Jouni wrote: ↑Fri Mar 15, 2024 4:39 pm Initial position - depth 70 Stockfish 130118 64 POPCNT
Hardware:
Intel i3-2130 @ 3.4 GHz 2 threads
Code: Select all
depth time ms DD:hh:mm:ss nodes bf cp nps hf ------------------------------------------------------------------------------------- 20 2.961 00:00:00:03 7.809.122 1.46 32 2.637.325 24 21 4.007 00:00:00:04 10.399.247 1.33 30 2.595.270 34 22 8.118 00:00:00:08 20.773.844 2.00 26 2.558.985 73 23 11.769 00:00:00:12 29.580.482 1.42 22 2.513.423 110 24 18.206 00:00:00:18 45.477.435 1.54 32 2.497.936 155 25 21.969 00:00:00:22 55.381.467 1.22 38 2.520.891 203 26 27.229 00:00:00:27 69.549.803 1.26 28 2.554.254 249 27 34.406 00:00:00:34 88.341.585 1.27 32 2.567.621 312 28 44.319 00:00:00:44 114.308.137 1.29 22 2.579.212 401 29 51.010 00:00:00:51 131.493.550 1.15 22 2.577.799 454 30 67.166 00:00:01:07 172.669.782 1.31 25 2.570.791 550 31 95.972 00:00:01:36 245.796.848 1.42 27 2.561.130 706 32 121.732 00:00:02:02 312.584.774 1.27 30 2.567.811 831 33 195.528 00:00:03:16 504.220.842 1.61 25 2.578.765 947 34 270.284 00:00:04:30 701.974.776 1.39 10 2.597.174 994 35 542.696 00:00:09:03 1.423.172.418 2.03 8 2.622.411 999 36 852.233 00:00:14:12 2.248.334.831 1.58 7 2.638.169 999 37 1.025.618 00:00:17:06 2.704.202.685 1.20 9 2.636.656 999 38 1.269.916 00:00:21:10 3.352.076.991 1.24 6 2.639.605 999 39 1.821.664 00:00:30:22 4.843.938.257 1.45 9 2.659.073 999 40 2.422.055 00:00:40:22 6.432.149.569 1.33 13 2.655.657 999 41 2.687.778 00:00:44:48 7.139.720.058 1.11 25 2.656.365 999 42 3.379.961 00:00:56:20 8.999.060.694 1.26 8 2.662.474 999 43 6.255.902 00:01:44:16 16.685.266.411 1.85 19 2.667.124 999 44 11.966.099 00:03:19:26 31.935.614.594 1.91 18 2.668.840 999 45 13.996.185 00:03:53:16 37.305.243.123 1.17 18 2.665.386 999 46 18.986.926 00:05:16:27 50.476.904.815 1.35 15 2.658.508 999 47 29.555.211 00:08:12:35 78.749.855.020 1.56 16 2.664.499 999 48 32.379.375 00:08:59:39 86.258.487.995 1.10 22 2.663.994 999 49 38.171.214 00:10:36:11 102.087.328.823 1.18 18 2.674.458 999 50 59.954.177 00:16:39:14 162.433.347.175 1.59 13 2.709.291 999 51 68.229.137 00:18:57:09 184.638.998.399 1.14 13 2.706.160 999 52 147.657.664 01:17:00:58 401.226.073.057 2.17 24 2.717.272 999 53 176.568.889 02:01:02:49 481.184.993.983 1.20 9 2.725.196 999 54 183.776.030 02:03:02:56 500.828.026.388 1.04 12 2.725.208 999 55 612.348.337 07:02:05:48 1.683.626.096.810 3.36 8 2.749.458 999 56 691.324.582 08:00:02:05 1.902.007.602.700 1.13 8 2.751.251 999 57 942.416.277 10:21:46:56 2.600.369.228.395 1.37 12 2.759.257 999 58 1.108.243.196 12:19:50:43 3.065.487.180.680 1.18 14 2.766.078 999 59 1.133.362.443 13:02:49:22 3.136.008.925.222 1.02 15 2.766.995 999 60 1.539.239.134 17:19:33:59 4.277.389.258.149 1.36 8 2.778.898 999 61 2.017.290.614 23:08:21:31 5.614.261.530.698 1.31 12 2.783.070 999 62 2.587.485.027 29:22:44:45 7.198.730.538.139 1.28 9 2.782.134 999 63 2.785.825.750 32:05:50:26 7.749.378.651.635 1.08 15 