[XPM] [ANN] Primecoin High Performance | HP14 released!

[Entz]

It may still be required on something like Digital ocean (it needed it early on) but I have no more miners on there at the moment to try.

[DUMmy97531]

Hi

This is for mikaelh or anybody that can provide a decent answer..

I am trying to understand the current mining algorithm used in the miner, but, since I am a noob when it comes to C programming, I have a hard time understanding it.

mikaelh  ... did you use your own algorithm and, if so, can you please describe it or is there an article on the web available? I have searched for algorithms but found none yet that corresponds to yours. I am trying to learn C programming and thought "what the heck, might as well start here since I am interested in XPM's  <--- There .... changed it.

Any help would be highly appreciated........

[Tamis]

I am trying to learn C programming and thought "what the heck, might as well start here since I am interested in XRP's.

you are joking right !?

google : "c programming tutorials" and save your time :)

and what is xrp ?

[Dsfyu]

Yes, I am an idiot

Nope, you are just lazy: functionally it's less of a problem than idiocy, but ethically it's worse

Just kidding, I think it's just hard to follow every thread (especially when your watchlist contains 50+ topics)

Yeah, it's really hard to follow a thread like this especially when dealing with outside issues like work/school/etc.

I feel like I'm going to be lazy asking this question since it probably has been answered somewhere in the thread, but I have two similar computers mining. Both have Phenom II processors and one is running windows 7 and the other is running ubuntu 13.04. Both computers are running hp9. The one running it in windows is getting 0.7 cpd and the Ubuntu one is getting 0.5 cpd despite the fact that they have phenom IIs with the same number of cores and the same clock speed. Could this be caused by the fact that one of these is a quad core chip (the 0.7 cpd cpu) and one is one of the 6 core ones with two cores locked (the 0.5 cpd chip)? I'm just trying to figure out what I should be doing to get the one with lower performance to match the other one.

Which chips are they?  It could be their cache sizes.

The one getting 0.5 cpd is a Phenom II x4 960T (the six core with two cores locked) and the 0.7 cpd one is a Phenom II x3 740 that was unlocked to x4. They have the same cache sizes and operating frequencies but are slightly different chip designs (x4 vs x6).

[DUMmy97531]

I am trying to learn C programming and thought "what the heck, might as well start here since I am interested in XRP's.

you are joking right !?

google : "c programming tutorials" and save your time

and what is xrp ?

If you can not say anything usefull,,, please shutup

[paulthetafy]

Hi

This is for mikaelh or anybody that can provide a decent answer..

I am trying to understand the current mining algorithm used in the miner, but, since I am a noob when it comes to C programming, I have a hard time understanding it.

mikaelh  ... did you use your own algorithm and, if so, can you please describe it or is there an article on the web available? I have searched for algorithms but found none yet that corresponds to yours. I am trying to learn C programming and thought "what the heck, might as well start here since I am interested in XRP's.

Any help would be highly appreciated........

Hi Dummy, learning c programming and being able to understand the extremely complex math behind the prime coin miner are two separate topics. I would class myself as an accomplished programmer (it's been my day job for 15 years) but I don't understand the xpm algorithm despite reading a lot about it. If your goal is to learn c, I would start with that by looking at some tutorials.

[Tamis]

DO "died" when they limited users to 5 droplets, they had the best prices if you were willing to manage 100+ servers

[Tamis]

regarding haveged I can confirmed it messed up my mining.
I'm chaining blocks as usual since I stopped the service.

You have been warned !

[bcp19]

I am trying to learn C programming and thought "what the heck, might as well start here since I am interested in XRP's.

you are joking right !?

google : "c programming tutorials" and save your time

and what is xrp ?

If you can not say anything usefull,,, please shutup

If you're going to talk about ripple (XRP) in a primecoinn thread(XPM), please shutup

[Micio]

Why my Visual Studio 12 show mw this error? I can't open the source code!

[Schleicher]

Why my Visual Studio 12 show mw this error? I can't open the source code!

I think you need VS 2012 Express for Windows Desktop

[mechs]

So when is hp10 coming out?

[Qantaqa]

regarding haveged I can confirmed it messed up my mining.
I'm chaining blocks as usual since I stopped the service.

You have been warned !

I tried service haveged stop, however when listing the status of all my services it just appears there with a plus in front of it still. How can I actually stop this?

[gigawatt]

regarding haveged I can confirmed it messed up my mining.
I'm chaining blocks as usual since I stopped the service.

You have been warned !

I tried service haveged stop, however when listing the status of all my services it just appears there with a plus in front of it still. How can I actually stop this?

Use the following to see if haveged is running:

Code:

ps aux | grep -v grep | grep haveged

If it is running, use the following to stop it:

Code:

service haveged stop

To remove from startup:

Code:

update-rc.d -f haveged remove

I'm still looking into if haveged affects performance.  At worst it should only leave performance unaffected, not make it worse.

[aney]

 It seems that 32-bit version of hp9 is still considerably slower than 64-bit version, at least on win7 x86 and x64 respectively. The difference is like 0.26cpd vs 0.38cpd on i3-540@3.6.
 mikaelh, are you going to do something about it? Would be great.

[Pt0x]

regarding haveged I can confirmed it messed up my mining.
I'm chaining blocks as usual since I stopped the service.

You have been warned !

Thanks!, I did uninstall It and began to solve some blocks!

[mikaelh]

It seems that 32-bit version of hp9 is still considerably slower than 64-bit version, at least on win7 x86 and x64 respectively. The difference is like 0.26cpd vs 0.38cpd on i3-540@3.6.
 mikaelh, are you going to do something about it? Would be great.

There's not much that can be done about it. I think it comes down to modular exponentiation being faster on x64.

Also as I have said before, haveged is probably not useful for mining. I don't see why the mining process would need entropy. It shouldn't really be detrimental either except for the fact that a few CPU cycles are being wasted.

[Qantaqa]

regarding haveged I can confirmed it messed up my mining.
I'm chaining blocks as usual since I stopped the service.

You have been warned !

I tried service haveged stop, however when listing the status of all my services it just appears there with a plus in front of it still. How can I actually stop this?

Use the following to see if haveged is running:

Code:

ps aux | grep -v grep | grep haveged

If it is running, use the following to stop it:

Code:

service haveged stop

To remove from startup:

Code:

update-rc.d -f haveged remove

I'm still looking into if haveged affects performance.  At worst it should only leave performance unaffected, not make it worse.

Thanks for the instructions, the service wasnt stopping but removing and reboot worked!

[Tamis]

I though too that haveged should not affect mining and did notice a small drop in pps while it was running.
The fact is that since I stopped the service I'm finding blocks as usual.

It's 10 am here and I've already found 11 blocks, yesterday while haveged was running no blocks for 6 straight hours.

If it's variance, then it's extreme variance !

For those having problems stopping the service just remove haveged : sudo apt-get remove haveged -y

[Lauda]

Why my Visual Studio 12 show mw this error? I can't open the source code!

Obviously not compatible. Download older versions of VS and try again.