Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Zappa Hardware Upgrade

Author: Mike Byrne

Date: 13:13:39 12/23/05

Go up one level in this thread


On December 23, 2005 at 13:26:42, Zappa wrote:

>So when I went to UIUC as a newly minted World Champion, they were interested
>and after some negotiations I managed to procure some time on NCSA's Cobalt
>supercomputer, an SGI Altix:
>
>http://www.ncsa.uiuc.edu/UserInfo/Resources/Hardware/SGIAltix/TechSummary/
>
>At Paderborn Zappa will run on 128 CPUs as a bit of a warmup; at Turino I hope
>to use 512.  I haven't really had enough time to seriously optimize Zappa for
>this machine, and I have been somewhat disappointed by the Itanium2 CPU, but the
>results are still reasonably impressive.  For example:
>
>r1b2r2/p1q1ppk1/6p1/3p3p/7P/5P2/PPPQ2P1/2K1RB1R b - - 0 9

FEN: [d]r1b2r2/p1q1ppk1/6p1/3p3p/7P/5P2/PPPQ2P1/2K1RB1R b - - 0 1

Rybka 1.01 Preview 2:
   3	00:00	       1.889	1.934.336	+0.08	1. ... Bf5
   4	00:00	       4.465	268.950	+0.01	1. ... Bf5
   5	00:00	       8.776	272.321	-0.01	1. ... Bf5 2.Bd3
   6	00:00	      21.099	227.425	-0.01	1. ... Bf5 2.Bd3 Bxd3 3.Qxd3 Rac8
   7	00:00	      47.760	207.229	+0.06	1. ... Bf5 2.Bd3 Bxd3 3.Qxd3 Rfc8 4.Kb1
   8	00:00	     115.930	210.482	-0.01	1. ... Bf5 2.Bd3 Bxd3 3.Qxd3 Rac8 4.g4
hxg4
   9	00:01	     247.485	207.725	-0.01	1. ... Bf5 2.Bd3 Bxd3 3.Qxd3 Rac8 4.g4
hxg4 5.fxg4 e6
  10	00:03	     663.943	210.098	-0.35	1. ... Bf5 2.g4 hxg4 3.fxg4 Be4 4.Bg2 Rfd8
5.h5
  10	00:04	     944.677	207.674	-0.15	1. ... Qc5 2.Re5 Be6 3.Bd3 Rfb8 4.Rg5 Rb4
  10	00:08	   1.652.747	203.195	 0.00	1. ... Rb8 2.Qd4+ f6 3.Bd3 e6 4.c3 Bd7
5.g4
  11	00:10	   2.146.870	205.074	+0.02	1. ... Rb8 2.Qd4+ f6 3.Qxd5 Bf5 4.Bd3 e6
5.Qc4 Qb7
  12	00:24	   4.838.751	206.169	-0.25	1. ... Rb8 2.g4 hxg4 3.h5 gxf3 4.hxg6 fxg6
5.Qh6+ Kf7 6.Qg5 Ke8
  13	00:56	  11.195.195	204.478	-0.19	1. ... Rb8 2.g4 hxg4 3.h5 gxf3 4.hxg6 fxg6
5.Qh6+ Kf7 6.Qg5 Ke8 7.Rh7





>
>1... Ra8-b8 2. g2-g4 h5xg4 3. h4-h5 Qc7-b6 4. b2-b3 Qb6-f6 5. Kc1-b1 Rf8-h8 6.
>h5-h6 Kg7-g8 7. f3xg4 Bc8xg4 8. h6-h7 Kg8-f8 9. Qd2-h6 Kf8-e8 10. Bf1-d3 e7-e6
> = (-0.49)      Depth: 17/45    00:03:37.11     5532448kN (25481 KN/s, 3558608
>splits, 294631 aborts)
>
>r1b2rk1/pp3ppp/1nn1p3/q2pP3/2pP1P2/P1P2NPB/2PB3P/R2QK2R w KQ - 0 8

FEN: [d]r1b2rk1/pp3ppp/1nn1p3/q2pP3/2pP1P2/P1P2NPB/2PB3P/R2QK2R w KQ - 0 1

Rybka 1.01 Preview 2:
   3	00:00	         317	324.608	+0.07	1.0-0
   4	00:00	         873	893.952	+0.08	1.0-0
   5	00:00	       4.741	303.424	+0.07	1.0-0 Bd7
   6	00:00	       6.431	205.792	+0.12	1.0-0 Bd7 2.Qe2
   7	00:00	      12.576	163.010	+0.09	1.0-0 Bd7 2.Qe2 Na4
   8	00:00	      32.900	179.200	+0.13	1.0-0 Bd7 2.Qe2 h6 3.Bg4
   9	00:00	      58.108	172.972	+0.09	1.0-0 Bd7 2.Qe2 h6 3.Bg4 Na4
  10	00:01	     155.531	161.689	+0.16	1.0-0 Bd7 2.Qe2 h6 3.Bg4 Rad8 4.Kg2
  11	00:01	     221.135	164.565	+0.12	1.0-0 Bd7 2.Qe2 h6 3.Bg4 Rad8 4.Kg2 Na4
  12	00:07	   1.157.882	174.826	+0.16	1.0-0 Na4 2.Qe2 Bd7 3.Qe3 h6 4.Bg4 Rad8
5.Kg2
  13	00:18	   3.203.950	177.036	+0.18	1.0-0 Na4 2.Bg4 Bd7 3.Nh4 a6 4.Rb1 b5
5.Qe1 g6
  14	00:51	   8.929.983	178.314	+0.19	1.0-0 Na4 2.Qe1 Qc7 3.Qe3 b6 4.Nh4 g6
5.Bg2 Qe7 6.Rfb1


>
>1. Ke1-g1 Nc6-e7 2. Nf3-h4 Qa5-a4 3. Qd1-b1 Bc8-d7 4. Qb1-b2 Qa4-c6 5. Ra1-b1
>Qc6-c7 6. Nh4-g2 Ra8-c8 7. Kg1-h1 Ne7-f5 8. Ng2-e3 Nf5xe3 9. Bd2xe3 Rf8-d8 10.
>Rb1-a1
> = (0.15)       Depth: 20/46    00:04:33.59     7300957kN (26686 KN/s, 6497504
>splits, 503423 aborts)
>
>Single CPU Zappa on the I2 there gets about 300 knps, so that is an nps speedup
>of 80-85.  I'll probably get a bit less in Paderborn, as this is essentially the
>World Champs version of Zappa, and I've been busy de-optimizing it since :)
>
>This is really only 1-2 ply deeper than my quad, but wait until Turino when I've
>had some time to optimize things a bit . . .
>
>anthony



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.