[Bounty] Scrypt-jane CGMINER

[Hydroponica]

Do you have any ideas about the difference from CPU to GPU?

The difference is significant.  Unless you're using a 4-processor Xeon E5-2670 server as the point of comparison.

And even in that case, the power consumption difference is massive

[ymer]

Do you have any ideas about the difference from CPU to GPU?

The difference is significant.  Unless you're using a 4-processor Xeon E5-2670 server as the point of comparison.

I thought you were on FPGA bro, not GPU.

mind sharing the knowledge

[WindMaster]

I thought you were on FPGA bro, not GPU.

I started (late, 8.5 hours after coin launch) with a massive server farm while I modified cgminer, then once that was working, I moved on to the Xilinx implementation.  I just got the Xilinx approach (for N=32, anyway) going last night.  I'll reevaluate whether to bother continuing to mess with it when N=64 tomorrow, we'll see whether Yac exchange rates continue dropping.  N=32 was not difficult on the FPGA, it's really not difficult to pipeline a bunch of 32 bit wide processing stages (as opposed to, say, 1024 bits of data width for Litecoin).  N=64 starts getting a little hairier.

mind sharing the knowledge

Lots of hints already posted in this thread that'll probably point a fair number of people toward where they need to look.  And if not, perhaps more people will have learned about OpenCL in the process, something they might never have otherwise had the fun of playing with.  I don't need the bounty.  But I'm very curious to see which of the people I gave hints to wins the bounty first, or if someone else that already modified cgminer comes forward to collect the bounty.  Personally, I think the bounty is much too low though.

Actually, most of all, I'm curious to see the hash rates the other implementations achieve(d).  I didn't spend a lot of time optimizing, I moved straight on to writing Verilog for the FPGA attempt.

[ymer]

I thought you were on FPGA bro, not GPU.

I started (late, 8.5 hours after coin launch) with a massive server farm while I modified cgminer, then once that was working, I moved on to the Xilinx implementation.  I just got the Xilinx approach (for N=32, anyway) going last night.  I'll reevaluate whether to bother continuing to mess with it when N=64 tomorrow, we'll see whether Yac exchange rates continue dropping.  N=32 was not difficult on the FPGA, it's really not difficult to pipeline a bunch of 32 bit wide processing stages (as opposed to, say, 1024 bits of data width for Litecoin).  N=64 starts getting a little hairier.

mind sharing the knowledge

Lots of hints already posted in this thread that'll probably point a fair number of people toward where they need to look.  And if not, perhaps more people will have learned about OpenCL in the process, something they might never have otherwise had the fun of playing with.  I don't need the bounty.  But I'm very curious to see which of the people I gave hints to wins the bounty first, or if someone else that already modified cgminer comes forward to collect the bounty.  Personally, I think the bounty is much too low though.

Actually, most of all, I'm curious to see the hash rates the other implementations achieve(d).  I didn't spend a lot of time optimizing, I moved straight on to writing Verilog for the FPGA attempt.

I'm a decent programer but I'm "scared" of looking into openCL because most of my programming is databases, user interfaces, automation etc... not much math involved like all graphics stuff.

What kind of bounty would be worth your time?

Also please don't dump more YAC

[turtle83]

I thought you were on FPGA bro, not GPU.

I started (late, 8.5 hours after coin launch) with a massive server farm while I modified cgminer, then once that was working, I moved on to the Xilinx implementation.  I just got the Xilinx approach (for N=32, anyway) going last night.  I'll reevaluate whether to bother continuing to mess with it when N=64 tomorrow, we'll see whether Yac exchange rates continue dropping.  N=32 was not difficult on the FPGA, it's really not difficult to pipeline a bunch of 32 bit wide processing stages (as opposed to, say, 1024 bits of data width for Litecoin).  N=64 starts getting a little hairier.

mind sharing the knowledge

Lots of hints already posted in this thread that'll probably point a fair number of people toward where they need to look.  And if not, perhaps more people will have learned about OpenCL in the process, something they might never have otherwise had the fun of playing with.  I don't need the bounty.  But I'm very curious to see which of the people I gave hints to wins the bounty first, or if someone else that already modified cgminer comes forward to collect the bounty.  Personally, I think the bounty is much too low though.

Actually, most of all, I'm curious to see the hash rates the other implementations achieve(d).  I didn't spend a lot of time optimizing, I moved straight on to writing Verilog for the FPGA attempt.

Thanks for your tips. Will try tomorrow with pyopencl first. Im proficient python but not C ... so ... if i can somehow by magic get ocl kernel to work... i guess the cgminer side of it should be trivial in comparison.

Can you provide some test data?

i.e. some inputs and known nonce for it? That would be real helpful.

[barwizi]

well people?

[MaGNeT]

I'm mining with GPU now, works great.
Testing it for 2-3 weeks for stability, then release.

[barwizi]

I'm mining with GPU now, works great.
Testing it for 2-3 weeks for stability, then release.

wouldnt u like a "beta " tester alongside you?

[turtle83]

I'm mining with GPU now, works great.
Testing it for 2-3 weeks for stability, then release.

wouldnt u like a "beta " tester alongside you?

+1 willing to donate my time to do some "testing".

[MaGNeT]

I'm mining with GPU now, works great.
Testing it for 2-3 weeks for stability, then release.

wouldnt u like a "beta " tester alongside you?

+1 willing to donate my time to do some "testing".

I'm afraid it will leak out and kills the difficulty for CPU miners.
Not even sure if I'm releasing it.

[mtrlt]

I'm mining with GPU now, works great.
Testing it for 2-3 weeks for stability, then release.

How fast is it? Mine is, with N=128, 4MH/s on a core-underclocked (830->738) HD6990.

[eule]

Adding 200 YAC to the bounty (a small amount for you, not for me), will pay when released. People please add to the bounty or it will go nowhere. ^^

[Boxman90]

Guys, lol, can't you see you're just being trolled? Gold rush sure has struck here.

[barwizi]

I'm mining with GPU now, works great.
Testing it for 2-3 weeks for stability, then release.

wouldnt u like a "beta " tester alongside you?

+1 willing to donate my time to do some "testing".

I'm afraid it will leak out and kills the difficulty for CPU miners.
Not even sure if I'm releasing it.

i dont mind pre-complied for x64 ubuntu, i want to see the feasibility, and considering the money it would make me, i'd be further willing to put 5 BTC for the source code.

[eule]

bump
https://bitcointalk.org/index.php?topic=232241.0