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Rollout Speed

Posted By: neilkaz
Date: Sunday, 3 July 2011, at 8:06 p.m.

In Response To: Rollout Speed (KenB)

My Laptop with XG2. 2.0 GHz i7-2630QM Sandy Bridge chip calibrates at about 3.4 Million using XG2. When doing rollouts it typically is turboing at over 2.3 Ghz.

An even better method is to just see how long equivilent or similar RO's take.

I am rolling out some of the interesting opening rolls at scores in short matches and these will appear in XG's DB.

Typically it takes about 2 days and 10 hours to do 46k 4 ply for 2 plays using my OC'd hexacore. But 2 days 20 hours using my very OC'd new Sandy Bridge quad core even though both cal at about 6.6 mil.

As we see from the below RO with my LT it is almost twice as slow.




White is Player 2

score: 1
pip: 167
5 point match
pip: 167
score: 0

Blue is Player 1
XGID=-b----E-C---eE---c-e----B-:0:0:1:23:0:1:0:5:10
Blue to play 23

1.Rollout113/11 13/10eq: -0.0408
Player:
Opponent:		49.81% (G:15.44% B:0.85%)
50.19% (G:14.77% B:1.52%)		Conf.: ±0.0024 (-0.0433...-0.0384) - [53.8%]
Duration: 2 days 05 hours 58 minutes
2.Rollout124/21 13/11eq: -0.0410 (-0.0002)
Player:
Opponent:		50.24% (G:13.94% B:0.77%)
49.76% (G:13.98% B:1.12%)		Conf.: ±0.0024 (-0.0434...-0.0386) - [46.2%]
Duration: 2 days 11 hours 24 minutes
1 46656 Games rolled with Variance Reduction.
Moves and cube decisions: 4-ply

eXtreme Gammon Version: 2.00.170.pre-release, MET: Kazaross XG2

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