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Author Topic: [XPM] [ANN] Primecoin High Performance | HP14 released!  (Read 397536 times)
Tamis
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August 04, 2013, 10:32:33 PM
 #1541

Difficulty increase the past few days :

I have a graph of the past few days, difficulty. There is a link in this post. Unfornately I am not yet able to post attachments here yet.

https://bitcointalk.org/index.php?topic=251850.msg2866774#msg2866774


Edit : 5 servers down - Still made 20 blocks today and got an hour left. Keeping 30 servers for the night, I'll see if I terminate more in the morning.

You seem to have dedicated quite a bit of infra to this. :-)  Today, I decided to shut down a larger machine and wait and see if the difficulty drops. (No I don't think what I run has a impact on the difficulty.)

Very nice work Lyddite !

Bookmarked. It clearly shows the sudden rise I was talking about. I wonder what caused it, difficulty was lower nicely a few days ago then booom...
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August 04, 2013, 10:33:21 PM
 #1542

I think GPU miner is near alpha release... so keep tho coinz and don`t sell for the fishes!

HP9 is gr8 btw faund 2 blocks today with haswell i5

You think it is wise to keep them ?
I wonder what the price will be once the gpu miners are available...
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August 04, 2013, 10:42:40 PM
 #1543

I think GPU miner is near alpha release... so keep tho coinz and don`t sell for the fishes!

HP9 is gr8 btw faund 2 blocks today with haswell i5

You think it is wise to keep them ?
I wonder what the price will be once the gpu miners are available...

Now block is 11.5 prime coins, if GPU miners punch in and diff go up like 5-8x i think one block will be like only 3-4 coins... so they will have "speed" but reward will be small

Also GPU miners will make prime coin network more stable and keep it from 51% attack

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August 04, 2013, 10:46:19 PM
Last edit: August 04, 2013, 10:59:44 PM by Trillium
 #1544

The increase in network diff is not necessarily because of new miners and new hardware coming onto to the network.

It could simply be that the new code optimizations and defaults in HP9 are resulting in faster block generation and the network is adapting.

It's really easy to see those amongst you who have solo mined before and are used to having large variances in # of blocks found in any time period compared to those who have probably only ever used pool mining. I think the later have some unrealistic ideas about how block probabilities work and so get all prissy when they don't find a single block in a day.

Also be mindful of the scale of the primary Y axis in the linked graph, the full scale shown is only over the range 9.18 - 9.32, you can graph pretty much any data on a small enough range and make it look more/less meaningful than it really is.

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August 04, 2013, 10:55:59 PM
 #1545

Quote
Also GPU miners will make prime coin network more stable and keep it from 51% attack

I think 51% is unlikely, estimates show there are already equivalents of thousands of servers (pretty much all of DigitalOcean amiright?  Shocked) mining away. Then add all the miners using desktop CPU at home, laptops even, etc.

I think that not many (if any) persons would have the resources to pull off such an attack unless they devised an extremely efficient GPU miner that was privately released.

Any organizations looking to perform a 51% attack against primecoin would (at this time at least) need to devote huge server infrastructure to to the task. I don't think any college/universities high performance computing clusters would be up to the task (those are sometimes primarily run by 1-2 people and could lead to means of an attack). I don't think any company - even with their own datacenters - would have much interest in a primecoin attack even if they were capable, because those resources are far better used serving clients.

If you want to worry about 51% attack, I think primecoin is relatively safe. On the other hand some (all?) of the SHA-256 altcoins are in a bad place to be right now, eg. terracoin, but that was only possible because of ASIC.

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August 04, 2013, 11:13:07 PM
 #1546

CUDA is mentioned in the ypool miner's Git repo. I haven't looked at it it in much detail but a few days a go there was a link to a paper about porting GNUMP to CUDA.

- Lyddite -
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August 04, 2013, 11:45:02 PM
 #1547

Rising difficulty hasn't cut into my block output so far. I found 2 blocks today on my dual E5-2620 setup.
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August 05, 2013, 12:36:06 AM
 #1548

ypool might be able to 51%.

Maybe if a lot ppl quit solo or more ppl join pool, atm i see they don`t have more then ~17-20% of the network
Also as soon gpu miner come out with clean pool interface i think more pools gona open up

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August 05, 2013, 06:01:05 AM
 #1549

I'm running this miner on a few windows machines and each machine has it's own wallet.
Does anybody know of a solution to automatically send all rewards to one wallet?
I have seen a solution for linux but not for windows. Any help would be appreciated.

A fine is a tax you pay for something you did wrong.
A tax is a fine you pay for something you did right.
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August 05, 2013, 09:56:57 AM
 #1550

I'm running this miner on a few windows machines and each machine has it's own wallet.
Does anybody know of a solution to automatically send all rewards to one wallet?
I have seen a solution for linux but not for windows. Any help would be appreciated.