2.781.717 999 64 3.639.352.274 42:02:55:52 10.149.662.885.237 1.31 8 2.788.865 999 65 6.125.138.474 70:21:25:38 17.288.598.093.977 1.70 8 2.822.564 999 66 6.510.453.751 75:08:27:34 18.387.727.244.730 1.08 8 2.824.339 999 67 7.462.845.087 86:09:00:45 21.068.240.925.795 1.15 16 2.823.084 999 68 9.549.220.198 109:12:33:40 27.111.553.587.762 1.29 11 2.839.138 999 69 12.613.582.864 144:23:46:23 35.925.549.032.091 1.33 8 2.848.164 999 70 14.474.647.554 165:12:44:08 41.192.897.168.184 1.15 8 2.845.865 999
Highest Depth search in modern computers?
Moderator: Ras
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Leo
- Posts: 1104
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- Full name: Leo Anger
Re: Highest Depth search in modern computers?
Advanced Micro Devices fan.
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Leo
- Posts: 1104
- Joined: Fri Sep 16, 2016 6:55 pm
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- Full name: Leo Anger
Re: Highest Depth search in modern computers?
Leo wrote: ↑Sat Mar 16, 2024 6:28 pmThanks. If I run my computer like that the wire melts as it enters the circuit breakerJouni wrote: ↑Fri Mar 15, 2024 4:39 pm Initial position - depth 70 Stockfish 130118 64 POPCNT
Hardware:
Intel i3-2130 @ 3.4 GHz 2 threads
Code: Select all
depth time ms DD:hh:mm:ss nodes bf cp nps hf ------------------------------------------------------------------------------------- 20 2.961 00:00:00:03 7.809.122 1.46 32 2.637.325 24 21 4.007 00:00:00:04 10.399.247 1.33 30 2.595.270 34 22 8.118 00:00:00:08 20.773.844 2.00 26 2.558.985 73 23 11.769 00:00:00:12 29.580.482 1.42 22 2.513.423 110 24 18.206 00:00:00:18 45.477.435 1.54 32 2.497.936 155 25 21.969 00:00:00:22 55.381.467 1.22 38 2.520.891 203 26 27.229 00:00:00:27 69.549.803 1.26 28 2.554.254 249 27 34.406 00:00:00:34 88.341.585 1.27 32 2.567.621 312 28 44.319 00:00:00:44 114.308.137 1.29 22 2.579.212 401 29 51.010 00:00:00:51 131.493.550 1.15 22 2.577.799 454 30 67.166 00:00:01:07 172.669.782 1.31 25 2.570.791 550 31 95.972 00:00:01:36 245.796.848 1.42 27 2.561.130 706 32 121.732 00:00:02:02 312.584.774 1.27 30 2.567.811 831 33 195.528 00:00:03:16 504.220.842 1.61 25 2.578.765 947 34 270.284 00:00:04:30 701.974.776 1.39 10 2.597.174 994 35 542.696 00:00:09:03 1.423.172.418 2.03 8 2.622.411 999 36 852.233 00:00:14:12 2.248.334.831 1.58 7 2.638.169 999 37 1.025.618 00:00:17:06 2.704.202.685 1.20 9 2.636.656 999 38 1.269.916 00:00:21:10 3.352.076.991 1.24 6 2.639.605 999 39 1.821.664 00:00:30:22 4.843.938.257 1.45 9 2.659.073 999 40 2.422.055 00:00:40:22 6.432.149.569 1.33 13 2.655.657 999 41 2.687.778 00:00:44:48 7.139.720.058 1.11 25 2.656.365 999 42 3.379.961 00:00:56:20 8.999.060.694 1.26 8 2.662.474 999 43 6.255.902 00:01:44:16 16.685.266.411 1.85 19 2.667.124 999 44 11.966.099 00:03:19:26 31.935.614.594 1.91 18 2.668.840 999 45 13.996.185 00:03:53:16 37.305.243.123 1.17 18 2.665.386 999 46 18.986.926 00:05:16:27 50.476.904.815 