[XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

[mustyoshi]

Found a CUDA implementation of the sieve here, too: http://www.mersenneforum.org/showthread.php?t=11900

Oh snap, things be going crazy.

Too bad the sieve is only half the problem.

If you can implement the primality tests, then we're talking.

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[tacotime]

Found a CUDA implementation of the sieve here, too: http://www.mersenneforum.org/showthread.php?t=11900

Oh snap, things be going crazy.

Too bad the sieve is only half the problem.

If you can implement the primality tests, then we're talking.

I'm not sure if this will be of help, but http://www.gpgpgpu.com/gecco2009/6.pdf

[reedlaw]

Seeing this:
https://i.imgur.com/occkCI0.png

Bugs me a bit. Can someone fix this?

I second this.  Change this ASAP.  This is something you will take a LOT of flak for, very quickly if you don't get on it.

Change lines 82 and 85 in /src/qt/forms/optionsdialog.ui and then recompile. 

...assuming you know how to recompile

Or better yet, issue a pull request.

[Tuck Fheman]

i7 ...

[Arcas]

i7 ...

Yeah i7 as well, I've gotten 3 in the last 24 hours. About 160 Primes per second

[ivanlabrie]

This coin is mind boggling...I'd be surprised if you guys come up with an optimized cuda miner that outperforms radeons (if they can even mine this thing at all further down the road)

[SaltySpitoon]

I've hit a few blocks so far, but when I use the getprimespersec command, it shows up as like 3-5 primes per sec. Pretty sure this is wrong, seeing as I'm using an 8350. That and that I've hit a fair number of blocks in the last few hours. Anyone else having issues like that?

[gudmunsn]

I've hit a few blocks so far, but when I use the getprimespersec command, it shows up as like 3-5 primes per sec. Pretty sure this is wrong, seeing as I'm using an 8350. That and that I've hit a fair number of blocks in the last few hours. Anyone else having issues like that?

That isn't happening for me, but I am also on an i7 3770.  What it does suggest is that getprimespersec really isn't related to how fast you're solving blocks. If you've hit a fair number of blocks in the last few hours with 3-5 primes per sec and my i7 hasn't hit a block in 4 hours with an average of 220 primes per sec, something is amiss, or you're just very lucky.

[Tuck Fheman]

The primespersec measure is for fun only, it does not necessarily reflect true mining performance. The only accurate measure is block rate, that is, given a fixed difficulty how fast can you generate blocks. To measure this one can use a lower difficulty than the network difficulty.

bump

[SaltySpitoon]

The primespersec measure is for fun only, it does not necessarily reflect true mining performance. The only accurate measure is block rate, that is, given a fixed difficulty how fast can you generate blocks. To measure this one can use a lower difficulty than the network difficulty.

bump

Yeah I just found that, thanks.

[Zalfrin]

HAs anyone successfully built on MS Visual Studio?

I gave up with VS 2010 and installed Xubuntu to do my recompiling

I just succeed to compile with mingw. I used this thread for instructions: https://bitcointalk.org/index.php?topic=149479.0

Thanks for pointing this out. For anyone wanting to compile on windows, here you go. Most complete guide you're going to find. I was having trouble getting boost installed previously. This thread got me pointed in the right direction. Stock (unmodified) primecoind is compiling happily now on Win7 x64.

[ivanlabrie]

HAs anyone successfully built on MS Visual Studio?

I gave up with VS 2010 and installed Xubuntu to do my recompiling

I just succeed to compile with mingw. I used this thread for instructions: https://bitcointalk.org/index.php?topic=149479.0

Thanks for pointing this out. For anyone wanting to compile on windows, here you go. Most complete guide you're going to find. I was having trouble getting boost installed previously. This thread got me pointed in the right direction. Stock (unmodified) primecoind is compiling happily now on Win7 x64.

Thanks man, I'm gonna have to learn some Visual Studio, and how to compile

[Zalfrin]

HAs anyone successfully built on MS Visual Studio?

I gave up with VS 2010 and installed Xubuntu to do my recompiling

I just succeed to compile with mingw. I used this thread for instructions: https://bitcointalk.org/index.php?topic=149479.0

Thanks for pointing this out. For anyone wanting to compile on windows, here you go. Most complete guide you're going to find. I was having trouble getting boost installed previously. This thread got me pointed in the right direction. Stock (unmodified) primecoind is compiling happily now on Win7 x64.

Thanks man, I'm gonna have to learn some Visual Studio, and how to compile

Good luck. Also note, at the end of the linked thread, some kind soul has put together a bunch of batch files that should get your build environment all set up. I'm giving it a try that way now after struggling through the manual installs and running into a few roadblocks along the way.

[8bitPunk]

Found a CUDA implementation of the sieve here, too: http://www.mersenneforum.org/showthread.php?t=11900

Oh snap, things be going crazy.

Too bad the sieve is only half the problem.

If you can implement the primality tests, then we're talking.

Why not use the existing primecoind primality tests?
This means the CPU is utilized for hashing the origin block and establishing the sieve for the GPU to execute with the results passed back to the CPU for the less intensive primality test. By using the same primality test you are also ensuring that the network nodes will confirm your block.

[mik3]

So does anyone know how many coins are going to be mined total? Is it in the tens of millions or hundreds?

[Loktera]

So does anyone know how many coins are going to be mined total? Is it in the tens of millions or hundreds?

Your answer is in the whitepaper; you should give it a read.

[mustyoshi]

Anytime I use more than one thread my pps goes down.

[ivanlabrie]

Interesting, yet pps are supposed to mena nothing...or not?

Sunny King you clever bastard, got us all like this: 

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[8bitPunk]

Block spacing is back under ~20 seconds... and difficulty is creeping towards 7.5...