[ANN][BURST] Burst | Efficient HDD Mining | New 1.2.3 Fork block 92000

[hawli]

Guys, I have a problem with mining. I'm running two mine.bat and the process java.exe is using all my RAM. I have 4GB of RAM. When I start the mining applications it uses about 3GB but after some time it uses all RAM and computer becomes SO SLOW that I literally cannot do anything, while CPU usage is about 10%.
I have 2x1TB of plots.
Any ideas? Do I just need more ram or is there a way to solve this?
I updated java but it's still same.

[Avaahnaa]

Also, by partitioning a drive, you are not doing yourself any favors. Sure the drive shows up as 2 drive letters... but it is still the same physical disk, so it will still be confined to the same max write speed as if it was un-partitioned.

Well, that's exactly what I meant when saying "we'll run into maximum disk write speed limit pretty quickly", since the maximum write speed is for the whole drive, so when writing to multiple partitions simultaneously, you'll be limited by 'max_write_speed/number_of_partitions' at best. The more partitions you write at once, the bigger penalty you'll have. If we assume the average max write speed of around 100-150 MB/sec, then it'll be 50-75 MB/sec at most when writing to 2 partitions simultaneously. I'm using 7970 cards right now, and getting 15-16 k per minute, that's what, 60-65 MB/sec.. It might actually make sense to divide each drive in 2 partitions and use 1 GPU per partition simultaneously. Would be 1.5-2x times faster to fill one drive with 2 partitions and 2 gpus, rather than to use 1 gpu for plotting on 1 big partition.

No idea how you came to this conclusion, assuming identical gpus it would take the same amount of time to write one partition as two as three as four etc. since the number of gpus = number of partitions.  Still assuming of course that 'you'll be limited by 'max_write_speed/number_of_partitions at best'

[twig123]

Also, by partitioning a drive, you are not doing yourself any favors. Sure the drive shows up as 2 drive letters... but it is still the same physical disk, so it will still be confined to the same max write speed as if it was un-partitioned.

Well, that's exactly what I meant when saying "we'll run into maximum disk write speed limit pretty quickly", since the maximum write speed is for the whole drive, so when writing to multiple partitions simultaneously, you'll be limited by 'max_write_speed/number_of_partitions' at best. The more partitions you write at once, the bigger penalty you'll have. If we assume the average max write speed of around 100-150 MB/sec, then it'll be 50-75 MB/sec at most when writing to 2 partitions simultaneously. I'm using 7970 cards right now, and getting 15-16 k per minute, that's what, 60-65 MB/sec.. It might actually make sense to divide each drive in 2 partitions and use 1 GPU per partition simultaneously. Would be 1.5-2x times faster to fill one drive with 2 partitions and 2 gpus, rather than to use 1 gpu for plotting on 1 big partition.

...partitioning the drive doesn't make it faster. No idea how you're coming to that conclusion.
Using 2 GPUs to plot to the same folder on a single partition is going to be the same speed as plotting with 2 GPUs to separate partitions on the same drive.

[Sglasio]

He дo кoнцa пoнял пpo пpoвepкy пepвыx бaйтoв пocлe гeнepaции плoтcoв нa пpoцeccope и видeoкapтe. Moжeт ктo нибyдь пoяcнить ?

coздaй фaйл c пoмoщью пpoцeccopa 48712486872462871628746 1 1 1000 5
A пoтoм coздaй фaйл c тaкими жe xapaктepиcтикaми c пoмoщью гpaфичecкoй кapты и cpaвни вec oбoиx фaйлoв в пaпкax нaзнaчeния.Ecли вec в бaйтax coвпaдaeт тo вcё в шoкoлaдe

вec мoжeт и coвпacть, cмoтpeть нaдo coдepжимoe. в кoммaнднoй cтpoкe нaбиpaeшь  fc /b имяфaйлaЦпy имяфaйлaГпy     и oн тeбe пoкaжeт oтличия внyтpи фaйлoв, ecли нeт oтличий - тo вce нopм. фaйлы дoлжны быть c oдинaкoвыми пapaмeтpaми, пoлoжи иx в paзныe пaпки.

G:\plots>FC /b cpu gpu
Cpaвнeниe фaйлoв CPU и GPU
FC: paзличия нe нaйдeны
this what i see...

[SpeedDemon13]

Messed around with the 2.0.1 plotter kernel a bit, and got it running a bit faster.

https://mega.co.nz/#!vsommLbQ!C9v0TshBm0JY8DMBC8DsM9wCtZvvGjsVDNl9wGr0DKU
Replace the kernel folder with the one provided.

This is about 35% slower on a Titan Black.

Giga 280x, parameters 0 8000 4000 128 4000
original: 11162,8 nonces/min
mod: 17777,8 nonces/min

That's about 59% increase in speed.....

[enta2k]

So much help from LivsUA, thank you dude, you are the best

now im creating my second file with gpu (7970) instead of cpu and i´m 3 times faster.
Actual plotting 9300nonces/min.
I think i could go a bit faster, but thats ok for now.

i go for jackpot version and try solomine with 6TB, if i dont find anything the next days, im gonna join a pool.
Just want to test my luck.

