Topic: Feathercoin 0.8.7.0 Released - The NeoScrypt Update - Hardfork block 432,000 - page 9. (Read 45074 times)

The driver crashes are sometimes caused by a lack of system or pagefile memory. Set the pagefile to a MIN and MAX of at least 12gb and lets see what happens.

If you really want to get fancy, create a partition for it or move it to another drive. Some apps/games will also benefit from this.

Ok, let's get back to the technical aspects of mining this coin.

I got my 7970 and 280x builds running stable anywhere from 150 khash to 160 khash, so from what I been reading I am pretty much topped out unless Wolf wants to release his private kernal.

Now I want to try to get some of my 270x boxes to work. Right now I can get them to around 60 khash on each card on Linux, which seems awfully low compared to the 280x builds. I have tried a Windows build and can get ~75 khash for awhile, but I cannot get them to run stable. I get a ton of ATI driver restart messages before it eventually just crashes the whole rig. I can get maybe a hour of run time, but at this point the build is too unreliable to trust.

The 270 rig I have been playing with is Windows 7 Pro 64 bit on a 80 GB SSD, Intel CPU, Asus ZB7-A MB, and 4 Gig G Skill RAM. I have so far tried AMD driver versions 14.9 release, 14.9.1 Beta, 14.9.2 Beta, 14.6 beta, 14.7 RC3. I did have some stability with the 13.12 drivers, however I was back in the 55-60 khash ballpark with those no matter which clock speeds or settings I tried.

Hoping someone out there has had better luck with the 270 series and would be willing to share a few tips. I will take suggestions for either Linux or Windows builds if I can get in the 80 khash+ range. I believe I read someone was getting 90+ khash out of their 270's somewhere, but I could find no details.

It was my fault and misclick - HD 7970
cgminer 3.7.7-updated, you can download it from here h t t p s :  / / cloud.mail.ru/public/7544666eeb01/bin.zip

I have not mentioned ESET-NOD32 because I am well aware that the vast majority of those are false positives.

What do you have to say about the two I posted ? I have enlarged the text so you do not miss it this time.

Feathercoin 0.8.7.0 released
The NeoScrypt Update

It has been a long time in the works but we have finally got NeoScrypt and a GPU miner so we can now release the Feathercoin 0.8.7.0 client with NeoScrypt set to replace Scrypt on block 432,000, this should happen on the 26th October 2014. There is a Twitter countdown to the hard fork available here.

NeoScrypt uses stronger components than the Scrypt we are familiar with. A key element of Scrypt is Salsa which adds memory complexity, the problem is that the version of Salsa in Scrypt is weak and has been broken by differential analysis which is why we see cheap and powerful ASICs. NeoScrypt uses a blend of Salsa and its successor Chacha set to a higher level of strength. In theory these two should not be broken for at least a decade, this gives better protection than simply adding hashing functions.

However the goal is not simply to avoid ASICs forever as this may not be possible though ideally we want to stay in reach of as many people as possible without the need for expensive mining equipment. As the majority of people buying Scrypt ASICs are not doing so to mine Feathercoin and the fact that some very large ASIC suppliers will be releasing products soon it seems sensible to move algorithm now before we face the challenges that hit many SHA-256 alts when the SHA-256 ASICs hit. We are moving to a new tier of hashing where Feathercoin can be the leading coin.

Please be aware that after the update your Scrypt mining setup will no longer work. You will need to use the new GPU miner that we have been developing for several months now. Not only do miners need to upgrade their software but pools do as well.

Feathercoin Downloads
Windows
Mac
Linux

Miner Downloads
CPU Miner 2.4
GPU Miner 3.7.7b
NeoScrypt CPU miner (source)
NeoScrypt GPU miner (source)

Pool modules
NOMP MultiHashing PR
Stratum Algo Module
Stratum Mining Repo

Resources
NeoScrypt, a Strong Memory Intensive Key Derivation Function (white paper)
NeoScrypt - the latest proof of work algorithm (press release)
NeoScrypt (source)

You forget
ESET-NOD32 a variant of Win32/BitCoinMiner.BY
Few antiviruses knows about miners like a viruses. But most antiviruses (better than aegislab and bytehero) sees nothing. Strange that you don't know about this. And now lets close this discussion, there are no malware in that archive, it was normal cgminer.

I've been making SGMiner releases long before SG5 was a thought in anyone's mind. People trust me, especially because I sign shit with the same GPG key I use for bitcoin OTC. If you don't - fine. But until you have actual evidence of malware - hint: you will find none - quit with the bullshit.

AegisLab  W32.Virut
ByteHero  Trojan.Malware.KillAV.Gen.001
https://www.virustotal.com/en/file/d788278716b482d57fc7452a12fe625ef841a3e600f7a15c50dfc48991c47c33/analysis/1415124032/

I have four rigs, one with 14.6rc, 14.7rc, and the other 2 with 14.7rc3.  By far, the 14.6rc leads in hashrate with hd7970s over hd7970s in the 14.7rc and the 14.7rc3 with 280xs.
1000/1500 -w 48 -I 13 -g2.

Yeah 14.9. I just downgraded one rig to 14.7 RC3 on as suggested, and I do see an initial 5 kHash improvement. Right now running about 150-151 khash with 1040/1500 -w 48 -I 13 -g 1. Seems raising the core clock for me does nothing more and in some cases it even reduced the khash a bit. I am still fiddling with different settings, so holding out hope for a bit more....

There is no malware so lets stop talking about it.
Bigger concern is what is updated, as there are no improvements in hash?

What version AMD drivers are installed? 14.9?

I am using Wolf modified neoscrypt140909.Cl file on my installs, so essentially it is the same as 3.7.8. I do have one rig running actually running the 3.7.9 and can confirm that my speeds are essentially the same. This is between rigs of both 7970 and 280x cards, which again are basically the same, but the road block for me seems to kick in at around 140 khash -145 khash. I have tried messing with clocks and settings, but to go from core clocks of ~1040 to 1150 for only a 1-2 khash improvement does not seem to be worth it considering my power draw from the wall goes up as well.

Just when I read people getting 160-175 khash out of similar setups using similar settings makes me think I am overlooking something simple, thus why I am asking for input.

Edit: I should add that all my GPU are using Hynix memory as those appear to be the cards capable of the 175 khash people are reporting.

an arhive with +4 new *.dll-files
nice try to compomize...

wolf0s miner works well, iam useing his public release version. there is also an updated cgminer as well at 3.7.8 which has speeds similar to wolf0s.