Version 1.4.0 is out.

Download from: https://github.com/srcxxx/grs-sgminer/releases/download/1.4.0/grs-sgminer1_4_0.zip

* switch between Groestlcoin and Myriadcoin-groestl on the fly without restarding the miner
* 5% more hashrate in optimized kernel

Please keep your existing grs-sgminer 1.3.X just in case. There were quite a few changes and I hope I haven't screwed up anything.

If you have any problems, like crashing - please PM or post here.
If you don't have any problems - please post to this thread and let us know if it works faster (or not).
If not - you can still use prior version of grs-sgminer like 1.3, but of course I'd like to optimize the kernel so that it is always faster. And your feedback is very important here.



* I'm getting 20.5MH/s on groestl and 34.2MH/s on myriad-groestl [R9 290 TriX]. Previously I had 19.8MH/s and 32.9MH/s respectively on same hardware. I used exampleGrs.bat and exampleMyr.bat (included in .zip) in the speed tests.

* Looks like increasing the GPU core speed actually decreases the hashrate, I'll do some more tests and post the results.



I did some measurements with a watt-meter on my rig.
Two R9 290 TriX, Windows 7, Pentium G3220, SSD.

Idle:                           80 watt
exampleGrs.bat:            573 watt (20.45 Mhs) 246.5W per card; 12.05 watt per MHs
exampleGrsSlow.bat:      523 watt (16.67 Mhs) 221.5W per card; 13.28 watt per MHs
exampleMyr.bat:           580 watt (34.2 Mhs) 250.0W per card; 7.30 watt per MHs
exampleMyrSlow.bat:     508 watt (27.7 Mhs) 214.0W per card; 7.72 watt per MHs

Results show that optimized kernels use less watts per each megahash.
So if you don't want to switch to optimized kernels because they make more heat, just downclock your GPU so that it uses the same amount of electricity (while providing you with more megahashes).


Thanks
srcxxx

Optimized Groestl pool now supports JoinCoin. Details here: https://bitcointalk.org/index.php?topic=652849

If you have an AMD videocard, you could get 20% - 30% more hashrate than with sph-sgminer.

R9 290 TriX achieves 33.0 MH/s with myriad-groestl.

Thanks
srcxxx

THANK YOU!

JoinCoin pool is now operational:

   {
      "url" : "stratum+tcp://cryptohunger.com:60004",
      "user" : "JakhxuRDsod2kVQiQXcf1k6JomvoTzUB9c",
      "pass" : "xxx",
      "poolname" : "JoinCoinOptimized"
   }

PS: Payouts work fine, I just did a test transfer of mined "J" to bittrex.

> Running on older sgminer speed is 14.1MH/s with 14.6 and 14.8MH/s with opencl files from 13.12
> Same conf&bat run from grs-sgminer gives 12.3MH/s
> Running myriadcoin-optimized the speed is a bit lower ~ 11.9-12MH/s
> Also tested on 5850 - no gain either. But on 290 the speed increase is stunning

Hi!

OK, looks like the kernel is not good for the old hardware that you mentioned.
So I don't recommend that you use grs-sgminer.
I'm quite surprised that just plain myriad-groestl is slower in grs-sgminer, because it is based on OpenCL kernel from sph-sgminer.
Anyways, I'm working on completely different groestl algo and hoping it'll be a lot faster.
In the meantime, I recommend that you use your old miner and some other pool.
I will post to coin threads once I have a faster miner.

Thanks for your time.

Hi!

With Groestl and Myriad Groestl algorithms, you usually need to overclock GPU quite significally. For example, I'm using 1170Mhz on R9 290 (where standard frequency is 1000Mhz).
This happens because these algorithms don't use power hungry memory exchange operations and thus GPU produces less heat and stays within TDP bounds.

I don't have 6970, so cannot check for sure.

What I'd recommend is to take your "old badman's sgminer 4.0" exact command line, change algorithm to "myriadcoin-optimized" and pool to stratum+tcp://cryptohunger.com:60001 and see what hashrate you'll get.
If it'll be less - then grs-sgminer is not well suited for 6970 videocards and It'll be great if you could post your results before stopping with grs-sgminer.

Thanks

Hi!

Please provide your command line / config file.

Thanks

Optimized Groestl pool now supports TrinityCoin. Details here: https://bitcointalk.org/index.php?topic=652849

If you have an AMD videocard, you could get 20% - 30% more hashrate than with sph-sgminer.

R9 290 TriX achieves 33.0 MH/s with myriad-groestl.

PS: Note to the dev - you need at least a Windows wallet for the coin to become more popular.

Thanks
srcxxx

I made it work by adding some of the pools that have non-zero hashrate:

addnode=trinity.suprnova.cc
addnode=flash-mine.com
addnode=gc-pool.ddns.net
addnode=minerpools.com
addnode=mycryptoco.in

Hi all!

Some good news.

A new version of grs-sgminer will be released within a couple of days:
* merged optimized kernel (dynamic switching between groestl and myriad-groestl algo, no need to restart the miner)
* optimized kernel hashrate improved a bit (33.6 vs 32.9 on Myriad and 20.5 vs 19.8 on Groestl [R9 290 TriX @ 1170 Mhz])




Also TrinityCoin (myriad-groestl) has been added on port 60003. Not sure how profitable it is, probably not so much. But it is traded at bittrex.

BTW, if you know of any other groestl or myriadcoin worth mining - please let me know and I'll add it.




