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Topic: Modified Kernel for Phoenix 1.5 - page 13. (Read 96713 times)

newbie
Activity: 15
Merit: 0
May 21, 2011, 10:05:57 AM
#64
Works very well. I am getting over 440 Mhash/s on HD 5870 (1000/375) with -k phatk AGGRESSION=13 WORKSIZE=256 VECTORS BFI_INT and about 416 Mhash/s on poclbm. However my other HD 5870 running at 950/375 with same switches only hashes about 410 MHash/s with phatk while poclbm gives about 400MHash/s.
full member
Activity: 126
Merit: 100
May 21, 2011, 05:48:53 AM
#63
Works nicely on XP64.
Anyone using it on Linux?
member
Activity: 96
Merit: 10
NOW
May 17, 2011, 07:40:07 AM
#62
Tried it on my 5830 and there was no difference.
full member
Activity: 219
Merit: 120
May 16, 2011, 07:41:16 PM
#61
5xxx maxes out at a worksize of 256.
My dual 5870 (w/o CF bridges) maxes out at WORKSIZE=128.

Nope, that too maxes out at 256. What I said was 768 simply is not valid for 5xxx hardware.

Phoenix should output the error OpenCL is returning instead of covering it up.

I'll probably add this in the next version, but for now it just uses the maximum supported if you enter a higher value.
full member
Activity: 126
Merit: 100
May 16, 2011, 07:31:58 PM
#60
5xxx maxes out at a worksize of 256.
My dual 5870 (w/o CF bridges) maxes out at WORKSIZE=128.

by mxes out he means maximum worksize, not maximum hashrate
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
May 16, 2011, 07:15:28 PM
#59
5xxx maxes out at a worksize of 256.
My dual 5870 (w/o CF bridges) maxes out at WORKSIZE=128.

Nope, that too maxes out at 256. What I said was 768 simply is not valid for 5xxx hardware.

Phoenix should output the error OpenCL is returning instead of covering it up.
newbie
Activity: 28
Merit: 0
May 16, 2011, 05:49:38 PM
#58
5xxx maxes out at a worksize of 256.
My dual 5870 (w/o CF bridges) maxes out at WORKSIZE=128.
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
May 16, 2011, 03:08:53 PM
#57
I'm running 2x 5870s but at 965 core, 300 mem.

phoenix -u http://blah/ -k poclbm VECTORS AGGRESSION=11 BFI_INT PLATFORM=0 DEVICE=0 WORKSIZE=768
Gets me 404 MH/s

phoenix -u http://blah/ VECTORS AGGRESSION=12 BFI_INT PLATFORM=0 DEVICE=0 WORKSIZE=768 -k phatk
Gets me 420 MH/s

Huge improvement. Thanks for this.

5xxx maxes out at a worksize of 256.
newbie
Activity: 9
Merit: 0
May 16, 2011, 03:07:15 AM
#56
I'm running 2x 5870s but at 965 core, 300 mem.

phoenix -u http://blah/ -k poclbm VECTORS AGGRESSION=11 BFI_INT PLATFORM=0 DEVICE=0 WORKSIZE=768
Gets me 404 MH/s

phoenix -u http://blah/ VECTORS AGGRESSION=12 BFI_INT PLATFORM=0 DEVICE=0 WORKSIZE=768 -k phatk
Gets me 420 MH/s

Huge improvement. Thanks for this.
legendary
Activity: 3080
Merit: 1080
May 16, 2011, 02:31:31 AM
#55
Nice little bump up from 405 MH/s to 420 Mh/s on my 5870 but power usage went up 15W as well.

~15Mh/s gain with ~15W more power?  Undecided

5870 @ 970 core 300 mem
Phoenix 1.46 ~405 Hh/s  (-k poclbm DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
72 degC
213-215  Watts (measured by KillAWatt)

Same 5870 @ 970 core 300 mem
Phoenix 1.46 with new Kernel  ~420 Mh/s (-k phatk DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
75 degC
227-230 Watts (measured by KillAWatt)

Can anyone else verify?

