now)
Another thing is that I have to install libgmpv4-dev to meet another requirement, but after that cpuminer binary got compiled fine Cheesy

if test "x$OS" = "xWindows_NT" ; then
   # MinGW
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
else
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
fi

Where did you get the source code? That's not what's on my github.

cpuminer-opt developer, https://bitcointalk.org/index.php?topic=1326803.0
BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,
ETH: 0x72122edabcae9d3f57eab0729305a425f6fef6d0
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March 12, 2018, 06:46:20 AM
 #3563

Hi joblo,
thx for this. It seems there is a bug in the Code Smiley

Freshly downloaded the sources on another machine and gone through configure.ac
My version shows as follows, which explains the problem we got. (I manually edited and corrected it, and it works fine now)
Another thing is that I have to install libgmpv4-dev to meet another requirement, but after that cpuminer binary got compiled fine Cheesy

if test "x$OS" = "xWindows_NT" ; then
   # MinGW
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
else
   AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
fi

Where did you get the source code? That's not what's on my github.

this is how it looks after running "winbuild-cross.sh"

revert the file to original for "linux mode"
"git checkout -- configure.ac"

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March 14, 2018, 05:19:15 PM
 #3564

Could someone explain me this, please:

I5-3340M
YescryptR16
cpuminer-sse2

1 core
175 H/S

2 core
core 0 102 H/S
core 1 102 H/S

3 core
core 0 96 H/S
core 1 96 H/S
core 2 159 H/S !!!

4 core
core 0 94 H/S
core 1 94 H/S
core 2 94 H/S
core 3 94 H/S
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March 14, 2018, 07:41:27 PM
 #3565

It's called Hyperthreading, google it.

cpuminer-opt developer, https://bitcointalk.org/index.php?topic=1326803.0
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March 14, 2018, 08:09:04 PM
 #3566

Could someone explain me this, please:

I5-3340M
YescryptR16
cpuminer-sse2

1 core
175 H/S

2 core
core 0 102 H/S
core 1 102 H/S
...
It's called Hyperthreading, google it.

I belive it's calling TurboBoost... Maybe the YescryptR16 algo it's very sensitive to the cpu clock frequency and when only one core worked TurboBoost run this core on maximum clock frequency and slow down clock frequency when more core utilized.
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March 14, 2018, 10:46:40 PM
 #3567

I belive it's calling TurboBoost... Maybe the YescryptR16 algo it's very sensitive to the cpu clock frequency and when only one core worked TurboBoost run this core on maximum clock frequency and slow down clock frequency when more core utilized.

Please don't speculate. YescryptR16 is less sensitve to CPU clock because it's memory hard. Adding more
CPU threads when memory bandwidth is saturated just causes CPU stalls. You also don't seem to
understand turboboost either. Turboboost only varies the CPU clock by about 15% and all cores run at the
same freq. Neither is the case with the data provided.

cpuminer-opt developer, https://bitcointalk.org/index.php?topic=1326803.0
BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,
ETH: 0x72122edabcae9d3f57eab0729305a425f6fef6d0
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March 15, 2018, 12:34:46 AM
 #3568

Could someone explain me this, please:

I5-3340M
YescryptR16
cpuminer-sse2

1 core
175 H/S

2 core
core 0 102 H/S
core 1 102 H/S
...
It's called Hyperthreading, google it.

I belive it's calling TurboBoost... Maybe the YescryptR16 algo it's very sensitive to the cpu clock frequency and when only one core worked TurboBoost run this core on maximum clock frequency and slow down clock frequency when more core utilized.

This processor is 2.7 GHz base with 3.4 boost
I understand that when using 1 core it is working at 3.4 & when using 2 i at 2.7

What I don't understand is why when using 3 cores the 3st is giving much more hash rate than the others.
I think I must learn more about HT Wink

Thank you for your answers.
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March 15, 2018, 05:12:40 AM
 #3569

Forget about turboboost, it's just a slick way to make something bad sound good.
With all cores running the CPU produces too much heat at full speed so the clock is throtled back.

