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Author Topic: Phoenix Miner - slow?  (Read 1405 times)
antares
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July 02, 2011, 09:44:22 PM
 #1

Hi people. I just bought some 6770 some time ago, and I've been using it for mining since about three weeks. I was using ubuntu 11.04(since I cant get everything up with debian), Catalyst 11.5 and poclbm. Ok so with stock clocks, I get 170MH/s out of pocl. Two weeks ago I overclocked the card from 800 to 850, it was producing about 182MH/sec. Yesterday, since it was all running stable, I pushed the card to the max clock, that aticonfig supports. Everything runs finde, Hashrate is about 195MH/sec.

So far, so good. I then wanted to try the phoenix miner, using the following(got it from the wiki) settings:
-k phatk PLATFORM=0 DEVICE=0 VECTORS BFI_INT WORKSIZE=256 FASTLOOP=false AGGRESSION=13

This gives me 165MH/sec which is even lower than the 170MH/sec the card does on poclbm without overclocking.

Can anyone tell me what I just did wrong?
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aceman1011
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July 02, 2011, 10:43:42 PM
 #2

Try setting platform=1. Phoenix isn't the fastest miner necessarily...

Rent my 800 + mh/s rig. PM me!
mf
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July 03, 2011, 10:55:18 AM
 #3

For my 5770, phoenix is the only one that reaches speeds of 218.00 MH/s. All the others lag behind.

I am currently using the svn version, and launching it as follows:

LD_LIBRARY_PATH=/opt/AMD-APP-SDK-v2.4-lnx64/lib/x86_64/ python phoenix.py -u http://user:pass@host:port/ -k phatk DEVICE=0 BFI_INT VECTORS FASTLOOP=false AGGRESSION=13 WORKSIZE=128 -v

I suggest you play with:
- whether sdk 2.1 or 2.4 is best (if you use phatk, you need 2.4)
- whether VECTORS makes a change for you or not
- WORKSIZE depending on the card either 128 or 256; despite what the wiki says, I get better speeds with 128.
- the speed of your memory -- despite common claims, for me 960 was the best rather than 600 (although I could not go lower than 600)

Not too shabby:

$ aticonfig --odgt --adapter=all
Adapter 0 - ATI Radeon HD 5700 Series
            Sensor 0: Temperature - 73.00 C
$ aticonfig --odgc --adapter=all
Adapter 0 - ATI Radeon HD 5700 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    960           960
             Current Peak :    960           960
  Configurable Peak Range : [600-960]     [600-1445]
                 GPU load :    99%


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aceman1011
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July 03, 2011, 08:02:46 PM
 #4

Mf, you are wrong. I use SDK 2.1 with phatk and it works fine on my 6870 and 5830s.

Rent my 800 + mh/s rig. PM me!
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