ATTN Litecoin GPU Miners - Scrypt support for cgminer

[QiVX]

This thread seems interesting.
Going to sub to this.
Because I need a place to put all my GPUs after ASIC.

[foggyb]

Thanks. Alas I cannot seem to get anywhere near these values with my 7970s. I remain very very sceptical. I can easily push the values up to those hashrates, but the amount of useful shares drops to 10%.

[-ck]

have you tried just using reaper with those setting? and not just its kernel, although it shouldn't make a difference.

Same results.

[The Koolio]

Im interested in this... with my 5870 cards will i expect any speed jump over reaper?

[-ck]

Thanks. Alas I cannot seem to get anywhere near these values with my 7970s. I remain very very sceptical. I can easily push the values up to those hashrates, but the amount of useful shares drops to 10%.

I'm going to ask for my bounty back if CGminer doesn't beat this score:

What were your settings?

[abbeytim]

not all of us have 7000 series cards so plz test with 5000 and 6000 series cards also can this be released for us to test and can you make it for windows

were not all linux buffs

[foggyb]

What were your settings?

litecoin.conf:

Code:

worksize 256 
aggression 13 
threads_per_gpu 5 
cpu_mining_threads 0 
sharethreads 18 
lookup_gap 2 
gpu_thread_concurrency 10240

reaper.conf:

Code:

kernel reaper.cl
save_binaries yes
enable_graceful_shutdown yes
long_polling yes

platform 1
device 0

mine litecoin

[-ck]

not all of us have 7000 series cards so plz test with 5000 and 6000 series cards also can this be released for us to test and can you make it for windows

were not all linux buffs

Hang on a sec while I pull all that hardware out of my arse....

Oh wait, I don't have any of those in there.

[-ck]

I'm going to ask for my bounty back

Considering the bounty only just got reached and I was generous enough to even start working on it before it was reached, some patience would be appreciated since I never guaranteed it would be available yesterday. If not, you can have you money back, as can everyone else.

[The Koolio]

I have 13 5870 cards, is there a possibility of getting a copy of cgminer for litecoin to test on my rigs?

[tacotime]

Are you running the cards all on the same rig?  LTC mining is GPU memory bandwidth intensive, if all 4 cards are running at only 1x or 4x or even 8x you'll probably be bottlenecked.

Try using only one GPU in running at 16x.

[abbeytim]

yah koolio i agree 7900 cards arent the only ones out there

[-ck]

Are you running the cards all on the same rig?  LTC mining is GPU memory bandwidth intensive, if all 4 cards are running at only 1x or 4x or even 8x you'll probably be bottlenecked.

Try using only one GPU in running at 16x.

Indeed it was using quite a bit of memory... investigating further.

[bitlane]

Perhaps CGMiner reports different than what is expected at the pool ? ...in terms of shares submitted ?

Obviously my hash rates seem OK, but my share count in Reaper is NO where near what CGMiner is able to produce.

As a reference, I am using the same Reaper settings as stated above.
I have a 5 card 7970 rig running with a 1800 Shares + 24 Stales in 1520 seconds of runtime...2.6 MH/s

Con, what does the POOL REPORT you as submitting ? (kh/s ?)

[-ck]

Perhaps CGMiner reports different than what is expected at the pool ? ...in terms of shares submitted ?

Obviously my hash rates seem OK, but my share count in Reaper is NO where near what CGMiner is able to produce.

As a reference, I am using the same Reaper settings as stated above.
I have a 5 card 7970 rig running with a 1800 Shares + 24 Stales in 1520 seconds of runtime...2.6 MH/s

Con, what does the POOL REPORT you as submitting ? (kh/s ?)

1800 shares in 1520 seconds of runtime is a utility of 71 shares per minute TOTAL. However, you don't specify where you're mining as the difficulty target will affect that.

[foggyb]

Are you running the cards all on the same rig?  LTC mining is GPU memory bandwidth intensive, if all 4 cards are running at only 1x or 4x or even 8x you'll probably be bottlenecked.

Try using only one GPU in running at 16x.

In my experience, that isn't a factor. My memory is at default, and I'm cross-fired with 8x PCI-E bandwidth.

Considering the bounty only just got reached and I was generous enough to even start working on it before it was reached, some patience would be appreciated since I never guaranteed it would be available yesterday. If not, you can have you money back, as can everyone else.

Sorry if that came across as confrontational or impatient. I just wanted to point out that reaper is ahead of the game.

[bitlane]

Perhaps CGMiner reports different than what is expected at the pool ? ...in terms of shares submitted ?

Obviously my hash rates seem OK, but my share count in Reaper is NO where near what CGMiner is able to produce.

As a reference, I am using the same Reaper settings as stated above.
I have a 5 card 7970 rig running with a 1800 Shares + 24 Stales in 1520 seconds of runtime...2.6 MH/s

Con, what does the POOL REPORT you as submitting ? (kh/s ?)

1800 shares in 1520 seconds of runtime is a utility of 71 shares per minute TOTAL. However, you don't specify where you're mining as the difficulty target will affect that.

That's exactly what I meant.... your utility rate blew me away.

I am currently mining @ litecoincash.com

[-ck]

Perhaps CGMiner reports different than what is expected at the pool ? ...in terms of shares submitted ?

Obviously my hash rates seem OK, but my share count in Reaper is NO where near what CGMiner is able to produce.

As a reference, I am using the same Reaper settings as stated above.
I have a 5 card 7970 rig running with a 1800 Shares + 24 Stales in 1520 seconds of runtime...2.6 MH/s

Con, what does the POOL REPORT you as submitting ? (kh/s ?)

1800 shares in 1520 seconds of runtime is a utility of 71 shares per minute TOTAL. However, you don't specify where you're mining as the difficulty target will affect that.

That's exactly what I meant.... your utility rate blew me away.

I am currently mining @ litecoincash.com

The pool reported almost exactly the same hashrate I was getting locally at 1500 khash.

[bitlane]

Here is info from the Litecoincash pool thread...

Speeds are now back to something more usual staying a bit higher as we setup 21 target

Test period is over and pool running smotly now, with a BIG luck for now

[-ck]

Here is info from the Litecoincash pool thread...

Speeds are now back to something more usual staying a bit higher as we setup 21 target

Test period is over and pool running smotly now, with a BIG luck for now

So 21 * 71 = 1491 shares per minute. 1491 divided by 5 cards is 298 utility. That's almost exactly what I'm getting.