★★DigiByte|极特币★★[DGB]✔ Core v6.16.5.1 - DigiShield, DigiSpeed, Segwit - page 1174.

MentalCollatz

newbie

Activity: 40

Merit: 0

Quote from: DigiByte on November 02, 2014, 01:34:35 PM

Since our difficulty adjustment is different than Myriad we have some more protection for this.

I don't see how that follows. It's really the exact same thing but with max adjustments increased 10x. Historically this has led to insane difficulty swings (even at constant hashrates) which can be difficult to distinguish from actual tomfoolery without going in and comparing timestamps. One slight advantage is that -log(max_diff_down)/log(min_diff_up) is 1.94 for Myriad but only 1.5 for DigiByte, meaning the attacker would need a slightly greater share of the hashpower to attack DigiByte. Since DGB has a higher hash rate anyway, a successful attack seems less likely.

BTW I've updated my pull request on github.

Arsenay

full member

Activity: 204

Merit: 100

Quote from: HR on November 02, 2014, 04:06:22 PM

....

I practice
I like the silence, fluffy cats and closed system blocks computers with dust filters and low noise ))

their pitiful 27 Mh/s
http://omargpools.ca/dgb/index.php?page=statistics&action=pool
I get this:

Rig 1
gpu0 - HD 7790 - 1.7 ... 1.8 Mh/s (-i17)
gpu1 HD 7950 - 4.1 ... 4.2 Mh/s (-i18)

cpu fx-8350
------------------

Rig 2
GPU 0 - HD 7850 - 2.6 Mh/s (-i17)
GPU1 - HD 7950 - 3.8 Mh/s (-i17)

CPU fx-8350

Rig 3
GPU 0 - HD 7850 - 2.6 Mh/s (-i17)
GPU 1 - HD 7850 - 2.6 Mh/s (-i17)

CPU fx-8350

Rig 4
GPU 0 - HD 7850 - 2.6 Mh/s (-i17)
GPU 1 - HD 7970 - 4.65 Mh/s (-i17)

CPU fx-8350

Rig 5
GPU0 - HD 7790 - 1.7 ... 1.8 Mh/s (-i17)

CPU fx-8350

-----------------------------------------------
it gave today 57632.27304101 DGB

As you can see, there is no overloaded ))

and all can work 24/7 in summer when the ambient temperature of 35 degrees

Kayahoga

full member

Activity: 146

Merit: 100

Can anyone confirm that Digihash is hosted in New Jersey? I thought it was going to be in Texas or something originally but since my ping time is a lot lower than when it first went live I am going to switch over. Plus, supporting the devs =).

Also a thumbs up for http://birdspool.no-ip.org:5021/static/stats/ that p2pool has been rock solid and birds a cool guy that I've gotten a chance to talk to a few times. If you are really concerned about your fees, I believe birdspool is only .5% if im not mistaken.

Its my opinion we really should be spreading the hash around by supporting the Devs pool or boosting the P2pool pools.

HR

legendary

Activity: 1176

Merit: 1011

Transparency & Integrity

Quote from: Kayahoga on November 02, 2014, 04:13:57 PM

Quote from: HR on November 02, 2014, 04:06:22 PM

It's also always at the top of the list at http://www.whattomine.com/ . Qubit gives Skein a close run for that distant second.

Do you use the default parameters or do you enter data that matches your cards for http://whattomine.com?

Especially given the attacks on Groestl im thinking I need to switch from qubit to groestl.

The default parameters are based on the -k groestlcoin kernel, and even then, groestl is always fighting for the top spot. With MYR even more so. I change the parameters to meet with the -k myriadcoin-groestl kernel, and that's double the -k groestlcoin.

Here's something else that looks fairly reliable: https://docs.google.com/spreadsheets/d/1OdhCDxtDtLLuW-dK4hfIrD55c2nBGXbBonG0haBJB0o/edit#gid=0 That groestl data is also based on the simple -k groestlcoin kernel analysis . . . so double what you see there and . . .

BTW: https://dgb-groestl.theblocksfactory.com/ hashrate has shot up by 10x in the last 24 hours. Must be everyone who was on cryptopoolmining. Huh

Boostpool is still hammering away too. Embarrassed

Edit:

People in the U.S. should also seriously consider http://birdspool.no-ip.org:5021/static/stats/ - it's reliable and honest; you just have to wait for the rolling payouts to ramp up (and the other side of that coin is that you continue to receive payouts for the rolling payout period even after you've left!). The new, official, DigiByte NOMP pools look good too.