Your CPU has 2 physical cores but can run 4 logical threads. HT allows 2 threads to run on
a single core but they share resources. Two threads on one core using HT is not as fast as
each thread on a dedicated core. That's why you saw the numbers you did.

cpuminer-opt developer, https://bitcointalk.org/index.php?topic=1326803.0
BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,
ETH: 0x72122edabcae9d3f57eab0729305a425f6fef6d0
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March 15, 2018, 05:46:26 AM
 #3570

Ideas for bitcoin games: download on our OS and write to any Hard drive / SSD / even USB drive about our identity.
- after that enter the email address in our config.txt file and boot rig
- login to dashboard simplemining.net using the same email we use and start managing the Smiley rig
- we can just test it for free and then pay 2 $ per rig per month
- If new miners apply by using auto-update system
- at least 1GB of system memory used (depending on how many GPUs are used from miners)
- Linux, programming, scripting, mining is a Smiley hobby we have

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March 15, 2018, 01:43:46 PM
 #3571

Spam! Spam! Spam! Spam!

No Spam here please.

cpuminer-opt developer, https://bitcointalk.org/index.php?topic=1326803.0
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March 16, 2018, 02:18:31 AM
 #3572

plexmen, if you want better results - you must overclock your northbridge to increase speed you l1,l2,l3 etc cash.
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March 17, 2018, 08:42:47 AM
 #3573

How to do cpu affinity and cpu max use  in this good prog?  Need only 10101010 cpu  and 50%
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March 17, 2018, 08:58:18 AM
 #3574

How to do cpu affinity and cpu max use  in this good prog?  Need only 10101010 cpu  and 50%

Do it in Windows task manager, details tab, right click on the program, set affinity, that's how I do it.
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March 18, 2018, 09:53:02 AM
 #3575

How to do cpu affinity and cpu max use  in this good prog?  Need only 10101010 cpu  and 50%

-t 4 --cpu-affinity 0x55
itbrnnet
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March 18, 2018, 04:22:52 PM
 #3576

Hello!
Are there any chances for algo YescryptR32 to be supported? There's a new coin called WAVI (https://bitcointalk.org/index.php?topic=3146751.0) which is based on this algo.

Thanks beforehand.
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March 18, 2018, 05:00:10 PM
 #3577

cpuminer-opt-3.8.4

Added yescryptr32 algo for WAVI coin.
Added URL to API data.
Improved detection of __int128 support (Linux only)
Compile support for CPUs without SSSE3 (no binary support)

https://github.com/JayDDee/cpuminer-opt/releases/tag/v3.8.4

Additional notes:

This release may fix some recently reported compile issues related to unsupported
SIMD instructions and lack of support for __int128. This may help some older AMD CPUs
and Linux distributions that previously failed to compile.

There may be some other unknown underlying issues so YMMV. In particular Centos 6
requires a newer version of gmp that is avalable for that release.

There is no Windows binary for CPUs with SSE2 but not SSSE3. cpuminer-sse2 is built for
Intel Core2 which includes SSSE3. However, I can be bribed.

cpuminer-opt developer, https://bitcointalk.org/index.php?topic=1326803.0
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March 18, 2018, 07:52:43 PM
 #3578

Can you take a look at the Argon2d algo and add it?
There seem to be 2 variants, for 2 coins (wonder whats the difference between the algos, but the hashrate is about 3 times faster on Credits coin than on Dynamic)

https://github.com/BeastPool/cpuminer-argon2d

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March 19, 2018, 01:33:24 AM
 #3579

Can you take a look at the Argon2d algo and add it?
There seem to be 2 variants, for 2 coins (wonder whats the difference between the algos, but the hashrate is about 3 times faster on Credits coin than on Dynamic)

https://github.com/BeastPool/cpuminer-argon2d


It looks like the same algo but with different parameters. It should be a straightforward implementation
because it was forked from cpuminer-opt. But I'll probably rework it to reduce code duplication/triplication.

cpuminer-opt developer, https://bitcointalk.org/index.php?topic=1326803.0
BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,
ETH: 0x72122edabcae9d3f57eab0729305a425f6fef6d0
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March 19, 2018, 10:50:04 AM
 #3580

Can you take a look at the Argon2d algo and add it?
There seem to be 2 variants, for 2 coins (wonder whats the difference between the algos, but the hashrate is about 3 times faster on Credits coin than on Dynamic)

https://github.com/BeastPool/cpuminer-argon2d


It looks like the same algo but with different parameters. It should be a straightforward implementation
because it was forked from cpuminer-opt. But I'll probably rework it to reduce code duplication/triplication.
It would be great because this fork didn't support AVX2, only AVX and AVX512f.
Waiting for adding Argon2d algo's too!
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