New YAM version release

[sandor111]

Getting over 14hpm on E3-1230v2, I'm impressed!

[Delinquency]

I am achieving higher speeds on my I5-2500K with some optimizations. From 5HPM to 8HPM. It starts up slow [6.8HPM] but makes its way higher.

I am now running the YAM configuration upon startup to grab as much RAM as possible from my system. This slows down applications and runs them from the HDD but it is very well worth it. (I am using four threads w/ 4096MB on a 6GB PC Setup)

I have overclocked my CPU from 3.3GHz to 4.2GHz by reapplying premium Thermal Paste and sanding the Thermal Surface of the CPU Cooler (It only has two copper pipes).

Using Process Lasso, I have decreased priorities of the running miner to run as an idle process.

[Delinquency]

Please research and develop AMD processor optimization.
AMD CPU's -FX 8000 series and 9000 series:

I grab 7.5-8.5HPM with 8GB+2GB RAM and 4.5GHz OC (FX8320) still leaves GPU mining more efficient by around 50%.

It still costs 50% more per HM to capitalize but is in line with power consumption vs. GPU's. [160W+/8.5HPM{MOBO+CPU+RAM} vs. 300W+/20HPM] and [$250ish/8.5HPM for CPU+RAM vs. $400-$430 GPU/20HPM]

There are some AMD specific technologies you may be able to play around with, and please focus on AMD series as well as Intel series for your miner optimizations.

[h0g0f0g0]

New version of YAM Live USB miner is uploaded here:

http://memorycoin.org/downloads/livecd/releases/yam-live-1.4-M7k.zip

It fixes the issue with auto detection of a memory size. Miner is now using the maximum possible CPU threads as well as the amount of memory.

[yvg1900]

Yes, normally SPM converges to HPM at the end. SPM reflects actual solution finding, while HPM is pure performance metric.

[bppsp1]

SPM/HPM should be roughly equal at the end.

If in doubt, the most important value is SPM from what I can gather since that is what is actually being send to the pool.

[yvg1900]

Yes, Cfg HPM is the right metric.

Looks like you measured everything OK.

Can you please provide more details on CPU (frequency, etc) memory (# of channels and mem module characteristics) and mobo (vendor and BIOS version)?

I will look if I have similar config in my test labs.

[sandor111]

Binding the process to each physical socket performs roughly the same as taskset

Did you measure exact HPM values? Does OS really support NUMA? What is output of

numactl --hardware

yvg1900

Yes it's enabled.

Code Select Expand

available: 2 nodes (0-1)
node 0 cpus: 0 1 2 3 4 5 12 13 14 15 16 17
node 0 size: 12278 MB
node 0 free: 123 MB
node 1 cpus: 6 7 8 9 10 11 18 19 20 21 22 23
node 1 size: 12288 MB
node 1 free: 990 MB
node distances:
node   0   1
  0:  10  20
  1:  20  10

Code Select Expand

MMC Agg. SPM: 12.304, HPM: 12.943; Rnds C/I: 9919/2596, Don. C/I: 109/22; Cfg/Wkr SPM: 12.304/0.5804, Cfg/Wkr HPM: 12.945/0.5884 10028 rnds AV=1, ART=101969

With numactl, roughly 6.45 hpm per socket, so 12.9 hpm total.
How do I measure the exact hpm, are the reported values accurate?

[volkantipi]

Hi, Xeon E5-2609 4 GB ram what is the best config?

[luckye]

I think that the New k version works better that the previous one because is more flexible...for a system like the mine with a lot of physical and virtual cores, the memory size is crucial.
I'm getting 2.4 hpm more !

[bppsp1]

I take back what I said earlier yvg1900

Figured out had random other issue causing issues with running yam instance.

Right now running av=1 and m=1024*threads resulting in 3-4% performance gain over previous version.

Thanks

[yvg1900]

Binding the process to each physical socket performs roughly the same as taskset

Did you measure exact HPM values? Does OS really support NUMA? What is output of

numactl --hardware

yvg1900

[h0g0f0g0]

Yam Live USB miner updated to M7k.

Download at http://memorycoin.org/downloads/livecd/releases/yam-live-1.3-M7k.zip

[yvg1900]

SPM is a metric (Solutions Per Minute) that depends very much on luck. Brute performance metric is HPM.

Fact that you see much smaller ART means that many threads share same worker memory area.

Can you post here output from the miner where it shows Threads/Workers and memory size in use?

yvg1900

[bppsp1]

I notice that the new version doesnt have a constant 99.9-100% peg on each thread, it fluctuates alot between 92-98 on each threads and rarely pegs at 99.9-100%

Is this by design, surely such fluctuations would kill extra hashrate ?

That would be the case if you use m=1024 and many threads. In this case mining will suffer from inter-thread sync contention.

Max perf can be obtained when m=1024*numberOfThreads, which is exactly the config from prev version.

Tried both, unfortunately the only thing better for me using version k is the much lower ART from 60000 down to 2000 , SPM/SPM suffered about 2-3% over long running session average.