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Author Topic: [ANN] Litecoin - a lite version of Bitcoin. Launched!  (Read 1190250 times)
pooler
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June 06, 2012, 02:32:40 PM
 #1721

Nothing is ASIC hostile. Nothing.
Go read again the definition of ASIC please  Smiley

It is my understanding that, in terms of cost-effectiveness, scrypt can be regarded as relatively ASIC-hostile.
Of course you could design a fast (relative to a desktop CPU/GPU) ASIC for scrypt, but because of the memory requirements of scrypt wouldn't it turn out to be way more expensive than a fast ASIC for, say, SHA-256?
No. There is no "ASIC hostile" things  Undecided It would be like saying "scrypt is computer hostile"...

I do not mean "hostile" as in "an ASIC would be inefficient". That would be just ridiculous, and I'm sure we both agree on that point.
What I mean is, instead, that the transition to ASIC mining would bring a smaller speedup than it would for Bitcoin.
Suppose that for Bitcoin you spend X to build an ASIC and you get a speed ratio of Y relative to CPU model Z.
What I mean by "hostile" is that to get the same speed ratio relative to the same CPU model you would have to spend significantly more than X.


Quote
Why it should be more expensive?

Because the memory requirements of SHA-256 are virtually zero, and memory (the type of memory used for caches in particular) is not free.

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June 07, 2012, 04:28:52 PM
 #1722

Coincidence?



I believe it is an intentionaly stimulated similarity Wink
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June 07, 2012, 09:47:18 PM
 #1723

Coincidence?



I believe it is an intentionaly stimulated similarity Wink

If you convert that do € or $ trough BTC fiat price, it will be even more interesting. LTC is running circles around BTC in volatility. Smiley

While reading what I wrote, use the most friendliest and relaxing voice in your head.
BTW, Things in BTC bubble universes are getting ugly....
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June 11, 2012, 12:35:31 AM
 #1724

Hi

My miners on my GPU are running well... I was wondering if someone could explain what the following are and what changes to speed, if any, they could make when changed:

1. GPU Thread Concurrency
2. Sharethreads
3. lookup gap

BTW Im using reaper v13

Thanks!

1. Litecoin 2. Bitcoin 3. Any of the Anon coins
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June 11, 2012, 01:40:44 AM
 #1725

Hi

My miners on my GPU are running well... I was wondering if someone could explain what the following are and what changes to speed, if any, they could make when changed:

1. GPU Thread Concurrency
2. Sharethreads
3. lookup gap

BTW Im using reaper v13

Thanks!

What hardware are you using?
Increasing lookup gap, decreases the VRAM usage. Decreasing lookup gap increases the VRAM usage.
GPU Thread Concurrency also affects the VRAM usage.
Sharethreads, what ever you set it to, does't seem to affect your mining performance.

Aggression set to 19, is the fastest aggression setting I can use. Anything higher/lower performs worse.
But if you only have a one GPU, I do not recommend using that high aggression, you PC will become very unresponsive/slow.

~R.H~

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June 11, 2012, 01:52:19 AM
 #1726

Coblee

Im using atm 1 x 5870 refference and 1x 5870 xfx with an overclocked i3

i have more systems i want to add all being quad 5870 xfx cards.

atm i use agg 17 with 128 file size and concurrency set to 6000 something and 5 threads per gpu.

with my two cards im averaging 700kh but wish to up this to nearer 800.

my refference card is currenty clock at 970mhz with 1175 mem clock, and my xfx  is 920 with 1200 mem clock.

i can push my xfx to 930 and mem of 1250 but i only get a couple of hours mining at a total of 800kh before is glitches out...

im thinking of switching to linux... any other ideas to tackle stability and increase kh?

Hi

My miners on my GPU are running well... I was wondering if someone could explain what the following are and what changes to speed, if any, they could make when changed:

1. GPU Thread Concurrency
2. Sharethreads
3. lookup gap

BTW Im using reaper v13

Thanks!

What hardware are you using?
Increasing lookup gap, decreases the VRAM usage. Decreasing lookup gap increases the VRAM usage.
GPU Thread Concurrency also affects the VRAM usage.
Sharethreads, what ever you set it to, does't seem to affect your mining performance.

Aggression set to 19, is the fastest aggression setting I can use. Anything higher/lower performs worse.
But if you only have a one GPU, I do not recommend using that high aggression, you PC will become very unresponsive/slow.

