X11 is stupid, only algo that is asic proof is scrypt chacha with scheduled N factor changes on a rather frequent schedule. Frequent enough to put down asic development.

Yac is not scrypt-n + chacha. It's regular scrypt with chacha as the mixing function and a variable N factor, as opposed to regular scrypt with variable N factor like vertcoin which uses Salsa as the mixing function (which is the same as regular scrypt but with a higher N factor and not fixed).

Scrypt jane is not correct, ultracoin, cachecoin and the rest use the same algorithm as yacoin but different N factors that's all.

The term as coined by the original chacha coin (yacoin) is scrypt-chacha.

Primecoin has a gpu miner now, so it would be a good addition if it could be ported to myriad, not sure how long it'll take for the developers to open source the code though.
It would be "productive" to hash and find new prime chains, I think it would be a nice extra "feature" for myriad.

MEokvy1zb4BE4GrTZkMbrjrUa3r5bMNe2h

It's very good, but I'd like to see you integrate that new modded sgminer, maybe improve on the code and add all kernels?

ccminer wouldn't hurt but it's not 100% needed, at least not in other than its normal form.

I'll gladly donate some yac to the cause if you want them.

Well, Baritus' new diff retarget might help, but I'm not well versed into the technical aspects at play nor how to defend the coin against theoretical attacks like this if it uses the scrypt algo.

I didn't have one till recently :p
And my inet provider sucked till yesterday (got redundant isp's now, 6mb download...best I could get )

I'll flash a pendrive on Monday and try it on my main rig.
You have an API for cudaminer!?

https://bitcointalk.org/index.php?topic=413978.msg5970621#msg5970621

Cough, cough...16gh/s asic guys waving their e-peen.

I recall mentioning a fork with an algo change would be wise, DGC's network is only 1.98gh/s afaik.

Wow, Christian invasion! :p

Amazing work guys, seems like NVIDIA will be "the way it's meant to be mined" soon.

(It already is, imho, but software was lacking for a serious farm)

I had to buy WDC and send it to a different exchange to get some BTC 

UTC will be alive and kickin for a while I think, same with Yac...Miners will go mine scrypt n coins which are easier to tune and leave scrypt-chacha to more dedicated people. 

I'll try it. I have a few tasks and bat files to restart ccminer periodically but a few of the cards hash at 5mh/s after restarting it post crash.

Works but reverts all cards to stock clocks.

X64 isn't crashing for you folks?

I might revert to yacoin using cudaminer if I can't fix this. 

I can test this on my 280x and 290 equipped farm if you want.

Running linux atm, but can test on different hardware running windows too.

Just posted a conf file there, copy it and modify it as you see fit! :p

Pretty much the same card, or pretty similar at least.

Nope, that's groestl myriad.

I got my 6950 to 10mh/s on groestl...so yeah.

{
"pools" : [
   {
      "url" : "stratum+tcp://stablehash.com:4502",
      "user" : "ivanlabrie.1",
      "pass" : "x"
   }
],
"gpu-platform" : "1",
"intensity" : "16",
"kernel" : "myriadcoin-groestl",
"gpu-engine" : "0-850",
"gpu-fan" : "70-100",
"gpu-memclock" : "150",
"gpu-powertune" : "20",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-listen" : false,
"api-mcast-port" : "4028",
"api-port" : "4028",
"auto-fan" : true,
"auto-gpu" : true,
"expiry" : "120",
"failover-only" : true,
"gpu-threads" : "4",
"worksize" : "64",
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"failover-switch-delay" : "60",
"no-pool-disable" : true,
"kernel-path" : "/usr/local/bin"
}

What cards?

I can mine yac just fine on nvidia but using cudaminer, naturally.
Nvidia cards are quite decent at it. (except for fermi or older)

I want a share, but it depends on me having luck with a business opportunity next week. Wish me luck!

Some more reassuring info:

https://litecointalk.org/index.php?topic=17948.0

March 26th, 2014:

With the internet awash with poor data and panic about scrypt asics, I decided to put together a (hopefully) readable analysis about the current state of asics, with emphasis on the differences between SHA256/Bitcion asics, and SCRYPT asics. 

One of the most important things to consider is that scrypt asic's will not be as prolific as sha256 asics simply due to the memory constraints imposed by the scrypt algorithm.

Some technical facts to consider:
First true btc asics were built on a 65nm manufacturing process which at the time was about 7 years old.  Despite that they were ~40x more efficient than GPUs (~2MH/w on a GPU, vs ~80MH/w on a BFL single sc)
Current 20nm (the smallest/newest production process) sha256 asics (knc Neptune for example) are orders of magnitude better than that, around 2000MH/w, ~1000x more efficient than a GPU
Until manufacturing process goes smaller than 20nm, asic's can't advance as quickly as they have in the last 2 years while "catching up" to current process... ie: they jumped from 65nm to 20nm in less than 2 years, whereas now they can only expect to jump from 20nm to 14nm in ~2 years.  This is significant.
We can see that the first gridseed scrypt asic is about 12x more power efficient than the best GPU in terms of scrypt KH/w.  AMD R9 270 at ~ 3KH/w, gridseed 360kh scrypt asic ~36KH/w (55nm process).
We can see that the first KNC scrypt asic is about 26x more power efficient than the best GPU in terms of scrypt KH/w. AMD R9 270 at ~ 3KH/w, KNC titan ~85 KH/w (?? process).
This is already proof of scrypt algorithm doing what it was originally intended to do, which is to make scrypt asic development less prolific than that of sha256 asics - which I would say they have achieved, notably when considering that even the first generation 65nm btc asics were 4x more efficient than the current 55nm scrypt asics vs GPUs strictly in terms of power.  This is especially true when you consider the people building these scrypt asics (gridseed, knc) have already been building sha256/bitcoin asics for quite some time and are familiar with the process.

