plantucha:
it looks like more pools = more rejections
I don't have that problem here. I run 4 different workers on each GPU, with 3 GPUs. My rejections are almost always under 1%. I have seen other installs over SSH which mimic this behavior, and have no extra rejection problems. Additionally, I see no performance hit running multiple instances eaither. (perhaps it related to an outdated phoenix, what phoenix revision are you running?)
dedicated rig 3x GPU HD 6790 @ 950/1050 fans 100%
uninstalled and freshly installed
phoenix r107 (no patching)
smartcoin r297
smartcoin Management System r297 Mon Jul 4 16:09:52 EDT 2011
--------------------------------------------------------------------------------
Host: localhost
GPU[0]: Temp: 65.00 load: 99%
GPU[1]: Temp: 74.00 load: 99%
GPU[2]: Temp: 68.00 load: 99%
CPU Load : 0.84%
Profile: Automatic
--------Bitcoin.cz (slush)--------
GPU[0]: [56.25 Mhash/sec] [15 Accepted] [1 Rejected] [RPC]
GPU[1]: [54.47 Mhash/sec] [20 Accepted] [0 Rejected] [RPC]
GPU[2]: [54.47 Mhash/sec] [16 Accepted] [1 Rejected] [RPC]
Total : [165.19 Mhash/sec] [51 Accepted] [2 Rejected]
--------BTCGuild--------
GPU[0]: [56.25 Mhash/sec] [13 Accepted] [2 Rejected] [RPC (+LP)]
GPU[1]: [54.47 Mhash/sec] [16 Accepted] [0 Rejected] [RPC (+LP)]
GPU[2]: [54.47 Mhash/sec] [12 Accepted] [0 Rejected] [RPC (+LP)]
Total : [165.19 Mhash/sec] [41 Accepted] [2 Rejected]
--------Bitcoins.lc--------
GPU[0]: [54.42 Mhash/sec] [9 Accepted] [6 Rejected] [RPC (+LP)]
GPU[1]: [54.47 Mhash/sec] [13 Accepted] [7 Rejected] [RPC (+LP)]
GPU[2]: [54.47 Mhash/sec] [12 Accepted] [5 Rejected] [RPC (+LP)]
Total : [163.36 Mhash/sec] [34 Accepted] [18 Rejected]
--------MineCo--------
GPU[0]: [54.44 Mhash/sec] [12 Accepted] [4 Rejected] [RPC (+LP)]
GPU[1]: [54.47 Mhash/sec] [7 Accepted] [4 Rejected] [RPC (+LP)]
GPU[2]: [56.29 Mhash/sec] [12 Accepted] [3 Rejected] [RPC (+LP)]
Total : [165.20 MHash/sec] [31 Accepted] [11 Rejected]
Grand Total: [658.94 Mhash/sec] [157 Accepted] [33 Rejected] [21.019% Rejected]
looks like workers entered first having more rejections than last entered workers.
bottom list first worker, top is last worker entered.
also
if I remove worker (by editing use in default profile - n) computing power will not spread between rest of workers,
I have to kill smartcoin and start it again.