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Author Topic: [ANN] [SKC] Skeincoin 0.9.3.1 | Skein-SHA2  (Read 157664 times)
Dosmas
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November 03, 2014, 12:07:05 PM
 #1301

nice:0
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November 07, 2014, 04:55:06 PM
 #1302

AuxPow has been reverted for the time being while we investigate an issue.

Please use the 0.8.99.13 wallet (see OP) or the latest version from Github.

Thanks
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November 07, 2014, 05:23:30 PM
 #1303

guys - need active nodes because pool wallet cannot synchronize now

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November 07, 2014, 05:34:13 PM
 #1304

guys - need active nodes because pool wallet cannot synchronize now

195.93.239.31
107.170.194.193
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November 07, 2014, 05:47:07 PM
 #1305

...
I'm offering a 10k skc bounty on an opensource FPGA implementation of the skein algo.

HW Testing shows that I can get about 2.5MH/s (for the sha256/skein algo) out of a Cyclone IV E115.  Not impressive.  That's only burning about 1W though, so that's 2.5MH/s/W which is kinda "cool" if you're gonna make a large rig of dozens of FPGAs.  With my rig, once I get the stratum proxy working, I'm expecting around 180MH/s for myr-skein.  That's about what you'd expect from a single modern GPU ... meh.

Disappointment.

This still will yield about 5x what my rig is yielding today running the scrypt algo though.  ASICs are starting to kick my ass in the Scrypt realm.  Todays cryptocurrency landscape doesn't appear to have much room left for FPGAs.  The algo's are a whole generation newer (and more complex) than they were in BitCoin days and those damned GPUs are REALLY REALLY fast now!  Even though GPUs are not running algo steps in parallel (like an FPGA can) they're running their core at some insane GHz speed that more than makes up for it.  If I really work at timing issues I can get logic steps in the FPGA to run up to 100MHz.  That's roughly the theoretical max for how fast a single fully unrolled instance of an algo machine can run in this FPGA.  The SHA3 generation of algos though are so much more complex than SHA2 that you'd never fit an entire fully unrolled instance in a single IC.  You have to start making trade offs to shrink the logic into something that will fit and this means increasing the number of clocks per hash.  I've run out of steam at 64 clocks per hash for Skein.

Quite a learning experience

not all of the SHA-3 candidates are more complex some are quite simple by design and work well on FPGA most of the issue are in the IDE and getting it to PAR(ISE is such a pita to use) and high fmax is more luck than any thing else  Cry

I have some 28nm Cyclone v FPGA's here will port blake to them once I have finished some other work I do prefer working in Quartus over ISE  Wink

hashrate wise FPGA is not going to beat GPU but it will use less power which for me here in UK is an important factor to mining


AuxPow has been reverted for the time being while we investigate an issue.

Please use the 0.8.99.13 wallet (see OP) or the latest version from Github.

Thanks


I found with AuxPoW that the block start code had issues as it seems that the AuxPoW blocks start before the check  Wink

hope that helps  Cool

Info: GithubBlakecoin.org - BCT Blakecoin thread - Twitter - BCS - BlakeZone  Trade Blakecoin: Cryptopia  Merged Mining Pools: EU3 - NY2/AT1 - LA1
Donation Addresses: BLC: BhmxG9Jkq61MiVhCNfyDRbUwLoAYipM7yQ PHO: BZXPMc8eF9YZcJStskkP2bVia38fv9VmuT BBTC: 2h8c4NbzXJXk6QQ89r7YYMGhe13gQUC2ajD ELT: e7cm6cAgpfhvk3Myh2Jkmi1nqaHtDHnxXb 
UMO: uQH9H17t7kz3eVQ3vKDzMsWCK4hn5nh2gC LIT: 8p8Z4h5fkZ8SCoyEtihKcjzZLA7gFjTdmL BTC: 1Q6kgcNqhKh8u67m6Gj73T2LMgGseETwR6
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November 09, 2014, 09:10:32 PM
 #1306

...
I'm offering a 10k skc bounty on an opensource FPGA implementation of the skein algo.

HW Testing shows that I can get about 2.5MH/s (for the sha256/skein algo) out of a Cyclone IV E115.  Not impressive.  That's only burning about 1W though, so that's 2.5MH/s/W which is kinda "cool" if you're gonna make a large rig of dozens of FPGAs.  With my rig, once I get the stratum proxy working, I'm expecting around 180MH/s for myr-skein.  That's about what you'd expect from a single modern GPU ... meh.

Disappointment.