As with everything, the first person to get their asic, scrypt or otherwise, usually makes their money back pretty quickly.  With bitcoin, this was far more volatile than it will be with scrypt asics as the bitcoin asics that were built on a smaller process than their predecessor were 10x more efficient.

If you're basing your scrypt asic buying decision on the history of bitcoin asic's, don't.   This is because scrypt asics will not be as prolific as sha256 asics were... it is simply not possible to produce a scrypt asic that outperforms gpu's by the same amount that a sha256 asic outperforms them, among other things because of memory constraints inherent to scrypt algorithm (and limitations of sram cell size/current leakage on newer processes).

Scrypt asics on 22nm will not be 25x more efficient that scrypt asics on 55nm as we see that they are in sha256/bitcoin asics.  This is due to, as previously mentioned,  limitations of sram cell size and current leakage vs manufacturing process size and the cost of that miniaturization.

Also consider the fact that scrypt coins are largely popular,  ie: adopted, because of their rapport with GPU mining.  You had hundreds of thousands of gpus mining bitcoins that suddenly needed something else to do and spurred on the adoption of litecoin (and later other scrypt coins).  Take that away, suddenly vertcoin is the new favorite.  Altcoins not being the forerunner that bitcoin is - I would be surprised if they responded the same positive way to the introduction of ASICs as bitcoin did.  Look at how scrypt difficulty has risen since Christmas and how alt coin prices have inversely adjusted, almost 1:-1.

The asic's shipping in the fall/early winter (namely, KNC titan) will be close to 5x more efficient in terms of initial cost vs GPU, and about 26x more efficient in terms of power usage when compared to current GPU standard.  Although KNC has not disclosed the manufacturing process upon which their new scrypt asic is being manufactured, one can estimate that if it is 2.5x more efficient than gridseed's 55nm process, it is likely being produced on 28nm.  If you are one to buy this ASIC, you can expect that the first 20nm scrypt asics (~Q1/Q2 2015) to roll out will be, at most, 1.4x more power efficient than your 28nm due to the way current leakage of sram scales on process miniaturization.

SO, what does all that mean?

For bitcoin/sha256 asics:
Current/Next gen bitcoin/sha256 asics are already at the forefront of manufacturing process, they cannot get more power efficient without waiting for a new manufacturing process to be available (14nm) which is not on the roadmap for their scale of production until at least end of 2015 - if Intel isn't doing it now, they wont be doing it for another year.  This means that the only way to increase your SHA256 hashrate using asics is to scale-out.  ie: buy more.  As a result and when compared to previous improvements in ASIC generations and their resulting efficiency jumps - these current 20nm asics will not depreciate as quickly as, for example, the 55nm asics.  Increasing asic efficiency 10x every year is no longer possible now that we've reached (or caught up to, rather) the smallest reasonable manufacturing process and thus, the most efficient sha256 asics (for MH/w) without improving the actual design of the circuit (minimal gains are to be had here, but not 10x).  The only way for them to go now is down in price (with increase in quantity produced).

For scrypt asics:
Largely due to the familiarity of manufacturers with die shrink on exsiting sha256 asics, the second gen scrypt asics (again, referring to KNCs example) are already very close to the smalles process and thus peak efficiency.  With the most efficient asic capable of being produced today only being ~40% more efficient than a 28nm example, which means the "best" scrypt asic that we'll see before mid-end 2015 will only ever be ~35x more power efficient than GPUs, still a significant margin no doubt, but not as extreme as the best 20nm sha256 asics out now which are nearly 1000x more efficient than GPU.

TL;DR:  The best next gen scrypt asics (arriving Q3 this year) are roughly 22x less efficient than gpu mining than current gen bitcoin asics are, but are still substantially (~26x) more power efficient than GPUs.  Once they reach 20nm process , likely Q2 2015, they will be ~35x more power efficient.

TL;DR2: Next gen scrypt asics shipping in the fall are pretty close to the best you can expect for asic efficiency within the next 18 months (within ~40%) and thus, you will not get washed out by future asics as hard as second gen bitcoin asic buyers were.  BUT, asics might be far more detrimental to scrypt coin profitability per KH than bitcoin asics were to sha256 profitability.

Just unplug the gpus and plug them back in???

Thinking of exchanging the board if it keeps doing this...if the second one does the same thing I might switch to a different one, though selection is limited.

Do you guys know if the Maximus VI Hero can run 6 gpus?

Started getting this on a 6 750 ti rig:

"Windows has stopped this device because it has reported problems. (Code 43)"

All 6 of them show up with an exclamation mark next to the device in device manager. Using win 7 64, and 6 usb risers, zotac reference cards without 6 pin. Used to be working just fine a day ago.

Any clues?

All good now... 

Well got to do 14mh/s on my 750 ti, but now my 780 won't go past 574mhz (2d clocks, and chrome is open lol, wtf?)

Amazing speedup Christian!

EDIT: a restart fixed it, lel 37mh/s