And finally, I've added links to the coins threads on the main page (http://cryptohunger.com:81/).
MYR, SFR, GRS and DMD have links to calculators. I did some calculations for a single R9 290 using optimized kernel.
BTC reward per day is:
0.00040709 if you mine GRS
0.00102124 if you mine DMD
0.00112975 if you mine Myriad
0.00539810 if you mine Saffron


PS: Let me know if you are interested in a multipool with payouts in BTC.

Thanks!
srcxxx

Just my two cents...

It is very hard to get to Cryptsy. Even for a relatively old coin like Groestlcoin, for example.
I'd recommend trying for other large exchanges like poloniex or mintpal in the meantime.

If you don't get onto a large exchange soon, it might be really bad for the coin. You probably can see that the difficulty has dropped already.

And finally, perhaps you can put links to existing exchanges (even though they have zero volume).

https://www.onecryex.com/trading/AID_BTC
https://c-cex.com/?p=aid-btc
https://coin-swap.net/market/AID/BTC

Thanks
srcxxx (operator of optimized Groestl pool at http://cryptohunger.com:81)

Just wanted to let you know that I'm working on further optimizations almost every day. It is really hard to squeeze more MHs. I tried 2 other algorithms and both achieved worse results.
I'm hoping to get a 10%-30% speedup before I give up, so I'll keep on trying.

Today I was able to optimize the existing algo a tiny bit. Perhaps 1% - 3%.

Below are BOP files for R9 290 (Hawaii).
groestl
myriad-groestl

I'll try to optimize it a bit more and once finished, I'll do another release and include other videocards (1-3% is not worth a whole release).

Thanks

Optimized SaffronCoin (Groestl algo) pool is now using the new wallet version 1.3.4.

http://cryptohunger.com:81

These are the DMD payments that I sent 5 minutes ago for the time that payments were stuck (31 July - 1 August).

If you are not in the list, please PM me with your DMD wallet address and hashrate (don't write in the thread), I'll check the logs and we'll resolve this.

dFqhVwNJVUoGnWyEAXunyTHzfwbF8dQmq3     0.121777
dVgn7vLJRNUn7oTTfqHHAbTU2YYsTd9C5H      14.2546
dYZfJWNn9tNd9dkxdeUZrL4FsNVAVxnh37     17.9042
dcWh5R6H698nb8CyA2mTmaJAVQ1NbeRxrk     1.715
dWB4uGp3JGk5TdLCSGMWjWprc3gaHJFxtw     5.0574
dFrbh72KkG9nJq5CcERK7enKVYXuV4hic5     15.2376
dP3JvmgUwaSRRBnPPLqCQADYpbJzfokiaC     15.1495
dPMEbYG6xyvwbznQvGeJq7mVpKoPqM7Sci    10.8993
dN5Uw5EJYApoaJqXqwFuq7oV2fe4pqim88     13.3596
dYnvY8M84AMkq2o6K3wQPSAfpCY4w8G4fw     8.6143
dLR8LaWySojvi3dmaB9ioz48eSzFqVGRDx     84.7235
dT9xGBQMFNsEet3uTbzLEhShPKoPaqH8J7     7.5302
dNq11HoLRZfCoFiSQcwrfAMRPSncL6QE3D     18.6692
dQUwgS3RZDqEnsdDgTdjPKuH3yJgBSGTtC     3.0153
dH5rj9E148FsgyYpxPUjE3ezSUapz5PyV4     14.4223
dX37iCdhQHgwnyAVGjcraYgNwg11XrudbF     4.7944
dZgy55s3LXhhkx66dYYSMEKhtdFYgKBFzm     3.4591
dE4iqdxASGxVhW6EnU9hYJwi5ACr4ABnAn     23.7168



Thanks!

Thanks.

> saffroncoind getinfo

{
    "version" : 1030400,
    "protocolversion" : 70002,
    "walletversion" : 60000,
    "balance" : 4.68287255,
    "blocks" : 171902,

OK, I am pretty sure that Diamondcoin on my pool is on the correct blockchain (transactions are visible in Diamond block explorer + when I synced Windows wallet as per steps on DMD OP, I can also see transactions).

I hope it will stay this way. We'll see.

As for the previous payouts... I have about 300 DMD that were not paid out while DMD blockchain was stuck. I'll pay them out manually once the network settles down.

PS: The automatic payment should be working ok now, for example see: http://diamond.danbo.bg:2750/tx/1ac84c0f2ee8970054fb18460948b7430efd7680ad021ae3689e4d1e9951ba11#i6

I spent about 3 hours today trying to get the pool working. I also think that the network is stuck.
Block explorer http://diamond.danbo.bg:2750/ does not work.

It is not clear what fork is correct and what is not.

DMD transactions are sent out, but they are either not being confirmed or are confirmed very slowly.
I would recommend to not mine DMD for now until the network stabilises.

You might want to try saffroncoin on port 60002 (myriadcoin-groestl algorithm). They are going to have block reward halved in a few days.

There are some problems with payments on DMD after the hardfork, I'm looking into that...

The whole DMD blckchain is having troubles, read here for details: https://bitcointalk.org/index.php?topic=580725.2400

There are no hidden fees!
The hashrate is multiplied by the (100% - fee). So you are getting paid for the value displayed in your grs-sgminer. Period.

PS: The pool is on the latest code from github and has blockchain from dmdchain20140731-fast.zip.

thanks for letting me know about the attack on DMD.

I will check the wallet and re-download the blockchain asap.