I can verify this. My power usage went up too. From 412 to 421 on one rig to 440~

Now the question is whether the extra hash power justifies the extra power consumption..math anyone?

Ok, According the deepbit's reward calculator, 405MH/s gives .097 and 420MH/s gives 0.10 BTC per hour
Switching gains you .003BTC per hour or at the current exchange rate of $7 per: $0.021/h
the difference in power is 15 Watts (.015 kW)
The price of electricity is about $0.10/kWh (http://www.eia.doe.gov/cneaf/electricity/epm/table5_6_b.html)
The cost of electricity from the increase is  .015 kW * $0.10/kWh = .0015$/h

So... the increase in profits is 14 times higher than the increase in cost.  Unless the price drops to .5 or the dificulty goes up 14-fold, pretty much any overclocking / optimizing is worth it.

Edit: Also, the increase in air conditioning will likely double the cost of electricity, but the cost is still is negligible compared to the increase in profit.

Hope this helps Smiley

-Phateus

It helps a lot. Thanks for that analysis. I for one very much appreciate it.
full member
Activity: 238
Merit: 100
May 15, 2011, 07:56:01 PM
#54
Running a single saphire 5850 at 875,900 overclock with ati sdk 2.4

using the poslbm kernel - 328 MHash
using the phatk kernel - 340 MHash!

Very nice!!!  I'll be sure to donate!
newbie
Activity: 52
Merit: 0
May 15, 2011, 07:46:07 PM
#53
Nice little bump up from 405 MH/s to 420 Mh/s on my 5870 but power usage went up 15W as well.

~15Mh/s gain with ~15W more power?  Undecided

5870 @ 970 core 300 mem
Phoenix 1.46 ~405 Hh/s  (-k poclbm DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
72 degC
213-215  Watts (measured by KillAWatt)

Same 5870 @ 970 core 300 mem
Phoenix 1.46 with new Kernel  ~420 Mh/s (-k phatk DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
75 degC
227-230 Watts (measured by KillAWatt)

Can anyone else verify?

I can verify this. My power usage went up too. From 412 to 421 on one rig to 440~

Now the question is whether the extra hash power justifies the extra power consumption..math anyone?

Ok, According the deepbit's reward calculator, 405MH/s gives .097 and 420MH/s gives 0.10 BTC per hour
Switching gains you .003BTC per hour or at the current exchange rate of $7 per: $0.021/h
the difference in power is 15 Watts (.015 kW)
The price of electricity is about $0.10/kWh (http://www.eia.doe.gov/cneaf/electricity/epm/table5_6_b.html)
The cost of electricity from the increase is  .015 kW * $0.10/kWh = .0015$/h

So... the increase in profits is 14 times higher than the increase in cost.  Unless the price drops to .5 or the dificulty goes up 14-fold, pretty much any overclocking / optimizing is worth it.

Edit: Also, the increase in air conditioning will likely double the cost of electricity, but the cost is still is negligible compared to the increase in profit.

Hope this helps Smiley

-Phateus
legendary
Activity: 3080
Merit: 1080
May 15, 2011, 07:26:06 PM
#52
Nice little bump up from 405 MH/s to 420 Mh/s on my 5870 but power usage went up 15W as well.

~15Mh/s gain with ~15W more power?  Undecided

5870 @ 970 core 300 mem
Phoenix 1.46 ~405 Hh/s  (-k poclbm DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
72 degC
213-215  Watts (measured by KillAWatt)

Same 5870 @ 970 core 300 mem
Phoenix 1.46 with new Kernel  ~420 Mh/s (-k phatk DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
75 degC
227-230 Watts (measured by KillAWatt)

Can anyone else verify?

