Bitcoin Forum
April 28, 2017, 10:34:28 AM *
News: Latest stable version of Bitcoin Core: 0.14.1  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 [45] 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 »
  Print  
Author Topic: [ANN] sph-sgminer: multi-coin multi-algorithm GPU miner | added MaruCoin  (Read 457984 times)
janos666
Hero Member
*****
Offline Offline

Activity: 546


View Profile
April 08, 2014, 10:31:32 PM
 #881

2. Can somebody with a 79xx / R9 test their hashrate if they use a #pragma unroll 1 before the fourth and eighth "for i" loops for the dark kernel? (seperate tests). For 5830 I get small speed gains by disabling loop unrolling. Instructions here: https://bitcointalk.org/index.php?topic=556277.msg6089358#msg6089358

My 290(X)s don't like this /un/optimization.
1493375668
Hero Member
*
Offline Offline

Posts: 1493375668

View Profile Personal Message (Offline)

Ignore
1493375668
Reply with quote  #2

1493375668
Report to moderator
1493375668
Hero Member
*
Offline Offline

Posts: 1493375668

View Profile Personal Message (Offline)

Ignore
1493375668
Reply with quote  #2

1493375668
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
AlexGR
Legendary
*
Offline Offline

Activity: 1204



View Profile
April 08, 2014, 10:41:31 PM
 #882

How much do they lose?
badman74
Hero Member
*****
Offline Offline

Activity: 532


View Profile
April 09, 2014, 12:47:20 AM
 #883

Maybe someone will add support for Aiden coin? https://bitcointalk.org/index.php?topic=558414.0
Its supposed to be scrypt with nfactor 6, but the sgminer build they offer doesn't work for me on 5850 and 6970
And my attempts to use it badman builds are unsuccessful

PS:
-k zuikkis --nfactor 6
doesn't work, maybe i'm missing something? It seems there are hundreds of sgminer builds and all use slightly different syntax and/or features Sad
try that on the build from my github
sgminer.exe stopped working Sad and no bin file is produced.
Tried to put the right bin file but same problem (bin from same command with 4.1.153)
 The only version that i found to work is compiled from Veox github (4.1.153 https://litecointalk.org/index.php?topic=17533.0 ), but some library is missing so the static part of the screen and hotkeys are not working
output of this version:
Code:
[17:08:55] Started sgminer 4.1.153
[17:08:56] Initialising kernel zuikkis.cl with bitalign, unpatched BFI

[17:08:56] Probing for an alive pool
[17:08:56] aiden.suprnova.cc difficulty changed to 512
[17:08:57] Network diff set to 2.88M
[17:09:05] Network diff set to 2.55M
[17:09:05] Stratum from aiden.suprnova.cc detected new block

[17:09:06] Accepted 70d676c6 Diff 581/512 GPU 0
(5s):168.8K (avg):270.3Kh/s | A:512  R:0  HW:0  WU:287.7/m

I'll look into it when i get home.
There have been a number of changes made since I last checked to make sure nfactor still worked

hmm i have definitely broke the nfactor support somehow
looking into it now

Amph
Legendary
*
Online Online

Activity: 1498



View Profile
April 09, 2014, 06:43:13 AM
 #884

i'm talking about groestlcoin , so not myriad


same problem even with --difficulty-multiplier 0.0039062500, share is above target
Did you try 1 and 256?

yeah, both give me the same thing, also isn't 1 the default setting?

pallas
Legendary
*
Offline Offline

Activity: 1274


Black Belt Developer


View Profile
April 09, 2014, 08:07:32 AM
 #885

2. Can somebody with a 79xx / R9 test their hashrate if they use a #pragma unroll 1 before the fourth and eighth "for i" loops for the dark kernel? (seperate tests). For 5830 I get small speed gains by disabling loop unrolling. Instructions here: https://bitcointalk.org/index.php?topic=556277.msg6089358#msg6089358

My 290(X)s don't like this /un/optimization.

sometimes small hashrate gains are just bogus: I had proof that recompiling the exact same .cl file can yield a small performance gain or loose.

AlexGR
Legendary
*
Offline Offline

Activity: 1204



View Profile
April 09, 2014, 01:11:50 PM
 #886

Yes, I've seen bogus fluctuations of 1%, but the 4.25% for #pragma unroll 1 on the 8th "for i" is repeatable.

939kh is the baseline, I did #pragma unroll 1 in all "for" loops. I only gained with the 4th and 8th, but interestingly when doing them both I went <939. So I kept the 8th #pragma unroll 1 which is the fastest of all.

1: 939
2: 896
3: 921
4: 947!
5: 880
6: 877
7: 895
8: 979!
9: 879
10: 939
11: 939
12: 877
13: 938
14: 888
15: 892

I had previously tried #pragma unroll but didn't find any speed. I also hardcoded easily computed values in simd.cl instead of having then been computed, and still didn't get any speedup.
pallas
Legendary
*
Offline Offline

Activity: 1274


Black Belt Developer


View Profile
April 09, 2014, 01:27:23 PM
 #887

Yes, I've seen bogus fluctuations of 1%, but the 4.25% for #pragma unroll 1 on the 8th "for i" is repeatable.

939kh is the baseline, I did #pragma unroll 1 in all "for" loops. I only gained with the 4th and 8th, but interestingly when doing them both I went <939. So I kept the 8th #pragma unroll 1 which is the fastest of all.