HR

legendary

Activity: 1176

Merit: 1011

Transparency & Integrity

Quote from: esotericizm on November 02, 2014, 03:03:03 PM

Quote from: HR on November 02, 2014, 02:48:44 PM

It's out of my hands now as it's been sent to DigiByte to use as they see fit. Perhaps you might send them a PM offering your services.

I think it should be relatively easy to clean up (a few AV products generate alerts for the Windows exe, for example) and turn into something DigiByte official (giving credit to previous developers of course).

It's by far and away the most profitable way to mine DGB.

Why make me chase the dev's? Sad

Because the Dev's expressed an interest in making it DGB official. That's a good thing. It'll give clout to the miner eventually released, and will also add to DigiByte's resume as it were.

Anyone who wants to download the current grs-sgminer (warts and all) that let's you use the -k myriadcoin-groestl kernel can do so by downloading the AidBit wallet http://www.aidbit.net/download/ (be sure to disable your AV beforehand) which installs the windows version along with the wallet install (I believe this is still correct anyway). Then, you'll need to locate your miner install, and independently configure appropriately. For everyone else, I suggest waiting for the DigiByte team to release a new, improved dgb-groestl-sgminer. The Linux version already looks great and ready to go as is, and just needs to be renamed and uploaded to github. The Windows version needs a couple of tweaks and to be made official . . . I think anyway.

I only have remedial code reading abilities, and am not a programmer by any means.

Kayahoga

full member

Activity: 146

Merit: 100

Quote from: HR on November 02, 2014, 04:06:22 PM

It's also always at the top of the list at http://www.whattomine.com/ . Qubit gives Skein a close run for that distant second.

Do you use the default parameters or do you enter data that matches your cards for http://whattomine.com?

Especially given the attacks on Groestl im thinking I need to switch from qubit to groestl.

Kayahoga

full member

Activity: 146

Merit: 100

I have 2 rigs that together use 920 watts and get me about 75-80k DGB per day when running Qubit.

Edit: This is with my cards being undervolted and running the engine clock at 1050 / mem clock at 1500. I have a mix of 280x / 270x

HR

legendary

Activity: 1176

Merit: 1011

Transparency & Integrity

Quote from: Arsenay on November 02, 2014, 03:20:22 PM

Quote from: Kayahoga on November 02, 2014, 02:53:36 PM

Quote from: HR on November 02, 2014, 02:48:44 PM

It's out of my hands now as it's been sent to DigiByte to use as they see fit. Perhaps you might send them a PM offering your services.

I think it should be relatively easy to clean up (a few AV products generate alerts for the Windows exe, for example) and turn into something DigiByte official (giving credit to previous developers of course).

It's by far and away the most profitable way to mine DGB.

Groestl beats out qubit in profitability? I thought pools like boostpool.com were inflating the Groestl difficulty enough that it was harder to get normalized payouts.

I tried everything
qubit is best for my hd 7xxx: 7970 7950 7850 7790
cold and less diff
and more profit
and all of this perfectly clear here:
https://dgb-qubit.theblocksfactory.com

Qubit is a distant second, and, even though electrical usage is more or less the same, my cards heat up much more than with groestl. All things considered, groestl is the clear winner in my opinion. How do your Qubit proceeds match the Groestl proceeds depicted below?

Quote from: HR on November 01, 2014, 07:24:54 AM

57 Day Chart - DGB (and BTC equivalent) Daily Mining Proceeds for each 1 MH/s

Check out how your BTC equivalent proceeds have stayed constant – for a variety of reasons, but mainly because as price falls, mining falls, and difficulty falls, giving the miner more DGB rewards, and thusly keeping the BTC equivalent steady. Interesting observation I thought.

It's also always at the top of the list at http://www.whattomine.com/ . Qubit gives Skein a close run for that distant second.

Arsenay

full member

Activity: 204

Merit: 100

Quote from: Kayahoga on November 02, 2014, 02:53:36 PM

Quote from: HR on November 02, 2014, 02:48:44 PM

It's out of my hands now as it's been sent to DigiByte to use as they see fit. Perhaps you might send them a PM offering your services.

I think it should be relatively easy to clean up (a few AV products generate alerts for the Windows exe, for example) and turn into something DigiByte official (giving credit to previous developers of course).

It's by far and away the most profitable way to mine DGB.

Groestl beats out qubit in profitability? I thought pools like boostpool.com were inflating the Groestl difficulty enough that it was harder to get normalized payouts.