~R.H~



1. Litecoin 2. Bitcoin 3. Any of the Anon coins
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June 11, 2012, 07:01:27 AM
 #1727

Coblee

Im using atm 1 x 5870 refference and 1x 5870 xfx with an overclocked i3

i have more systems i want to add all being quad 5870 xfx cards.

atm i use agg 17 with 128 file size and concurrency set to 6000 something and 5 threads per gpu.

with my two cards im averaging 700kh but wish to up this to nearer 800.

my refference card is currenty clock at 970mhz with 1175 mem clock, and my xfx  is 920 with 1200 mem clock.

i can push my xfx to 930 and mem of 1250 but i only get a couple of hours mining at a total of 800kh before is glitches out...

im thinking of switching to linux... any other ideas to tackle stability and increase kh?

Hi

My miners on my GPU are running well... I was wondering if someone could explain what the following are and what changes to speed, if any, they could make when changed:

1. GPU Thread Concurrency
2. Sharethreads
3. lookup gap

BTW Im using reaper v13

Thanks!

What hardware are you using?
Increasing lookup gap, decreases the VRAM usage. Decreasing lookup gap increases the VRAM usage.
GPU Thread Concurrency also affects the VRAM usage.
Sharethreads, what ever you set it to, does't seem to affect your mining performance.

Aggression set to 19, is the fastest aggression setting I can use. Anything higher/lower performs worse.
But if you only have a one GPU, I do not recommend using that high aggression, you PC will become very unresponsive/slow.

~R.H~



I was using 5870's last month. Each card was getting +400KH/s
Increase the worksize to 256
Concurrency 6144
Aggression 19 (if you are not using that computer)
Please note that most 5870 are hard limited to 900Mhz, if you go pass that, you will lose performance.
DONT try pushing it above 900Mhz, test it, you can see yourself. My 5870's were set to 899Mhz Core and 1299Mhz Memory. (Memory hard limit is 1300Mhz)
That way you can hit 415-430KH/s
Makes not difference what CPU you are using, just don't mine with the CPU at the same time, if you think you have to then make sure its not under 100% load, use less threads. Otherwise it will bottleneck your GPU's. I have 3 cards running on AMD Ultra Low Voltage u270. And 3 cards on Intel i7 setups, both get same hash rates, CPU usage is 1-3%

~R.H~
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June 11, 2012, 12:23:36 PM
 #1728

Hi,

Thanks for that info. I was playing with the clocks, if i pushed to 970 on my refference i was getting faster speeds than 900 but havnt tried it with my xfx board. I also realised that my cards were glitching if they were pushed beyond 1225 mem clock...

Coblee

Im using atm 1 x 5870 refference and 1x 5870 xfx with an overclocked i3

i have more systems i want to add all being quad 5870 xfx cards.

atm i use agg 17 with 128 file size and concurrency set to 6000 something and 5 threads per gpu.

with my two cards im averaging 700kh but wish to up this to nearer 800.

my refference card is currenty clock at 970mhz with 1175 mem clock, and my xfx  is 920 with 1200 mem clock.

i can push my xfx to 930 and mem of 1250 but i only get a couple of hours mining at a total of 800kh before is glitches out...

im thinking of switching to linux... any other ideas to tackle stability and increase kh?

Hi

My miners on my GPU are running well... I was wondering if someone could explain what the following are and what changes to speed, if any, they could make when changed:

1. GPU Thread Concurrency
2. Sharethreads
3. lookup gap

BTW Im using reaper v13

Thanks!

What hardware are you using?
Increasing lookup gap, decreases the VRAM usage. Decreasing lookup gap increases the VRAM usage.
GPU Thread Concurrency also affects the VRAM usage.
Sharethreads, what ever you set it to, does't seem to affect your mining performance.

Aggression set to 19, is the fastest aggression setting I can use. Anything higher/lower performs worse.
But if you only have a one GPU, I do not recommend using that high aggression, you PC will become very unresponsive/slow.