Do you have at least one linux at your disposal? If so, write a little script/program to query those systems, if they mine a block, dump the privkey and import on another central node.

That's how I do it, it also saves me some transfer fees Smiley
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August 05, 2013, 10:02:58 AM
 #1551

I'm running this miner on a few windows machines and each machine has it's own wallet.
Does anybody know of a solution to automatically send all rewards to one wallet?
I have seen a solution for linux but not for windows. Any help would be appreciated.

Do you have at least one linux at your disposal? If so, write a little script/program to query those systems, if they mine a block, dump the privkey and import on another central node.

That's how I do it, it also saves me some transfer fees Smiley
The easiest way to do this is to copy the wallet.dat from one machine to all of the others.  When one mines a block it will appear in the wallet on all machines.  I was initially using the dump/importprivkey until I realised I could clone the wallet.dat.  Just make sure the ones you are overwriting are empty before you copy the new wallet.dat over the top!
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August 05, 2013, 10:05:05 AM
 #1552

The easiest way to do this is to copy the wallet.dat from one machine to all of the others.  When one mines a block it will appear in the wallet on all machines.  I was initially using the dump/importprivkey until I realised I could clone the wallet.dat.  Just make sure the ones you are overwriting are empty before you copy the new wallet.dat over the top!
But this will only work for 100 blocks, then the wallets will "split". Unless you change the keypoolsize (search this thread Wink).

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August 05, 2013, 10:24:27 AM
 #1553

The easiest way to do this is to copy the wallet.dat from one machine to all of the others.  When one mines a block it will appear in the wallet on all machines.  I was initially using the dump/importprivkey until I realised I could clone the wallet.dat.  Just make sure the ones you are overwriting are empty before you copy the new wallet.dat over the top!
But this will only work for 100 blocks, then the wallets will "split". Unless you change the keypoolsize (search this thread Wink).
Until you've mined 100 blocks? Are you sure?  I have mined 187 blocks this way so far
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August 05, 2013, 10:28:21 AM
 #1554

I've read that a few times, e.g. https://en.bitcoin.it/wiki/Key_pool
Actually not sure, don't want to make you check the wallets of your 500 servers for nothing.  Tongue

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August 05, 2013, 10:33:58 AM
 #1555

I've read that a few times, e.g. https://en.bitcoin.it/wiki/Key_pool
Actually not sure, don't want to make you check the wallets of your 500 servers for nothing.  Tongue
Wow I'm really not understanding how this works Smiley
So I can check the wallets on each of my (not 500) machines, but what am I checking for?  How will they differ and what do I do about it?
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August 05, 2013, 10:59:06 AM
 #1556

getbalance and listtransactions, some of your machines might have blocks that are not in the one wallet you are checking, since they maybe are not synced since you mined your 100th block.  Cheesy

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August 05, 2013, 01:23:49 PM
 #1557

getbalance and listtransactions, some of your machines might have blocks that are not in the one wallet you are checking, since they maybe are not synced since you mined your 100th block.  Cheesy

It seems like diff is a bit skyrocketing, but I'm finding lots of blocks. I guess HP9 is da bomb? What about you guys, what are you results/findings?
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August 05, 2013, 01:34:23 PM
 #1558

getbalance and listtransactions, some of your machines might have blocks that are not in the one wallet you are checking, since they maybe are not synced since you mined your 100th block.  Cheesy

It seems like diff is a bit skyrocketing, but I'm finding lots of blocks. I guess HP9 is da bomb? What about you guys, what are you results/findings?

I found a few with HP9 myself in the past couple of days but none of that is statistically significant. The increase in mining difficulty does seem to indicate that I got the settings right with HP9. Smiley
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August 05, 2013, 01:34:31 PM
 #1559

getbalance and listtransactions, some of your machines might have blocks that are not in the one wallet you are checking, since they maybe are not synced since you mined your 100th block.  Cheesy

It seems like diff is a bit skyrocketing, but I'm finding lots of blocks. I guess HP9 is da bomb? What about you guys, what are you results/findings?
How many blocks are you getting vs PPS?  
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August 05, 2013, 01:43:54 PM
 #1560

getbalance and listtransactions, some of your machines might have blocks that are not in the one wallet you are checking, since they maybe are not synced since you mined your 100th block.  Cheesy

It seems like diff is a bit skyrocketing, but I'm finding lots of blocks. I guess HP9 is da bomb? What about you guys, what are you results/findings?
How many blocks are you getting vs PPS?  

RSP 70
SP 10
CPM 350 (+-)
PPS 72K

Finding average 1 block per hour since HP9
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