I tried everything
qubit is best for my hd 7xxx: 7970 7950 7850 7790
cold and less diff
and more profit
and all of this perfectly clear here:
https://dgb-qubit.theblocksfactory.com

esotericizm

hero member

Activity: 750

Merit: 500

Quote from: HR on November 02, 2014, 02:48:44 PM

It's out of my hands now as it's been sent to DigiByte to use as they see fit. Perhaps you might send them a PM offering your services.

I think it should be relatively easy to clean up (a few AV products generate alerts for the Windows exe, for example) and turn into something DigiByte official (giving credit to previous developers of course).

It's by far and away the most profitable way to mine DGB.

Why make me chase the dev's? Sad

HR

legendary

Activity: 1176

Merit: 1011

Transparency & Integrity

Quote from: Kayahoga on November 02, 2014, 02:53:36 PM

Quote from: HR on November 02, 2014, 02:48:44 PM

It's out of my hands now as it's been sent to DigiByte to use as they see fit. Perhaps you might send them a PM offering your services.

I think it should be relatively easy to clean up (a few AV products generate alerts for the Windows exe, for example) and turn into something DigiByte official (giving credit to previous developers of course).

It's by far and away the most profitable way to mine DGB.

Groestl beats out qubit in profitability? I thought pools like boostpool.com were inflating the Groestl difficulty enough that it was harder to get normalized payouts.

My periodic postings regarding mining profitability are all groestl.

HR

legendary

Activity: 1176

Merit: 1011

Transparency & Integrity

Quote from: Kayahoga on November 02, 2014, 02:08:16 PM

This certainly seems to be wrecking havoc on the MYR blockchain.

What are the suggested fixes for DGB? I thought I remembered that it wasn't possible to mine more than 6 blocks in a row of a single algorithm. Wouldn't that successfully mitigate this threat?

From what I've been reading, the general opinion is that the most vulnerable "alts" are those that have deviated the most from the original BTC code, with the more "bells and whistles", neglect of basic security issues, and 'coders' who really don't have much of an idea about what they're doing, all leading to the most potential disaster. MYR certainly fits that bill.

Let's hope that DGB's more serious and conservative, security sensitive, and greater knowledge and know-how makes things different for us.

Kayahoga

full member

Activity: 146

Merit: 100

Quote from: HR on November 02, 2014, 02:48:44 PM

It's out of my hands now as it's been sent to DigiByte to use as they see fit. Perhaps you might send them a PM offering your services.

I think it should be relatively easy to clean up (a few AV products generate alerts for the Windows exe, for example) and turn into something DigiByte official (giving credit to previous developers of course).

It's by far and away the most profitable way to mine DGB.

Groestl beats out qubit in profitability? I thought pools like boostpool.com were inflating the Groestl difficulty enough that it was harder to get normalized payouts.

24hralttrade

hero member

Activity: 756

Merit: 500

Community Liaison,How can i help you?

Quote from: DigiByte on November 02, 2014, 01:34:35 PM

It does appear someone is attempting to do something similar to DigiByte on Groestl & other algos. All appears well for the moment, but as always the more hash we can get the better.

Where do you need the hash the most, groestl? Willing to rent some to secure.

Edit: can't seem to find any groestl rentals.
Do we really need more hash to secure untill the possible upcoming hardfork?

HR

legendary

Activity: 1176

Merit: 1011

Transparency & Integrity

Quote from: esotericizm on November 02, 2014, 02:35:09 PM

Quote from: HR on November 02, 2014, 02:24:13 PM

Quote from: HR on November 01, 2014, 02:05:24 PM

Quote from: ReSl on November 01, 2014, 08:48:44 AM

Quote from: HR on November 01, 2014, 07:24:54 AM

ALSO:

I’ve got the original Myriad-Groestl srcxxx github optimized files if anyone is interesting in forking them - basically changing the name (since they’re open source to begin with) and then posting it to github. Send me a PM if you’re interested.

Hi HR, thank you for keeping us up to date with your stats. I will have a look on the original Myriad-Groestl srcxxx optimized bins. I thougt these bins only work on his pool. Maybe i can change this to get it work on every pool. Since difficulty is dropping again i could be profitable again to put a bit more power to my cards.

He originally developed two different optimized kernels that significantly increased hashrates over the previous sph-sgminer ( https://github.com/prettyhatemachine/sph-sgminer ). His miner, grs-sgminer, allowed you to use the "-k groestlcoin" switch on any pool, or the "-k optimized" switch that only worked on his pool.