This still will yield about 5x what my rig is yielding today running the scrypt algo though.  ASICs are starting to kick my ass in the Scrypt realm.  Todays cryptocurrency landscape doesn't appear to have much room left for FPGAs.  The algo's are a whole generation newer (and more complex) than they were in BitCoin days and those damned GPUs are REALLY REALLY fast now!  Even though GPUs are not running algo steps in parallel (like an FPGA can) they're running their core at some insane GHz speed that more than makes up for it.  If I really work at timing issues I can get logic steps in the FPGA to run up to 100MHz.  That's roughly the theoretical max for how fast a single fully unrolled instance of an algo machine can run in this FPGA.  The SHA3 generation of algos though are so much more complex than SHA2 that you'd never fit an entire fully unrolled instance in a single IC.  You have to start making trade offs to shrink the logic into something that will fit and this means increasing the number of clocks per hash.  I've run out of steam at 64 clocks per hash for Skein.

Quite a learning experience

not all of the SHA-3 candidates are more complex some are quite simple by design and work well on FPGA most of the issue are in the IDE and getting it to PAR(ISE is such a pita to use) and high fmax is more luck than any thing else  Cry

I have some 28nm Cyclone v FPGA's here will port blake to them once I have finished some other work I do prefer working in Quartus over ISE  Wink

hashrate wise FPGA is not going to beat GPU but it will use less power which for me here in UK is an important factor to mining


AuxPow has been reverted for the time being while we investigate an issue.

Please use the 0.8.99.13 wallet (see OP) or the latest version from Github.

Thanks


I found with AuxPoW that the block start code had issues as it seems that the AuxPoW blocks start before the check  Wink

hope that helps  Cool

Hehe blue on the SKC thread! Cool!

Indeed, Blake is a very simple SHA3 finalist, and it seems Skein is also very simple because it boils down to a tweaked threefish cipher (which is already FPGA fit).

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November 10, 2014, 03:43:44 PM
 #1307

Just bought me some skein socks from cryptosocks.com  Grin
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November 10, 2014, 04:10:23 PM
 #1308

Just bought me some skein socks from cryptosocks.com  Grin

Have 15 myself, comfortable as can be!

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November 11, 2014, 10:47:46 AM
 #1309

Anyone know when we are moving forward with the merged mining?
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November 12, 2014, 08:52:17 AM
 #1310

0.8.99.14 does not sync after 8-NOV. Added all recommended addnodes

AQJxzVdC8Au8a3nKjbzk5k66sziAJ5Y5Cw
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November 12, 2014, 03:39:54 PM
 #1311

0.8.99.14 does not sync after 8-NOV. Added all recommended addnodes
Do not use 0.8.99.14! (It's the merged version, that got a rollback, because the pools didn't update in time)
Use 0.8.99.13 or 0.8.99.15.

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November 12, 2014, 06:33:14 PM
 #1312

0.8.99.14 does not sync after 8-NOV. Added all recommended addnodes
Do not use 0.8.99.14! (It's the merged version, that got a rollback, because the pools didn't update in time)
Use 0.8.99.13 or 0.8.99.15.

Then why not to correct the link on skeincoin.org ?

AQJxzVdC8Au8a3nKjbzk5k66sziAJ5Y5Cw
gielbier
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November 12, 2014, 06:51:47 PM
 #1313

0.8.99.14 does not sync after 8-NOV. Added all recommended addnodes
Do not use 0.8.99.14! (It's the merged version, that got a rollback, because the pools didn't update in time)
Use 0.8.99.13 or 0.8.99.15.

Then why not to correct the link on skeincoin.org ?
The skeincoin.org version is 0.8.99.13. (skeincoinwin089913.zip) That's the one you need.

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November 18, 2014, 11:34:16 PM
 #1314

What's the chance of SKC having another crack at forking to auxPoW anytime soon?
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November 19, 2014, 03:09:25 AM
 #1315

i'dd say work in progress
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November 24, 2014, 04:09:25 PM
 #1316

Kendra, any update on if or when a new merged mining attempt will be made?

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gielbier
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November 24, 2014, 05:15:57 PM
 #1317

Definitely a good idea. 

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November 26, 2014, 01:00:33 PM
 #1318

What can we do to get this coin really going? I'm looking for ideas and opinions people Smiley

I'm thinking a half.com-like site where everything is denominated in SKC. Preferably something with as little centralization as possible.

Anyone else think this is a good idea?

Yes absolutely!Im positive about it.
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November 28, 2014, 04:00:19 PM
 #1319

Because ppl really seem to like jpgs on ideas and concepts, instead of seeing the real deal.


I will add some screenshots of the app later tonight.


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December 03, 2014, 04:03:36 PM
 #1320

Clearly ppl can't take a joke.
- Puts up fuggly jpg
- Hashrate drops.

I am not joking on matchtracking. It's real, and it needs testing.

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