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Author Topic: [ANN] Litecoin - a lite version of Bitcoin. Launched!  (Read 783846 times)
ripper234
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Ron Gross


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October 11, 2011, 07:32:05 AM
 #81

Please vote in the poll: https://bitcointalk.org/index.php?topic=47418.0

Looks like the last 2 options are neck to neck. If you voted for the first or second option, you can change your vote if either 3rd or 4th options work better for you.

Any word on my post? Instructions on how to use the Tenebrix miner on Windows for mining LTC?

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October 11, 2011, 07:38:06 AM
 #82

Any word on my post? Instructions on how to use the Tenebrix miner on Windows for mining LTC?

Also, I've fixed the miner binary for Windows. Please download the new miner binary. Thanks!

Try the new miner binary. It should work. It's based off the latest Tenebrix miner. I'm not sure how much of ArtForz's optimizations went into that miner.

ripper234
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Ron Gross


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October 11, 2011, 07:47:45 AM
 #83

Any word on my post? Instructions on how to use the Tenebrix miner on Windows for mining LTC?

Also, I've fixed the miner binary for Windows. Please download the new miner binary. Thanks!

Try the new miner binary. It should work. It's based off the latest Tenebrix miner. I'm not sure how much of ArtForz's optimizations went into that miner.

Alright, wasn't sure if the earlier statement was a response to my post or not, I'll give it a try when I get the chance.

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ripper234
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Ron Gross


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October 11, 2011, 08:17:01 AM
 #84

Alright, wasn't sure if the earlier statement was a response to my post or not, I'll give it a try when I get the chance.

Miner works, mining on testnet at about 7.42 khash/sec on 7 out of 8 cores on my Intel Core i7-2600, 3.4 GHz.

Those speed be comparable to What speed are your getting CPU mining TENEBRIX, right?

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Ron Gross


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October 11, 2011, 08:19:17 AM
 #85

Miner works, mining on testnet at about 7.42 khash/sec on 7 out of 8 cores on my Intel Core i7-2600, 3.4 GHz.

Those speed be comparable to What speed are your getting CPU mining TENEBRIX, right?

About the speed - I just noted the hash rate of a single thread and multiplied by 7, assuming that each thread measures the speed independently.
Is this the case?

Quote
[2011-10-11 10:04:29] thread 6: 5080 hashes, 1.04 khash/sec
[2011-10-11 10:04:30] thread 0: 5123 hashes, 1.04 khash/sec
[2011-10-11 10:04:31] thread 4: 5162 hashes, 1.03 khash/sec
[2011-10-11 10:04:31] thread 1: 5140 hashes, 1.06 khash/sec
[2011-10-11 10:04:32] thread 5: 5080 hashes, 1.06 khash/sec
[2011-10-11 10:04:33] thread 3: 5265 hashes, 1.04 khash/sec
[2011-10-11 10:04:33] thread 2: 5265 hashes, 1.04 khash/sec
[2011-10-11 10:04:34] thread 6: 5080 hashes, 1.05 khash/sec

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October 11, 2011, 08:52:12 AM
 #86

!!! IMPORTANT UPDATE !!!

In order to prevent what's known as the Zeitgeist2 51% attack where the attacker gets to change the difficulty at will and generate a ton of blocks at a low difficulty, I've released a mandatory update to the code and the clients. Please check the first post and download the new client. Or if you are building from source, do a "git pull" and recompile.

Here's the actual fix:
    https://github.com/coblee/litecoin/commit/b1be77210970a6ceb3680412cc3d2f0dd4ca8fb9

Thanks to Lolcust and ArtForz for it.

If you do not update, your client will likely fork a new chain at the 2nd difficulty change (block 4032) due to a bad difficulty retarget. You don't want that! So please update your clients. And sorry again for this.

Also, I've fixed the miner binary for Windows. Please download the new miner binary. Thanks!

Please update the main post with this information or we'll certainly see many forking clients and angry miners!

If my post helped, I'll happily accept a few bitmills!   15rGg6A1JFZV3b7TTbtpAaiYGdUD1e1oAm
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October 11, 2011, 09:15:04 AM
 #87

!!! IMPORTANT UPDATE !!!

In order to prevent what's known as the Zeitgeist2 51% attack where the attacker gets to change the difficulty at will and generate a ton of blocks at a low difficulty, I've released a mandatory update to the code and the clients. Please check the first post and download the new client. Or if you are building from source, do a "git pull" and recompile.

Here's the actual fix:
    https://github.com/coblee/litecoin/commit/b1be77210970a6ceb3680412cc3d2f0dd4ca8fb9

Thanks to Lolcust and ArtForz for it.

If you do not update, your client will likely fork a new chain at the 2nd difficulty change (block 4032) due to a bad difficulty retarget. You don't want that! So please update your clients. And sorry again for this.

Also, I've fixed the miner binary for Windows. Please download the new miner binary. Thanks!

Please update the main post with this information or we'll certainly see many forking clients and angry miners!

Thanks for the tip.

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October 11, 2011, 09:27:56 AM
 #88

Thanks for the tip.
No problem. I know a lot of people don't read this far into the thread and it'll probably get buried in it eventually. (the bitHopper thread is a perfect example of this.. (200+ pages Cheesy))

If my post helped, I'll happily accept a few bitmills!   15rGg6A1JFZV3b7TTbtpAaiYGdUD1e1oAm
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October 11, 2011, 09:29:20 AM
 #89

Thanks for the tip.
No problem. I know a lot of people don't read this far into the thread and it'll probably get buried in it eventually. (the bitHopper thread is a perfect example of this.. (200+ pages Cheesy))

At first, I figured if you already read the thread, you probably subscribed to it, so you will get the message. If you just found the thread, you will just download the new code/binary anyways. But you're right, it's better to be safe.