My understanding is that he depreciated the github files for his original grs-sgminer that allowed you to use either switch. I could be mistaken though, but the idea that I have is that his current grs-sgminer only works with his proprietary "-k optimized" switch. If that's the case, then I think it would be interesting to fork his original grs-sgminer making available new installs once again that permit the use of any of the non-optimized kernels on any pool of the miner's choosing (grs-sgminer, using the "-k myriadcoin-groestl" switch, more than doubles the hashrate of sph-sgminer with only about a 20% increase in electrical usage - not bad at all).

https://bitcointalksearch.org/topic/m.7503640

https://bitcointalksearch.org/topic/anngroestlmyriadgroestl-pool-closed-652849

I would like to correct something in the above post (it's been a while since things have been on "autopilot" and my memory didn't serve me too well, and, today, when I was putting together some stuff for DigiByte, I realized my mistake):

It was grs-sgminer's original "-k groestlcoin" kernel that doubled sph-sgminer's hashrate, not the "-k myriadcoin-groestl".

The "-k myriadcoin-groestl" kernel quadruples the original sph-sgminer's hashrate! (I even understated it to you DigiByte in the PM I sent by saying it tripled the hash rate . . . it's actually a quadruple!)

More specifically, with a 7950, sph-sgminer ran at about 5 Mh/s, grs-sgminer with -k groestlcoin at about 10 Mh/s, and grs-sgminer with -k myriadcoin-groestl has a hashrate of 20 Mh/s.

If you wouldn't mind sending me the source code I'll take a crack at it.

It's out of my hands now as it's been sent to DigiByte to use as they see fit. Perhaps you might send them a PM offering your services.

I think it should be relatively easy to clean up (a few AV products generate alerts for the Windows exe, for example) and turn into something DigiByte official (giving credit to previous developers of course).

It's by far and away the most profitable way to mine DGB.

ReSl

sr. member

Activity: 254

Merit: 250

Quote from: esotericizm on November 02, 2014, 02:35:09 PM

If you wouldn't mind sending me the source code I'll take a crack at it.

This sounds great.

esotericizm

hero member

Activity: 750

Merit: 500

Quote from: HR on November 02, 2014, 02:24:13 PM

Quote from: HR on November 01, 2014, 02:05:24 PM

Quote from: ReSl on November 01, 2014, 08:48:44 AM

Quote from: HR on November 01, 2014, 07:24:54 AM

ALSO:

I’ve got the original Myriad-Groestl srcxxx github optimized files if anyone is interesting in forking them - basically changing the name (since they’re open source to begin with) and then posting it to github. Send me a PM if you’re interested.

Hi HR, thank you for keeping us up to date with your stats. I will have a look on the original Myriad-Groestl srcxxx optimized bins. I thougt these bins only work on his pool. Maybe i can change this to get it work on every pool. Since difficulty is dropping again i could be profitable again to put a bit more power to my cards.

He originally developed two different optimized kernels that significantly increased hashrates over the previous sph-sgminer ( https://github.com/prettyhatemachine/sph-sgminer ). His miner, grs-sgminer, allowed you to use the "-k groestlcoin" switch on any pool, or the "-k optimized" switch that only worked on his pool.

My understanding is that he depreciated the github files for his original grs-sgminer that allowed you to use either switch. I could be mistaken though, but the idea that I have is that his current grs-sgminer only works with his proprietary "-k optimized" switch. If that's the case, then I think it would be interesting to fork his original grs-sgminer making available new installs once again that permit the use of any of the non-optimized kernels on any pool of the miner's choosing (grs-sgminer, using the "-k myriadcoin-groestl" switch, more than doubles the hashrate of sph-sgminer with only about a 20% increase in electrical usage - not bad at all).

https://bitcointalksearch.org/topic/m.7503640

https://bitcointalksearch.org/topic/anngroestlmyriadgroestl-pool-closed-652849

I would like to correct something in the above post (it's been a while since things have been on "autopilot" and my memory didn't serve me too well, and, today, when I was putting together some stuff for DigiByte, I realized my mistake):

It was grs-sgminer's original "-k groestlcoin" kernel that doubled sph-sgminer's hashrate, not the "-k myriadcoin-groestl".

The "-k myriadcoin-groestl" kernel quadruples the original sph-sgminer's hashrate! (I even understated it to you DigiByte in the PM I sent by saying it tripled the hash rate . . . it's actually a quadruple!)

