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Showing 20 of 59 results by DigitalCruncher
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Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 26/07/2018, 11:35:04 UTC
Is anyone here mining Denarius DNR with any FPGAs? If so how many do you have? How much DNR are you getting per card per day on average in the last 24 hours? Is anyone finding it hard to mine?

Im thinking about getting a few myself and want to know results.

Cheers

Wook

1.95 GH/s Tribus will generate about 35 DNR/day, which is equal to 0.0018/day at current prices.

This calculator produces valid estimation:
https://whattomine.com/coins/187-dnr-tribus?utf8=%E2%9C%93&hr=1950.0&p=250&fee=0.0&cost=0.1&hcost=0.0&commit=Calculate
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 23/05/2018, 11:00:44 UTC
i got the public keccak source and synthesized,not sure whether it can run properly,just evaluation of resources.

i put 24 core and set to 300MHz
so XUVU9P may run  7.2G ,160W power
how can you get 17G?


No, it is not enough.

I can make a 24 cores and 550 MHz with 0 WNS slack, probably 600 MHz. But it is less than 17G anyway. My ego is hurting.

he says two board can get 600Mh/s for x16R.
It also not make sense.

Every FPGA developer has his own kung fu, and the hashrate is the only meaningful measure of truth.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 16/05/2018, 19:27:14 UTC

I work with Avnet all the time, sadly this is normal. Hardware the backside  doesn’t move at consumer pace, very slowly. Also lead times are a few weeks now.

Good to know this is just their standard operating procedure and I am not the only one stuck in limbo.  And yeah, I expected a long lead time after I ordered the hardware.  I just was not expecting 2+ weeks of lead time to first place the order.  

Perhaps now someone else is mining by using these boards.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 11/05/2018, 20:46:10 UTC
They have already developed it long time ago but the biggest problem thay are facing is how monetize it. I read somewhere that with FPGA it will be really easy to bypass claymore style fee. It is really easy to copy the design, something like that.

It is easy to copy only the unprotected design. The protected one will not work even after copying of everything.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 11/05/2018, 20:31:51 UTC
The way I read this thread is that there are some credible devs looking for a business model that makes their work sustainable and profitable, more profitable than simply mining with their own secret sauce on their own expensive hardware.

There is the 'mining with dev fee' model and the hardware provider model. Both models require popular acceptance and adoption of fpga mining to work. Early adopters take a lot of risk because of the high cost of getting started with fpga mining equipment and missing proof of acceptable ROI.

pollo e huevos ?

It'd be sweet if we had a coin whose proof of work algorithm was fpga and gpu friendly but asic resistant !


I have a model of the dev fee. It is prepaid, nodelocked, timelimited and unavoidable, it works as online or offline activation key.
Although I am skeptical about the wide distribution of this solution without a sufficiently large number of algorithms for all of you.

The "Asic resistant" algorithm probably should involve
-  the Terabyte disk as a primary storage of some "DAG" file,,
-  the PCI Express NVM drive as a secondary storage of some "DAG" file (like cache),
-  the full bandwith of PCI Express x8/x16 slot,
-  the PCI Express GPU or FPGA.

This setup may be also usable to perform some real life tasks.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 07/05/2018, 20:03:10 UTC
Any comments on the quality/portability of the athena code ?


Athena code seem to be good. Although it's interface is very narrow so you will lose a hashrate by using it.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 07/05/2018, 04:19:45 UTC

Regarding the question about bitstream compatibility, the answer is no, a bitstream built for VCU1525 will not work on the XUPP3R.  The clock & USB UART are on different pins, so I must 'build' two versions of the bitstream, one for each card.  Although the change in the code is tiny, it still takes the tools 5+ hours to re-run place & route, with multiple runs needed to get a success.


Can you inplement a double set of interfaces to support both boards by the single firmware?
BUFGMUX_CTRL can be used to select the clock signal, if clocking assignment is different.
It is probably possible to build one firmware for both board.

I get the general idea but I still have a hard time seeing how to do that with the USB-UART pins.

As far as 'resale' of these FPGA cards, there is also a tremendous future for AI mining.  In fact, if tens of thousands of people were mining crypto with these boards, and an AI mining server became available, they are so powerful that you might end up with a 'Skynet' type superintelligence, or the Kurzweil 'singularity' event. 

My point is that if, for some reason, mining crypto became unprofitable, someone could re-sale access to the FPGA hardware for AI, weather prediction or any other compute-heavy tasks.