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October 11, 2011, 09:32:45 AM
 #90

Yeah. I check the thread daily but I'm not subscribed to it Smiley better safe than sorry indeed.

If my post helped, I'll happily accept a few bitmills!   15rGg6A1JFZV3b7TTbtpAaiYGdUD1e1oAm
ripper234
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Ron Gross


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October 11, 2011, 09:38:29 AM
 #91

Thanks for the tip.

While you're at it, you might advise people to register for notifications on this thread using the notify button. If noobs find this thread, they won't have a clue they should subscribe.

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October 11, 2011, 10:43:57 AM
 #92

Miner works, mining on testnet at about 7.42 khash/sec on 7 out of 8 cores on my Intel Core i7-2600, 3.4 GHz.

Those speed be comparable to What speed are your getting CPU mining TENEBRIX, right?

About the speed - I just noted the hash rate of a single thread and multiplied by 7, assuming that each thread measures the speed independently.
Is this the case?

Quote
[2011-10-11 10:04:29] thread 6: 5080 hashes, 1.04 khash/sec
[2011-10-11 10:04:30] thread 0: 5123 hashes, 1.04 khash/sec
[2011-10-11 10:04:31] thread 4: 5162 hashes, 1.03 khash/sec
[2011-10-11 10:04:31] thread 1: 5140 hashes, 1.06 khash/sec
[2011-10-11 10:04:32] thread 5: 5080 hashes, 1.06 khash/sec
[2011-10-11 10:04:33] thread 3: 5265 hashes, 1.04 khash/sec
[2011-10-11 10:04:33] thread 2: 5265 hashes, 1.04 khash/sec
[2011-10-11 10:04:34] thread 6: 5080 hashes, 1.05 khash/sec
Hmm - seems low.

However, the only CPU I've mined more than one block of is Fairbrix.

All testing I've done I've used 3 threads (-t 3) out of 4 available on different versions of Linux
(and verified that it was only using 300% CPU out of 400% CPU)

Anyway, Fairbrix:
Intel i3 540 3.07GHz (xubuntu 11.04) I get avg 1.87 per thread
My desktop - old Intel Core2 Quad Q9300 2.50GHz (fc12) I get avg 1.55 per thread
(this computer Smiley)

I also time trialled it on a few other old CPUs (all 3 threads out of 4):
Intel Core i5 760 2.80GHz - avg 2.16 per thread
Intel Core2 Quad Q8200 2.33GHz - avg 1.39 per thread
Intel Core i3-2100 3.10GHz - avg 1.66 per thread
Intel Xeon E5335 2.00GHz - avg 1.53 per thread

Maybe your CPU only has 4? so you are actually getting double those figures? Not sure.

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ripper234
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Ron Gross


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October 11, 2011, 10:49:49 AM
 #93

Hmm - seems low.

...

Maybe your CPU only has 4? so you are actually getting double those figures? Not sure.

Yeah, I meant 8 "virtual cores" (whatever the term is - hyperthreading cores).
Overall I got 7.42 with 7/8 "cores", the theoretical output for 8 cores should be about 8.5.

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October 11, 2011, 11:39:22 AM
 #94

Well of my list, the highest is
Intel Core i5 760 2.80GHz - avg 2.16 per thread
which is 6.48MH/s using 3 out of 4
(which would imply a max of 8.64 using 4 - comparatively high for a slower CPU)

Pool: https://kano.is BTC: 1KanoiBupPiZfkwqB7rfLXAzPnoTshAVmb
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Help keep Bitcoin secure by mining on pools with Stratum, the best protocol to mine Bitcoins with ASIC hardware
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October 11, 2011, 03:34:39 PM
 #95

Starting the windows client without a litecoin.conf file and testnet=1 in it results into a nasty Visual C++ crash something about assertion.

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October 11, 2011, 03:49:13 PM
 #96

just to be clear, any coins mined from testnet are in a way worthless, yes?

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October 11, 2011, 03:49:59 PM
 #97

just to be clear, any coins mined from testnet are in a way worthless, yes?
Yes, they are only meant to get you setup and prepared for mainnet, or if you're developing an application and don't want to risk real Litecoins while testing.
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Ron Gross


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October 11, 2011, 03:50:15 PM
 #98

just to be clear, any coins mined from testnet are in a way worthless, yes?

Worth is demanded by market. Since there will not be a market for them, they will be practically worthless ... but keep them, no reason not to.

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October 11, 2011, 03:53:43 PM
 #99

just to be clear, any coins mined from testnet are in a way worthless, yes?
Yes, they are only meant to get you setup and prepared for mainnet, or if you're developing an application and don't want to risk real Litecoins while testing.

thanks guys

dominus mysteria
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October 11, 2011, 04:40:20 PM
 #100

Starting the windows client without a litecoin.conf file and testnet=1 in it results into a nasty Visual C++ crash something about assertion.

 Roll Eyes if you read the assertion it'd tell you that you need to put "testnet=1" into your litecoin.conf in the right directory!

If my post helped, I'll happily accept a few bitmills!   15rGg6A1JFZV3b7TTbtpAaiYGdUD1e1oAm
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