More specifically, with a 7950, sph-sgminer ran at about 5 Mh/s, grs-sgminer with -k groestlcoin at about 10 Mh/s, and grs-sgminer with -k myriadcoin-groestl has a hashrate of 20 Mh/s.

If you wouldn't mind sending me the source code I'll take a crack at it.

HR

legendary

Activity: 1176

Merit: 1011

Transparency & Integrity

Quote from: HR on November 01, 2014, 02:05:24 PM

Quote from: ReSl on November 01, 2014, 08:48:44 AM

Quote from: HR on November 01, 2014, 07:24:54 AM

ALSO:

I’ve got the original Myriad-Groestl srcxxx github optimized files if anyone is interesting in forking them - basically changing the name (since they’re open source to begin with) and then posting it to github. Send me a PM if you’re interested.

Hi HR, thank you for keeping us up to date with your stats. I will have a look on the original Myriad-Groestl srcxxx optimized bins. I thougt these bins only work on his pool. Maybe i can change this to get it work on every pool. Since difficulty is dropping again i could be profitable again to put a bit more power to my cards.

He originally developed two different optimized kernels that significantly increased hashrates over the previous sph-sgminer ( https://github.com/prettyhatemachine/sph-sgminer ). His miner, grs-sgminer, allowed you to use the "-k groestlcoin" switch on any pool, or the "-k optimized" switch that only worked on his pool.

My understanding is that he depreciated the github files for his original grs-sgminer that allowed you to use either switch. I could be mistaken though, but the idea that I have is that his current grs-sgminer only works with his proprietary "-k optimized" switch. If that's the case, then I think it would be interesting to fork his original grs-sgminer making available new installs once again that permit the use of any of the non-optimized kernels on any pool of the miner's choosing (grs-sgminer, using the "-k myriadcoin-groestl" switch, more than doubles the hashrate of sph-sgminer with only about a 20% increase in electrical usage - not bad at all).

https://bitcointalksearch.org/topic/m.7503640

https://bitcointalksearch.org/topic/anngroestlmyriadgroestl-pool-closed-652849

I would like to correct something in the above post (it's been a while since things have been on "autopilot" and my memory didn't serve me too well, and, today, when I was putting together some stuff for DigiByte, I realized my mistake):

It was grs-sgminer's original "-k groestlcoin" kernel that doubled sph-sgminer's hashrate, not the "-k myriadcoin-groestl".

The "-k myriadcoin-groestl" kernel quadruples the original sph-sgminer's hashrate! (I even understated it to you DigiByte in the PM I sent by saying it tripled the hash rate . . . it's actually a quadruple!)

More specifically, with a 7950, sph-sgminer ran at about 5 Mh/s, grs-sgminer with -k groestlcoin at about 10 Mh/s, and grs-sgminer with -k myriadcoin-groestl has a hashrate of 20 Mh/s.

Kayahoga

full member

Activity: 146

Merit: 100

This certainly seems to be wrecking havoc on the MYR blockchain.

What are the suggested fixes for DGB? I thought I remembered that it wasn't possible to mine more than 6 blocks in a row of a single algorithm. Wouldn't that successfully mitigate this threat?

esotericizm

hero member

Activity: 750

Merit: 500

Quote from: DigiByte on November 02, 2014, 01:34:35 PM

Awesome HR, thank you!

Also, to everyone, it appears Myriadcoin has fallen victim to a successful timewarp attack in the past 12 hours. They have issued two hard forks to correct the problem.

It does appear someone is attempting to do something similar to DigiByte on Groestl & other algos. All appears well for the moment, but as always the more hash we can get the better.

If anyone has more details on this please feel free to share. We have been doing a lot of research the past few hours. Since our difficulty adjustment is different than Myriad we have some more protection for this. We are working on an update to fix this issue. We may have to issue an immediate hard fork in the next couple days.

Ooriginal ArtForx Explanation: https://bitcointalksearch.org/topic/m.521772

https://bitcointalksearch.org/topic/bug-time-warp-exploits-why-is-the-attack-chain-accepted-608893

https://bitcointalksearch.org/topic/blocking-the-time-warp-attack-114751

http://www.reddit.com/r/myriadcoin/comments/2l1xfh/myriadcoin_required_update_0925/

http://www.reddit.com/r/myriadcoin/comments/2l22fd/myriadcoin_required_update_0926/

heh! Long day for the myr guys I bet.

Topic: ★★DigiByte|极特币★★[DGB]✔ Core v6.16.5.1 - DigiShield, DigiSpeed, Segwit - page 1174. (Read 3059020 times)