Suppose you have 2 different sets of pins.
RXD_BITTWARE and TXD_BITTWARE is one set,  RXD_XILINX and TXD_XILINX is another set.
The uart module inside FPGA has RXD input and TXD output also.
Then make connections as follows:
TXD_BITTWARE = TXD
TXD_XILINX  = TXD

RXD = RXD_BITTWARE  &  RXD_XILINX
The merging function varies between "or, xor, and" and  it is depending on internal or external pulling unconnected pins up or down.


Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 07/05/2018, 03:41:24 UTC

Regarding the question about bitstream compatibility, the answer is no, a bitstream built for VCU1525 will not work on the XUPP3R.  The clock & USB UART are on different pins, so I must 'build' two versions of the bitstream, one for each card.  Although the change in the code is tiny, it still takes the tools 5+ hours to re-run place & route, with multiple runs needed to get a success.


Can you inplement a double set of interfaces to support both boards by the single firmware?
BUFGMUX_CTRL can be used to select the clock signal, if clocking assignment is different.
It is probably possible to build one firmware for both board.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 06/05/2018, 15:11:59 UTC
From my practice there are simple measures to avoid failures.
Do not place these boards in the closed case, setup the fan to cool the bottom layer of PCB.
Do not allow the local overheat of any component like DC/DC or external power connector.
Turn on the overtemperature shutdown in the bitstream, and control the temperature in the mining software. It is easy.
Then the FPGA board will work for years.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 06/05/2018, 07:51:16 UTC
This thread is clearly for geniuses and I am not one, so I wish you guys the best of luck.

This is not about being genius. Terms of purchase of fpga and efforts to implement the project give different results to different people. That is all.

Regarding x16, x17 and xevan. I would suggest to use arrays of folded cores. Those folded cores are fast and small. It could be possible to make arrays of cores for all SHA3 candidates; balance those arrays to mantain the same hashrate; make a mux  in the front of cores.
Probably the monstrous setup with gigabit transceivers is not needed.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 06/05/2018, 07:33:49 UTC

Yes, not as trivial, but still is  possible to try.
I have test implementation in Vivado, 2 cores * 350 MH/s  = 700 MH/s in K7 325t.
Is it a good hashrate?

Yes, but not for a $1K board, GTX 1060 has a similar hash rate.

Did you get your design to PAR without errors? If so, how long did it take?

You can buy many 325t for 1k USD.
My design is built without PAR errors. It is counterproductive to have timing errors, since good shares an blocks could be lost.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 06/05/2018, 07:12:45 UTC

If you have a Zetex 1.15y with four Spartan LX150, a tiny modification to the code will change it from SHA-256 to SHA-224 and it is quite profitable mining Bismuth.


This is not true, apparently you haven’t spent that much time looking at the code

Why not. Basically I have made a miner for Bismuth, but stopped for a while because of lack of time, of good pools and ccminer's support.

In my opinion the biggest problem could be the finalizing of solution by searching "needle" in the "haystack", as it is called in the source code. But it may be solved.

The expected keccak hashrate of single LX150 is 250...500 MH/s depending on luck and efforts.

I found this after digging around:
http://www.mic-journal.no/PDF/2017/MIC-2017-4-1.pdf

It is not a trivial modification, is it? Also what is your hash rate and how did you calculate it?

Yes, not as trivial, but still is  possible to try.
I have test implementation in Vivado, 2 cores * 350 MH/s  = 700 MH/s in K7 325t.
Is it a good hashrate?
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 06/05/2018, 06:50:32 UTC

If you have a Zetex 1.15y with four Spartan LX150, a tiny modification to the code will change it from SHA-256 to SHA-224 and it is quite profitable mining Bismuth.


This is not true, apparently you haven’t spent that much time looking at the code

Why not. Basically I have made a miner for Bismuth, but stopped for a while because of lack of time, of good pools and ccminer's support.

In my opinion the biggest problem could be the finalizing of solution by searching "needle" in the "haystack", as it is called in the source code. But it may be solved.



The expected keccak hashrate of single LX150 is 250...500 MH/s depending on luck and efforts.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 06/05/2018, 06:06:51 UTC

Which is the primary usage of Amazon AWS FPGA nodes? I mean, in the real life? I have and idea to find such application and build a FPGA-based blockchain around it.

Could it be bioinformatics?


https://aws.amazon.com/ec2/instance-types/f1/
  • Genomics Research
  • Financial Analytics
  • Real Time Video Processing
  • Big Data Search and Analytics
  • Security

Well, I know that. It is marketing information, but I need some more details.
Speaking about genomic research for example - which algorithm and what parameters of solver?
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 06/05/2018, 03:29:10 UTC
Regarding AWS - once the cat is out of the bag it won’t be profitable.