~R.H~



I was using 5870's last month. Each card was getting +400KH/s
Increase the worksize to 256
Concurrency 6144
Aggression 19 (if you are not using that computer)
Please note that most 5870 are hard limited to 900Mhz, if you go pass that, you will lose performance.
DONT try pushing it above 900Mhz, test it, you can see yourself. My 5870's were set to 899Mhz Core and 1299Mhz Memory. (Memory hard limit is 1300Mhz)
That way you can hit 415-430KH/s
Makes not difference what CPU you are using, just don't mine with the CPU at the same time, if you think you have to then make sure its not under 100% load, use less threads. Otherwise it will bottleneck your GPU's. I have 3 cards running on AMD Ultra Low Voltage u270. And 3 cards on Intel i7 setups, both get same hash rates, CPU usage is 1-3%

~R.H~

1. Litecoin 2. Bitcoin 3. Any of the Anon coins
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June 11, 2012, 12:36:26 PM
 #1729

How many hashes is it pulling at 970Mhz?
899Mhz Core and 1250Mhz gets 415KH/s
The Koolio
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June 11, 2012, 06:56:24 PM
 #1730

Wicked man... Im now getting a steady 760kh with that tweak... cant quite get 400 per card, but think thats due to latency with other people using my net too


How many hashes is it pulling at 970Mhz?
899Mhz Core and 1250Mhz gets 415KH/s

1. Litecoin 2. Bitcoin 3. Any of the Anon coins
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June 12, 2012, 12:21:01 PM
 #1731

Can anyone provide an explanation for this query:

Since I lowered my clock speed to 899mhz and up'ed my mem clock to 1250 on my 5870's ive been getting a blazing speed of 375-400kh each, which was an improvement on the 325-350 i was getting on 970mhz and 1200 clock... however I seem to not be solving blocks at the rate I was doing previously. Obviously I understand the luck factor but previously I was solving around 10-15 blocks a day, but now Im lucky to even do a third of that.

any ideas?

also if I raised my mem clock to 1270-1299 my rigs will run for a few hours then glitch out (black screen), any ideas on how to combat this as Ive read that these cards can go up to 1300 clock anyway.

1. Litecoin 2. Bitcoin 3. Any of the Anon coins
The Koolio
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June 12, 2012, 12:23:41 PM
 #1732

Also, any ideas where I can view historical prices for Litecoin, say since its conception or over the last few months?

1. Litecoin 2. Bitcoin 3. Any of the Anon coins
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June 12, 2012, 02:09:59 PM
 #1733

You cant run any card very near to it max.
You getting black screen coz of over clocking.
You have no way but to keep the clock rates, which doesn't crash.
In your case, it is 1260 for memory.
I used this miner & got ~318 if i run with aggression 18 , 945/1200.
& also found out decreasing memory speed reduces hash rate & also temperature.
So it seems if increase memory, hash rates increases.

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June 13, 2012, 11:15:18 PM
 #1734

Koolio,

I said that very clearly. 900Mhz is the hard limit. You cannot change that. You can flash, bang, shoot, throw out the window and do voodoo, it wont help.
You get the best performance out of your cards when running as close to the hard limit as possible.
You cannot set your memory to 1299 cause its simply not overclocking very well. I took 10 new cards out of the boxes last month, I'd say 6-7 cards are running well at high mem. speeds.
There's always few bad apples...

Oh and finding less blocks... Bad luck I guess. I use to get 17 blocks at 500Kh/s.
Sometimes it only finds 3 blocks/day. Which makes me want to go from solo to pool mining. But then again, next morning it finds 11 blocks in 3 hours running solo.

~R.H~
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June 13, 2012, 11:28:05 PM
 #1735

You cant run any card very near to it max.
You getting black screen coz of over clocking.
You have no way but to keep the clock rates, which doesn't crash.
In your case, it is 1260 for memory.
I used this miner & got ~318 if i run with aggression 18 , 945/1200.
& also found out decreasing memory speed reduces hash rate & also temperature.
So it seems if increase memory, hash rates increases.

It depends what you are mining with.
69XX cards don't lose much performance when you downclock you memory.
Make sure your GPU clock is not higher than 899Mhz.
5XXX cards do lose performance when you downclock your memory, since the bandwidth is not as good as on 69XX cards.

~R.H~
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June 14, 2012, 12:06:48 AM
 #1736

Anyone having problems with Litecoin-qt connecting to a few (or no) peers but not downloading any more blocks after a litecoin-qt.exe process restart (closing the process and reopening the program)? If I delete the blockchain and blockindex file in AppData\Roaming\Litecoin then it redownloads the blockchain and works normally again. (Using Litecoin-qt 0.5.0.9 beta on Windows 7)

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June 14, 2012, 08:31:38 AM
 #1737

I'm considering buying some Video cards just to mine Litecoin.

