[ANNOUNCE] Tenebrix, a CPU-friendly, GPU-hostile cryptocurrency

[Lolcust]

I've been mining at 600 khash/s (2 threads) for a few hours now, which seems to be about 15% of the power of the entire network. I find it very hard to believe that there are only six 3-year-old Macbooks mining the entire chain right now, and I haven't gotten the one block per 30 minutes that I should be. Any idea what's wrong?

Confirmed - hashrate reporting broke to shit in your case for currently unknown reason.

Actual hashrate of your box is much less, (or you managed to engage wrong PoW alltogether)

[tacotime]

There is something wrong with your build... when one of my builds was messed up I was able to mine the genesis block and was mining a new block every 10 minutes at 3kh/s.  But of course, no other nodes in the network would confirm this.

[bulanula]

LOL 600 khash/s !!!

Any plans to merge mine this shit with Fairbrix and Litecoin ( as they are all using scrypt AMD shit ) Or else I'm going to Solidcoin thank you very much.

[Vitalik Buterin]

PROOF OF WORK RESULT: false (boooo)

Got that a few times now. So it looks like I am, in fact, completing 600,000 (x2?) invalid hashes every second.

Any idea what the problem is?

[MaGNeT]

LOL 600 khash/s !!!

Any plans to merge mine this shit with Fairbrix and Litecoin ( as they are all using scrypt AMD shit ) Or else I'm going to Solidcoin thank you very much.

Bye.

[Matoking]

PROOF OF WORK RESULT: false (boooo)

Got that a few times now. So it looks like I am, in fact, completing 600,000 (x2?) invalid hashes every second.

Any idea what the problem is?

Are you sure you are using --algo scrypt launch parameter?

[Vitalik Buterin]

Are you sure you are using --algo scrypt launch parameter?

Just tried adding that. Now it just prints out the help text, which says that --algo can only take c, 4way, via, cryptopp and cryptopp_asm32.

[Matoking]

Are you sure you are using --algo scrypt launch parameter?

Just tried adding that. Now it just prints out the help text, which says that --algo can only take c, 4way, via, cryptopp and cryptopp_asm32.

You probably compiled the master branch instead of the cpumine branch (which has the scrypt algorithm implemented).

[film2240]

I am a little curious about this currency? Why have you opted to make it GPU 'hostile'? What do you mean by this? I'm a little lost as I'm used to mining with GPU for everything else.Can GPU mining work but with limitations or is it all blocked from GPU? How can Tenebrix tell if CPU/APU/GPU/FPGA is used to mine it rather than being CPU mined like intended? Theoretically some guy can just point his GPU to a named worker set to mine this currency?

[bulanula]

I am a little curious about this currency? Why have you opted to make it GPU 'hostile'? What do you mean by this? I'm a little lost as I'm used to mining with GPU for everything else.Can GPU mining work but with limitations or is it all blocked from GPU? How can Tenebrix tell if CPU/APU/GPU/FPGA is used to mine it rather than being CPU mined like intended? Theoretically some guy can just point his GPU to a named worker set to mine this currency?

LOL. Read up mate. The algo is scrypt shit. Cannot be accelerated on GPUs. Only Linux 64 bit AMD plastic shit CPUs. No love for Intel on Linux 64 or even Windblows.

[Vitalik Buterin]

You probably compiled the master branch instead of the cpumine branch (which has the scrypt algorithm implemented).

Thank you!!! Much more reasonable 0.80 khash/s now.

[ama]

You probably compiled the master branch instead of the cpumine branch (which has the scrypt algorithm implemented).

How do you compile the cpumine branch, please?

[film2240]

I am a little curious about this currency? Why have you opted to make it GPU 'hostile'? What do you mean by this? I'm a little lost as I'm used to mining with GPU for everything else.Can GPU mining work but with limitations or is it all blocked from GPU? How can Tenebrix tell if CPU/APU/GPU/FPGA is used to mine it rather than being CPU mined like intended? Theoretically some guy can just point his GPU to a named worker set to mine this currency?

LOL. Read up mate. The algo is scrypt shit. Cannot be accelerated on GPUs. Only Linux 64 bit AMD plastic shit CPUs. No love for Intel on Linux 64 or even Windblows.

Ok thanks.I don't get much of a chance to go on these forums much anymore due to constant work I have to do elsewhere so I can't really read up on much these days.Most of us have jobs including me and sometimes those jobs can get in the way of having a social life (I know,it's annoying but that's life I guess)

Anyways thank you for giving me an idea of why GPUs will be useless with mining this currency.Motto is if you want to mine with GPU,look elsewhere.