1.35 15 2.658.508 999 47 29.555.211 00:08:12:35 78.749.855.020 1.56 16 2.664.499 999 48 32.379.375 00:08:59:39 86.258.487.995 1.10 22 2.663.994 999 49 38.171.214 00:10:36:11 102.087.328.823 1.18 18 2.674.458 999 50 59.954.177 00:16:39:14 162.433.347.175 1.59 13 2.709.291 999 51 68.229.137 00:18:57:09 184.638.998.399 1.14 13 2.706.160 999 52 147.657.664 01:17:00:58 401.226.073.057 2.17 24 2.717.272 999 53 176.568.889 02:01:02:49 481.184.993.983 1.20 9 2.725.196 999 54 183.776.030 02:03:02:56 500.828.026.388 1.04 12 2.725.208 999 55 612.348.337 07:02:05:48 1.683.626.096.810 3.36 8 2.749.458 999 56 691.324.582 08:00:02:05 1.902.007.602.700 1.13 8 2.751.251 999 57 942.416.277 10:21:46:56 2.600.369.228.395 1.37 12 2.759.257 999 58 1.108.243.196 12:19:50:43 3.065.487.180.680 1.18 14 2.766.078 999 59 1.133.362.443 13:02:49:22 3.136.008.925.222 1.02 15 2.766.995 999 60 1.539.239.134 17:19:33:59 4.277.389.258.149 1.36 8 2.778.898 999 61 2.017.290.614 23:08:21:31 5.614.261.530.698 1.31 12 2.783.070 999 62 2.587.485.027 29:22:44:45 7.198.730.538.139 1.28 9 2.782.134 999 63 2.785.825.750 32:05:50:26 7.749.378.651.635 1.08 15 2.781.717 999 64 3.639.352.274 42:02:55:52 10.149.662.885.237 1.31 8 2.788.865 999 65 6.125.138.474 70:21:25:38 17.288.598.093.977 1.70 8 2.822.564 999 66 6.510.453.751 75:08:27:34 18.387.727.244.730 1.08 8 2.824.339 999 67 7.462.845.087 86:09:00:45 21.068.240.925.795 1.15 16 2.823.084 999 68 9.549.220.198 109:12:33:40 27.111.553.587.762 1.29 11 2.839.138 999 69 12.613.582.864 144:23:46:23 35.925.549.032.091 1.33 8 2.848.164 999 70 14.474.647.554 165:12:44:08 41.192.897.168.184 1.15 8 2.845.865 999
Advanced Micro Devices fan.
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towforce
- Posts: 12514
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- Full name: Graham Laight
Re: Highest Depth search in modern computers?
hgm wrote: ↑Fri Mar 15, 2024 10:00 pm Branching ratio of alpha-beta for Chess should be about 6 (the square-root of the average number of moves) = 10^0.78. A day is about 1e5 sec, so at 1e18 nps that would be 1e23 nodes. That would give a depth of 23/0.78 = 29.5 ply.
That doesn't take account of the speedup by a hash table. But it also doesn't take account of the fact that for the results to have any meaning you would need to do a Quiescence search, which drives up the number of leaves by a factor 7 or so. These effects might cancel each other.
Very good answer - thank you!
In Europe, and especially in the USA, I think that most "well off" people could afford a computer system that would have been in the Top500 supercomputer list (link) 10-15 years ago (obviously it would be more sensible to buy a house and a car, as most people choose to do). Alternatively, one can rent high powered computer systems on Google Compute - but if you use them all the time, this will also be expensive for most people.
Human chess is partly about tactics and strategy, but mostly about memory