Ya, i'm hoping that happens sooner rather than later. Let's get it out there and burn that bridge. You don't really want anyone to follow in your footsteps. Competition is bad to our bottom line -- Let them fight over the pennies and scraps like they do with the GPU markets. :p



Which is the primary usage of Amazon AWS FPGA nodes? I mean, in the real life? I have and idea to find such application and build a FPGA-based blockchain around it.

Could it be bioinformatics?

Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 04/05/2018, 15:35:07 UTC


No, it is u that dont get it. U ARE COMPETING with asics because asics will push difficulty to the coins u are mining. Profit margins for mining are thin these days. It is abit higher right now compared to 1-2 months ago due to recent price spike but that will correct soon as more hashrate enters market. U can always have an alt coin to mine but it is gonna make low or negative returns for u because of difficulty increase, which are pushed by asics from other coins.


U know wat. U just wait a few months. The antminer Z9 mini will push gpu miners out of zec and bitcoingold,etc. Those 2 are billion dollar coins. Lets see where those zec/btcgold gpu miners point their GPUs to. All other coins difficulty will go up. And the day a stronger ETH miner appears or the E3 gets sold cheaper, u will see a 78 billion gpu coin aka ETH get heavily flooded by asics. That will be the day u rue not thinking ahead. Your fpga will still work then and have coins to mine, but with very low profit or possibly negative profit.
Not sure wat your numbers will be but I dont believe u will be able to get any numbers on the fpga that make sense.

Anyways, do write your fpga experiment here perhaps Smiley

Asics do not push difficulty on the coins on which there are no asic. Asics drive away GPU on coin that can be mined by Asic.
Difficulty is pushed by the additional GPU leaving the Asic mined coin. As a result you are competing with GPU, not asics. You are just trying to do word play and circumvolated logic.
Eventualy, you could say that you are competing with Asic by proxy but not directly.

Still, on the coin you are mining, you are competing with GPUs.
With your FPGA, you are more profitable than GPUs.



This is a quote from someone else's message. I don't like it.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 04/05/2018, 13:16:05 UTC

Look, it doesnt make sense. It will cost too much more, have very little to mine and be at the whim of the antminer E3 pricing basically lol.

Most important question. WHY just WHY do u wanna make an FPGA when one asic already controls 64% of GPU mining? A few asics control most of the GPU mining already.

And this FPGA u are doing is just another GPU. Why? Because anyone can do it. U make a slightly stronger GPU known as FPGA. All u need is abit of dumb money going in there and u make no profits due to high difficulty.

In my opinion, interest to FPGA can be short-term, when you need to mine a certain number of coins before the release of ASIC. Like a Groestl, Nist5 and others.
But a more fundamental interest may be to offer a useful proof of work function  which can also be ASIC-resistant.
By setting new standards for the usefulness of the POW function, we will strengthen mining on FPGA in the long term.
In the end, someone uses mega-FPGA cards in real life. For what? Amazon AWS earns with them, why not do the same?
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 03/05/2018, 22:19:33 UTC
About X16R. Consider using an array of folded cores. All you need is 16 arrays of cores of each algorithm. Arrays should be balanced to have the same value of hashrate. The firmware is one.

https://cryptography.gmu.edu/athena/index.php?id=source_codes

the difficulty is just to have it optimized for some many algos... anyway at the end it will resort as always at proof of trust...

I don't get it. Can you explain in other words?
Those algorithms are already implemented and seems to be working. Even unoptimized firmware in proper moment of time can give much profit.
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 03/05/2018, 22:06:44 UTC
About X16R. Consider using an array of folded cores. All you need is 16 arrays of cores of each algorithm. Arrays should be balanced to have the same value of hashrate. The firmware is one.

https://cryptography.gmu.edu/athena/index.php?id=source_codes
Post
Topic
Board Mining (Altcoins)
Re: DIY FPGA Mining rig for any algorithm with fast ROI
by
DigitalCruncher
on 03/05/2018, 04:31:18 UTC

I doubt that FPGA performance/perwatt,same 28nm, FPGA can only get 5x lower power,14nm GPU is more efficient,so it can be 4x


The VU9P FPGA is a 16nm device, not 28nm.


Yes of course. I thought LTCMAXMYR compares 1080ti with 28 nm FPGA.