[Lolcust]

I am a little curious about this currency? Why have you opted to make it GPU 'hostile'? What do you mean by this? I'm a little lost as I'm used to mining with GPU for everything else.Can GPU mining work but with limitations or is it all blocked from GPU? How can Tenebrix tell if CPU/APU/GPU/FPGA is used to mine it rather than being CPU mined like intended? Theoretically some guy can just point his GPU to a named worker set to mine this currency?

LOL. Read up mate. The algo is scrypt shit. Cannot be accelerated on GPUs. Only Linux 64 bit AMD plastic shit CPUs. No love for Intel on Linux 64 or even Windblows.

Ok thanks.I don't get much of a chance to go on these forums much anymore due to constant work I have to do elsewhere so I can't really read up on much these days.Most of us have jobs including me and sometimes those jobs can get in the way of having a social life (I know,it's annoying but that's life I guess)

Anyways thank you for giving me an idea of why GPUs will be useless with mining this currency.Motto is if you want to mine with GPU,look elsewhere.

You can mine this with CPU while mining something else with GPU.

[Matoking]

I am a little curious about this currency? Why have you opted to make it GPU 'hostile'? What do you mean by this? I'm a little lost as I'm used to mining with GPU for everything else.Can GPU mining work but with limitations or is it all blocked from GPU? How can Tenebrix tell if CPU/APU/GPU/FPGA is used to mine it rather than being CPU mined like intended? Theoretically some guy can just point his GPU to a named worker set to mine this currency?

LOL. Read up mate. The algo is scrypt shit. Cannot be accelerated on GPUs. Only Linux 64 bit AMD plastic shit CPUs. No love for Intel on Linux 64 or even Windblows.

It's not Tarsnap's or Lolcust's problem if you can't compile the program with Intel-specific optimizations, silly.

You could be actually getting more khashes out of your Intel CPU if you would have done some research instead of spouting nonsense like you've been doing for the last 100+ posts.

[Raoul Duke]

WOW, this sh*t is still alive? lol Bitcointalk never ceases to amaze me

[bulanula]

I am a little curious about this currency? Why have you opted to make it GPU 'hostile'? What do you mean by this? I'm a little lost as I'm used to mining with GPU for everything else.Can GPU mining work but with limitations or is it all blocked from GPU? How can Tenebrix tell if CPU/APU/GPU/FPGA is used to mine it rather than being CPU mined like intended? Theoretically some guy can just point his GPU to a named worker set to mine this currency?

LOL. Read up mate. The algo is scrypt shit. Cannot be accelerated on GPUs. Only Linux 64 bit AMD plastic shit CPUs. No love for Intel on Linux 64 or even Windblows.

Ok thanks.I don't get much of a chance to go on these forums much anymore due to constant work I have to do elsewhere so I can't really read up on much these days.Most of us have jobs including me and sometimes those jobs can get in the way of having a social life (I know,it's annoying but that's life I guess)

Anyways thank you for giving me an idea of why GPUs will be useless with mining this currency.Motto is if you want to mine with GPU,look elsewhere.

You can mine this with CPU while mining something else with GPU.

Yes it is magic !!! Keep in mind that this only works for AMD processors. Intel + Windblows = speed sucks / unusable.

[Lolcust]

You probably compiled the master branch instead of the cpumine branch (which has the scrypt algorithm implemented).

How do you compile the cpumine branch, please?

It's the default branch.

[ama]

How do you compile the cpumine branch, please?

It's the default branch.

Ah, excellent, thank you.  :-)

[MaGNeT]

I am a little curious about this currency? Why have you opted to make it GPU 'hostile'? What do you mean by this? I'm a little lost as I'm used to mining with GPU for everything else.Can GPU mining work but with limitations or is it all blocked from GPU? How can Tenebrix tell if CPU/APU/GPU/FPGA is used to mine it rather than being CPU mined like intended? Theoretically some guy can just point his GPU to a named worker set to mine this currency?

LOL. Read up mate. The algo is scrypt shit. Cannot be accelerated on GPUs. Only Linux 64 bit AMD plastic shit CPUs. No love for Intel on Linux 64 or even Windblows.

For SandyBridge CPUs (corei7 with four digit model numbers).

git the package.
./configure
(screw the flags)
gedit Makefile
find "CFLAGS = "
Change that line to: CFLAGS = -march=native -O3 -Wall -msse2 -msse3 -msse4.1 -msse4.2 -msse4 -mavx
Brought my performance from 2.6kh/s per core (running one thread per core) to 3.66-3.7kh/s per core.

Tested with 6 threads, +2 kh/s in total.
HT works now!
Just needed some hardcore flags, that's all.