I had previously tried #pragma unroll but didn't find any speed. I also hardcoded easily computed values in simd.cl instead of having then been computed, and still didn't get any speedup.

I believe all this has to do with compiler optimizations, which usually can figure out how to best unroll or pre-compute values automatically, but sometimes it's better to do them manually. And results may vary by card, for example a simple optimization may work for a 7950 but lead to worse results on a r9 290.

restless
Legendary
*
Offline Offline

Activity: 924


View Profile
April 09, 2014, 01:43:03 PM
 #888

The real optimisation is possible for Groestl, atm its implementation is at least 10x slower than whats possible
AlexGR
Legendary
*
Offline Offline

Activity: 1204



View Profile
April 09, 2014, 02:08:43 PM
 #889

Hmm... but how much time is spent in Groestl?

Theoretically if one disables hash-by-hash, one can get a breakdown of how much time is consumed in each in order to see where the potential for speedup is.
xfelinho
Member
**
Offline Offline

Activity: 68


View Profile
April 09, 2014, 05:19:48 PM
 #890

Optimization for Groestl is possible

Quote from: cbuchner1 on April 05, 2014, 04:55:02 PM
Quote
we're working on a KILLER groestl, requiring a deeper understanding of the hash algo.
When done, everything else will be toast.

This would turn quark, X11, groestl, myriad-groestl into CUDA coins.

open sourcing it would be a problem. Last time we did this (heavycoin) the AMD guys caught up within a few days...
Christian
coda
Full Member
***
Offline Offline

Activity: 212



View Profile
April 09, 2014, 07:19:31 PM
 #891

hi

just to say there's a new one in the X11 familly that looks neat: Limecoin
https://bitcointalk.org/index.php?topic=559534.0

BTC:18oLLFcxwwzfQt4F2YF7QzKyFeksq3dqsQ
Orrechorre
Full Member
***
Offline Offline

Activity: 159



View Profile
April 09, 2014, 09:38:51 PM
 #892

how do I raise the diff so i can mine quark on a pool with gpu?

cgminer-o
Sr. Member
****
Offline Offline

Activity: 350


1$ =1 MEC 2013 (2,56 $) 5$ =1MEC 2014 ?


View Profile
April 09, 2014, 10:08:16 PM
 #893

 Smiley

▓▓▓ MEC Megacoin POW▓▓▓https://forum.megacoin.co.nz/ ▓▓▓ New Economy Movement▓▓▓▓▓▓▓▓▓ LimecoinX X11 ▓▓▓
istvandv
Sr. Member
****
Offline Offline

Activity: 339


View Profile
April 10, 2014, 03:37:02 AM
 #894

Maybe someone will add support for Aiden coin? https://bitcointalk.org/index.php?topic=558414.0
Its supposed to be scrypt with nfactor 6, but the sgminer build they offer doesn't work for me on 5850 and 6970
And my attempts to use it badman builds are unsuccessful

PS:
-k zuikkis --nfactor 6
doesn't work, maybe i'm missing something? It seems there are hundreds of sgminer builds and all use slightly different syntax and/or features Sad
try that on the build from my github

i have the exact same problem, im running 7850 on linux and ive tried fresh compilations of:

veox 4.1.242 - gpu 0 kh/s and after quitting sgminer goes defuct and using 100% cpu
zuikkis 4.1.153 - segmentation fault core dumped
troky 4.1.153 - gpu 0 kh/s and after quitting sgminer goes defuct and using 100% cpu
badman74 4.1.153 - gpu 0 kh/s and after quitting sgminer goes defuct and using 100% cpu
yacminer 3.5.0-yac2  - share above target

it doesnt seem to like older AMD cards
running them all with nfactor 6

restless
Legendary
*
Offline Offline

Activity: 924


View Profile
April 10, 2014, 09:16:11 AM
 #895

1 more X11 coin - hashcoin https://bitcointalk.org/index.php?topic=560955.0 Wink
Judaz49
Full Member
***
Offline Offline

Activity: 130


View Profile
April 10, 2014, 01:50:11 PM
 #896

did anyone find a solution to 10% hashrate drop after 10mins of mining darkcoin with r9 290s?
loonb
Full Member
***
Offline Offline

Activity: 121


View Profile
April 10, 2014, 03:13:25 PM
 #897

Any working url to last ver?

Free Financial Future
Burst
restless
Legendary
*
Offline Offline

Activity: 924


View Profile
April 11, 2014, 07:56:49 AM
 #898

https://github.com/badman74/Binaries/archive/master.zip - latest binary from Badman74
xfelinho
Member
**
Offline Offline

Activity: 68


View Profile
April 11, 2014, 12:33:03 PM
 #899

Groestl is useless atm, cause Cuda Miner is 2-3x faster  Undecided
djm34
Legendary
*
Offline Offline

Activity: 1036


View Profile WWW
April 11, 2014, 12:46:04 PM
 #900

Groestl is useless atm, cause Cuda Miner is 2-3x faster  Undecided
yep useless... Roll Eyes  you should try to mine ~bcx~ instead, very rare coin and nvidia can't even get any....

djm34 facebook page
BTC: 1NENYmxwZGHsKFmyjTc5WferTn5VTFb7Ze
Pledge for neoscrypt ccminer to that address: 16UoC4DmTz2pvhFvcfTQrzkPTrXkWijzXw
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 [45] 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 »
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!