I can verify this. My power usage went up too. From 412 to 421 on one rig to 440~

Now the question is whether the extra hash power justifies the extra power consumption..math anyone?
legendary
Activity: 1855
Merit: 1016
May 15, 2011, 02:17:00 PM
#51
Holy.......
I am using this word second time.
1st time when my hash jumped from 275 to 300 Mhash/s
& now to 313 Mhash/s after using phatk.

phoenix.exe -u http://[email protected]:8332/ DEVICE=0 VECTORS BFI_INT AGGRESSION=10 -k phatk
HD 6870 With core clk 1038, mem clk 360, fan 100%, temp 75-77C
windows 7 32 bit.
hero member
Activity: 499
Merit: 500
May 15, 2011, 02:09:08 PM
#50
Nice little bump up from 405 MH/s to 420 Mh/s on my 5870 but power usage went up 15W as well.

~15Mh/s gain with ~15W more power?  Undecided

5870 @ 970 core 300 mem
Phoenix 1.46 ~405 Hh/s  (-k poclbm DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
72 degC
213-215  Watts (measured by KillAWatt)

Same 5870 @ 970 core 300 mem
Phoenix 1.46 with new Kernel  ~420 Mh/s (-k phatk DEVICE=0 VECTORS BFI_INT AGGRESSION=11 WORKSIZE=256)
75 degC
227-230 Watts (measured by KillAWatt)

Can anyone else verify?
legendary
Activity: 3080
Merit: 1080
May 15, 2011, 11:55:07 AM
#49
This modified kernel kicks ass. Went from 350 to 371 with stock 5970 (850 Mhz - it's the slightly overclocked 4 gb vram one) speeds and aggression level 7. With aggression level 12 performance bumps up to 377. All the memory is at 300 Mhz.

Very nice! Thank you so much OP!!!! Cheesy
hero member
Activity: 575
Merit: 500
The North Remembers
May 15, 2011, 02:50:44 AM
#48
On my OC'd 5870 I went from 410 to 430. awwww yeeeeeaaaaah!
newbie
Activity: 26
Merit: 0
May 14, 2011, 08:54:08 PM
#47
910Mhz/300Mhz on a HD5850, jumped from 330~ to 345-350~Mhash/s. Nice job.
sr. member
Activity: 254
Merit: 250
May 14, 2011, 08:29:10 AM
#46
I get the following error message when I try to run phatk:

Code:
  File "./phoenix.py", line 123, in
    miner.start(options)
  File "/home/elrock/phoenix-1.47/Miner.py", line 74, in start
    self.kernel = self.options.makeKernel(KernelInterface(self))
  File "./phoenix.py", line 112, in makeKernel
    self.kernel = kernelModule.MiningKernel(requester)
  File "kernels/phatk/__init__.py", line 126, in __init__
    platforms = cl.get_platforms()
pyopencl.LogicError: clGetPlatformIDs failed: invalid/unknown error code

I think this may have something to do with the fact that my GPU is DEVICE 1 and not 0.  (For some reason OpenCL recognizes my CPU as DEVICE 0.)  Huh
i've had the same problem when switching from catalyst 11.1 to 11.4, before it was recognized as device 1 and now 0.
newbie
Activity: 41
Merit: 0
May 14, 2011, 08:21:12 AM
#45
I get the following error message when I try to run phatk:

Code:
  File "./phoenix.py", line 123, in
    miner.start(options)
  File "/home/elrock/phoenix-1.47/Miner.py", line 74, in start
    self.kernel = self.options.makeKernel(KernelInterface(self))
  File "./phoenix.py", line 112, in makeKernel
    self.kernel = kernelModule.MiningKernel(requester)
  File "kernels/phatk/__init__.py", line 126, in __init__
    platforms = cl.get_platforms()
pyopencl.LogicError: clGetPlatformIDs failed: invalid/unknown error code

I think this may have something to do with the fact that my GPU is DEVICE 1 and not 0.  (For some reason OpenCL recognizes my CPU as DEVICE 0.)  Huh
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