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Improve multiPV mode. #2163

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joergoster
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Skip all moves during the Non-PV (zero-window) search which will be searched
as PV moves later anyways.
Make sure the moves will be reported to the GUI despite they're not being searched.
Some GUIs may get confused otherwise, and it would unnecessarily complicate the code.

Tested with MultiPV=4
STC
http://tests.stockfishchess.org/tests/view/5ce7137c0ebc5925cf070d69
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 8233 W: 3708 L: 3424 D: 1101

LTC
http://tests.stockfishchess.org/tests/view/5ce798d60ebc5925cf071d17
LLR: 2.95 (-2.94,2.94) [0.00,3.50]
Total: 7369 W: 3197 L: 2911 D: 1261

No functional change. (in single PV mode)

Skip all moves during the non-pv search which will be searched
as PV move later anyways.
Make sure the move will be reported to the GUI despite it is not being searched.
Some GUIs may get confused otherwise, and it would unnecessarily complicate the code.

No functional change. (in single mode)
MichaelB7 added a commit to MichaelB7/Stockfish that referenced this pull request May 29, 2019
MichaelB7 added a commit to MichaelB7/Stockfish that referenced this pull request May 29, 2019
MichaelB7 added a commit to MichaelB7/Stockfish that referenced this pull request May 29, 2019
@snicolet snicolet closed this in a8de07c Jun 27, 2019
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Merged via a8de07c, thanks!

mstembera pushed a commit to mstembera/Stockfish that referenced this pull request Jun 27, 2019
Skip all moves during the Non-PV (zero-window) search which will be
searched as PV moves later anyways. We also wake sure the moves will
be reported to the GUI despite they're not being searched — some GUIs
may get confused otherwise, and it would unnecessarily complicate the
code.

Tested with MultiPV=4
STC
http://tests.stockfishchess.org/tests/view/5ce7137c0ebc5925cf070d69
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 8233 W: 3708 L: 3424 D: 1101

LTC
http://tests.stockfishchess.org/tests/view/5ce798d60ebc5925cf071d17
LLR: 2.95 (-2.94,2.94) [0.00,3.50]
Total: 7369 W: 3197 L: 2911 D: 1261

Closes official-stockfish#2163

No functional change. (in single PV mode)
mstembera pushed a commit to mstembera/Stockfish that referenced this pull request Jul 31, 2019
Skip all moves during the Non-PV (zero-window) search which will be
searched as PV moves later anyways. We also wake sure the moves will
be reported to the GUI despite they're not being searched — some GUIs
may get confused otherwise, and it would unnecessarily complicate the
code.

Tested with MultiPV=4
STC
http://tests.stockfishchess.org/tests/view/5ce7137c0ebc5925cf070d69
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 8233 W: 3708 L: 3424 D: 1101

LTC
http://tests.stockfishchess.org/tests/view/5ce798d60ebc5925cf071d17
LLR: 2.95 (-2.94,2.94) [0.00,3.50]
Total: 7369 W: 3197 L: 2911 D: 1261

Closes official-stockfish#2163

No functional change. (in single PV mode)
mstembera pushed a commit to mstembera/Stockfish that referenced this pull request Aug 1, 2019
Skip all moves during the Non-PV (zero-window) search which will be
searched as PV moves later anyways. We also wake sure the moves will
be reported to the GUI despite they're not being searched — some GUIs
may get confused otherwise, and it would unnecessarily complicate the
code.

Tested with MultiPV=4
STC
http://tests.stockfishchess.org/tests/view/5ce7137c0ebc5925cf070d69
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 8233 W: 3708 L: 3424 D: 1101

LTC
http://tests.stockfishchess.org/tests/view/5ce798d60ebc5925cf071d17
LLR: 2.95 (-2.94,2.94) [0.00,3.50]
Total: 7369 W: 3197 L: 2911 D: 1261

Closes official-stockfish#2163

No functional change. (in single PV mode)
mstembera pushed a commit to mstembera/Stockfish that referenced this pull request Aug 29, 2019
Skip all moves during the Non-PV (zero-window) search which will be
searched as PV moves later anyways. We also wake sure the moves will
be reported to the GUI despite they're not being searched — some GUIs
may get confused otherwise, and it would unnecessarily complicate the
code.

Tested with MultiPV=4
STC
http://tests.stockfishchess.org/tests/view/5ce7137c0ebc5925cf070d69
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 8233 W: 3708 L: 3424 D: 1101

LTC
http://tests.stockfishchess.org/tests/view/5ce798d60ebc5925cf071d17
LLR: 2.95 (-2.94,2.94) [0.00,3.50]
Total: 7369 W: 3197 L: 2911 D: 1261

Closes official-stockfish#2163

No functional change. (in single PV mode)
pb00068 pushed a commit to pb00068/Stockfish that referenced this pull request Sep 10, 2019
Skip all moves during the Non-PV (zero-window) search which will be
searched as PV moves later anyways. We also wake sure the moves will
be reported to the GUI despite they're not being searched — some GUIs
may get confused otherwise, and it would unnecessarily complicate the
code.

Tested with MultiPV=4
STC
http://tests.stockfishchess.org/tests/view/5ce7137c0ebc5925cf070d69
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 8233 W: 3708 L: 3424 D: 1101

LTC
http://tests.stockfishchess.org/tests/view/5ce798d60ebc5925cf071d17
LLR: 2.95 (-2.94,2.94) [0.00,3.50]
Total: 7369 W: 3197 L: 2911 D: 1261

Closes official-stockfish#2163

No functional change. (in single PV mode)
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3 participants