Maybe my chances getting struck by a lightning are better.

[pimytron]

Error: Failed to submit nonce, retrying...
Error: Failed to submit nonce

 

[chris190]

One question: but the 1024m is used to indicate the ram memory, right?
If you increase this value in multiples,  gain more? Since I have 128GB of ram.

java -Xmx1024m -cp pocminer.jar;lib/*;lib/akka/*;lib/jetty/* pocminer.POCMiner mine "http://burst-pool.cryptoport.io"


Which is the better of them?

http://burst-pool.cryptoport.io/

or

http://burst-pool2.cryptoport.io/

[AnonymousEconomist]

Aww, no one gave me + trust for overseeing the BURST multipool fund =(

[Amph]

7PB lol

[bipben]

One per plot. So, you'd have to start multiple plotters to use multiple GPUs

Thanks. So does this mean that basically the only way to use multiple GPUs in one rig efficiently (= simultaneously) is to build plots on multiple HDDs at the same time with 1 gpu per 1 HDD? Although I suppose it's possible to divide 1 HDD into several partitions and fill each partition of the same disk simultaneously, assigning 1 gpu per partition? If that is possible, then we'll run into maximum disk write speed limit pretty quickly, cause ordinary HDDs won't like it when huge chunks of data are written to different partitions at the same time..

The multi-GPU support is in the roadmap, be patient

[bitminer82]

How much memory do you have in your GPU?
The most I can gen @ is 3000 on a higher end card.

The lower end ones with 1GB constantly fail with the error posted above.

It's a 3GB R9 280x... 

Hi guys,

I am aware of this issue. The fact is that I have to create two full size buffers on the GPU side to reduce thread-local memory consumption. Thus the memory amount needed on the CPU side has to be doubled to get an estimate of what is needed on the GPU side.
As an example, for a stagger size of 4000 you will need 1GB RAM on CPU side and more than 2GB (exactly (PLOT_SIZE + 16) x stagger) on GPU side (doesn't include here the local buffers and the kernel code itself).
Once I have a stable version (really soon ), I will work on this particular problem.

Well, I've kind of figured out what the problem is... I have a 3GB XFX 280X (R9-280X-TDBD) but when I run the new gpuminer v2 and run "list devices" it shows my card with a max global memory of 2048 instead of 3072.  Maybe they forgot to put in a third of my vRAM?

Any idea why the discrepancy?  Not that it REALLY matters anymore... I'm almost done plotting, lol.

[SpeedDemon13]

modded v.2.0.1 kernel gave me the following results.

HD7970
Stock=11.7k nonces/min
Mod=20.6k nonces/min

HD7850 2GB
Stock=7.7k nonces/min
Mod=15.6k nonces/min

~76% increase with the 7970 and ~102.59 increase with the 7850 2GB......

[wacko]

Anyone had a problem like this?



Trying to mine at http://burst-pool2.cryptoport.io with pool miner V1, but only getting these messages..

modded v.2.0.1 kernel gave me the following results.

HD7970
Stock=11.7k nonces/min
Mod=20.6k nonces/min

What parameters do you use and what are your cards clocks? And what drivers? I've got only 16k with my Giga 7970 @ 975/1500, using 3072, 128 and 8160.

[SpeedDemon13]

Anyone had a problem like this?



Trying to mine at http://burst-pool2.cryptoport.io with pool miner V1, but only getting these messages..

modded v.2.0.1 kernel gave me the following results.

HD7970
Stock=11.7k nonces/min
Mod=20.6k nonces/min

What parameters do you use and what are your cards clocks? And what drivers? I've got only 16k with my Giga 7970 @ 975/1500, using 3072, 128 and 8160.

Actually it's doing 21.9k nonces/min now for the past 5 minutes, so 87% increase now. I'm running AMD 13.9 driver and 2.9.1 APP SDK at stock clocks, 1050/1375 on a MSI Twin Frozr III HD7970 BE.

Stagger=3072
Threads=128
Hashes=8160

Update: All gpu's only run a max of 64% about.

[sickfancy]

7PB lol

Good!  Maybe this will reduce the dumping.

[cad_cdn]

shoot me the link, I'll +1

Aww, no one gave me + trust for overseeing the BURST multipool fund =(

[smokim87]

7PB lol

Good!  Maybe this will reduce the dumping.

Still profitbale, gpu plotting faster and cheaper than cpu plotting...Expect diff to ride even more as more hop on with their gpus and plot.

Another coin in the process of getting ruined by gpus...


Guess will stop my servers glad I can cancel my rentals still.

Good luck guys.

[Natalya]

then he found a block

Can show where he find block ?

http://burst.cryptoport.io/acc/3871937959129835113

could be a delayed payment, i got 1k two days ago(two time, not in a row like him), maybe his delayed was just bigger

I   Got 2500k couple days ago with 10 tb

[paradigmflux]

Aww, no one gave me + trust for overseeing the BURST multipool fund =(

I did!