I know people think my money is better spent just purchasing Litecoin, but I'm a supporter and I want to improve the network and also invest in it.

Is there any consensus about if I am purchasing a new gpu card to mine, what card offers the best performance to cost ratio?

cheers!

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June 14, 2012, 08:45:16 AM
 #1738

I'm considering buying some Video cards just to mine Litecoin.

I know people think my money is better spent just purchasing Litecoin, but I'm a supporter and I want to improve the network and also invest in it.

Is there any consensus about if I am purchasing a new gpu card to mine, what card offers the best performance to cost ratio?

cheers!

maybe you are looking for this list: https://github.com/coblee/litecoin/wiki/Mining-hardware-comparison

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June 14, 2012, 01:17:53 PM
 #1739

I'm considering buying some Video cards just to mine Litecoin.

I know people think my money is better spent just purchasing Litecoin, but I'm a supporter and I want to improve the network and also invest in it.

Is there any consensus about if I am purchasing a new gpu card to mine, what card offers the best performance to cost ratio?

cheers!

maybe you are looking for this list: https://github.com/coblee/litecoin/wiki/Mining-hardware-comparison

Yes, although I was hoping maybe to find some people who have cards other then those listed. For example the place I buy in the Czech Republic carries cards starting with the 6450 models, and some are really affordable. So I was curious   about the following numbers, if anyone personally has experience with them.

Radeon HD6450
Radeon HD6570
Radeon HD6670
Radeon HD6750
Radeon HD6770

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June 14, 2012, 02:48:08 PM
 #1740

Crazy rabbit,

Really it depends on the amount you want to spend as well as what you are doing with the hardware afterwards. It is good that you are mining to help increase the popularity! The 6xxx series is obviously going to give the best KH overall, but depending on what you can get these for (new or used) and how much hashing power you get per $ + power usage your decision may be swayed. I personally love the 5xxx namely the 5870 cards as Ive used these for a year and I love them and wouldnt change them, resale value is fairly good too. I went to overclockers.com and brought 20 at a discounted price of £115.00 which was £35.00 cheaper than retail when I brought them as I had loads.

The other factors include supplementary hardware. By this I mean having motherboards with multiple pci-e slots, I had to spend over £130 last year on corsair IV extreme boards, I run these with amd processors (namely athlon dual core with core unlock enabled on the boards) as these were some of the cheapest quad enabled boards I could get at the time. Also you will need adequate ram and processor speed to make sure you dont bottleneck and that your cards get work diverted quickly and hassle free. I also had to buy PCI'e extenders from cablesaurus so I could achieve lower temps by hanging my cards. I recommend linux over windows as this saves you on harddrive and also I believe you get a couple extra hash when running without a gui on command line. You will have to get a recompiled version of reaper in order to gpu mine on linux, but thats available via other people who have made changes to it.

The other thing is that theres always more to learn in this game. Ive been doing this for over a year with bitcoin, namecoin and litecoin, and everytime I start mining something new, hardware runs differently with different mining currencies and also tweaks are always about. Just from these two last pages on this forum topic I have upped my speeds from just under 300kh per 5870 to more like 400 kh now (stable). I could get over this but cards always topped out after a few hours Sad

Invest in multiple 120mm fans and a larger oscillating fan in order to create a lower ambient temp.

Cheesy



I'm considering buying some Video cards just to mine Litecoin.

I know people think my money is better spent just purchasing Litecoin, but I'm a supporter and I want to improve the network and also invest in it.

Is there any consensus about if I am purchasing a new gpu card to mine, what card offers the best performance to cost ratio?

cheers!

maybe you are looking for this list: https://github.com/coblee/litecoin/wiki/Mining-hardware-comparison

Yes, although I was hoping maybe to find some people who have cards other then those listed. For example the place I buy in the Czech Republic carries cards starting with the 6450 models, and some are really affordable. So I was curious   about the following numbers, if anyone personally has experience with them.

Radeon HD6450
Radeon HD6570
Radeon HD6670
Radeon HD6750
Radeon HD6770

1. Litecoin 2. Bitcoin 3. Any of the Anon coins
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