Clear policy for terminal loss. #1285
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mooskagh
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May 10, 2020
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1k nodes, 2000 games of master vs this PR, chad 6 ply book. Final scoreline is within error bars, slightly positive. 2000 of 2000 games finished. |
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Given the positive test (but within errorbars) and the extremely low cost and that this should have some additional positive effects to do with quality of MLH target values near mate outside of TB rescoring potential. |
AlexisOlson
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May 10, 2020
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* Time management refactoring (LeelaChessZero#1195) * Appended files. * Compiles. * Compiles again. * Make smart pruning use smoothed nps. * Seems to be fully implemented. * Mistype. * One more bug. * Found discrepancy with documentaiton. * Bugfixes. * Don't smooth nps during the first move. * Too large default for timeuse decay. * Bugfix. * Fix build. * Relax defaults a bit. Add fixed to logging. * Remove "smooth" to "smooth-experimental" for now. * MLH verbose stats - Issue 1200 (LeelaChessZero#1230) * Add M effect logic to output section * Fix missing prefixes and semicolons * Some fixes. * Slight format improvement? Co-authored-by: Tilps <Tilps@users.noreply.github.com> * Start TempDecay only after a given number of moves (LeelaChessZero#1212) * Added TempDecayStartMove for starting temp decay only after a given number of moves. This allows keeping initial game up for a few moves and still use decay. * Doesn't allow temperature to fall below endgame temp during temp decay. Still allows initial temp to be below endgame temp. * Doesn't allow temperature to fall below endgame temp during temp decay. Still allows initial temp to be below endgame temp. * Hide temp options * renamed TempDecayStartMove to TempDecayDelayMoves Co-authored-by: Alexis Olson <AlexisOlson@gmail.com> * Changelog for 0.25.0-rc2. (LeelaChessZero#1233) * Changelog for 0.25.0-rc2. * Add one more PR to the changelog. * Cuda winograd (LeelaChessZero#1228) * custom winograd convolution for cuda backends * custom winograd fixes - fix a bug to make it work for non-SE networks - enable by default only with fp32. * address review comments * remove random line in comment * remove unused constants - W,H are hardcoded to 8 - because there are assumptions in the code based on that. No point in defining constants. * cuda winograd fixes (LeelaChessZero#1238) * cuda winograd fixes - don't typecast directly to half datatype in CPU side code as older CUDA runtime doesn't support that. - don't use gemmEx version on GPUs older than Maxwell generation (not supported). - modify the check to enable custom_winograd setting. It should be faster in most cases - except presently on RTX GPUs when using fp16. * Allow most parts of fen to be optional. (LeelaChessZero#1234) Default to white to move, no castling, no en passant, 0 rule50ply, 1 total move. Also convert other string to std::string and removing using. * Fix UpdateNps to actually smooth the nps and correctly handle time_since_movestart_ms == 0 (LeelaChessZero#1243) * Update changelog for 0.25.0 final release. (LeelaChessZero#1244) * Always report at least 1 depth. (LeelaChessZero#1247) * Fix un-intended regression for GTX GPUs (LeelaChessZero#1246) * memory optimization for cudnn custom_winograd (LeelaChessZero#1250) * memory optimization for cudnn custom_winograd - don't save untransformed weights - print warning message when low memory is detected. * address review comments * fix warning message * fix total weight size calculation 2 layers per residual block! * keep pdb files only for release builds (LeelaChessZero#1256) * doc update (LeelaChessZero#1267) * Include verbose stats for the node. (LeelaChessZero#1268) Use printing lambdas for parts of the verbose output to share between the newly outputted node and its children. * add alphazero time manager (LeelaChessZero#1201) * Updated FLAGS.md with logfile flag (LeelaChessZero#1275) * Fixed a typo in CONTRIBUTING.md (LeelaChessZero#1274) * Update Readme about using git (LeelaChessZero#1265) * Make `wl_` double. (LeelaChessZero#1280) * Move move filter population to a constructor. (LeelaChessZero#1281) * Filter out illegal searchmoves to avoid crashing. (LeelaChessZero#1282) * Clear policy for terminal loss. (LeelaChessZero#1285) * Allow smart pruning to terminate search if win is known. (LeelaChessZero#1284) * Allow smart pruning to terminate search if win is known. * Minor tweak, better safe than sorry. * Fix bug where pv might not update for best move change. (LeelaChessZero#1286) * Fix bug where pv might not update. * Fix... Co-authored-by: Alexander Lyashuk <crem@google.com> Co-authored-by: Tilps <Tilps@users.noreply.github.com> Co-authored-by: Naphthalin <40385638+Naphthalin@users.noreply.github.com> Co-authored-by: Ankan Banerjee <ankan.ban@gmail.com> Co-authored-by: Ed Lee <edilee@mozilla.com> Co-authored-by: borg323 <39573933+borg323@users.noreply.github.com> Co-authored-by: Hace <mellekoning@gmail.com> Co-authored-by: Kip Hamiltons <48076495+KipHamiltons@users.noreply.github.com> Co-authored-by: nguyenpham <axchess@yahoo.com>
Tilps
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* Time management refactoring (#1195) * Appended files. * Compiles. * Compiles again. * Make smart pruning use smoothed nps. * Seems to be fully implemented. * Mistype. * One more bug. * Found discrepancy with documentaiton. * Bugfixes. * Don't smooth nps during the first move. * Too large default for timeuse decay. * Bugfix. * Fix build. * Relax defaults a bit. Add fixed to logging. * Remove "smooth" to "smooth-experimental" for now. * MLH verbose stats - Issue 1200 (#1230) * Add M effect logic to output section * Fix missing prefixes and semicolons * Some fixes. * Slight format improvement? Co-authored-by: Tilps <Tilps@users.noreply.github.com> * Start TempDecay only after a given number of moves (#1212) * Added TempDecayStartMove for starting temp decay only after a given number of moves. This allows keeping initial game up for a few moves and still use decay. * Doesn't allow temperature to fall below endgame temp during temp decay. Still allows initial temp to be below endgame temp. * Doesn't allow temperature to fall below endgame temp during temp decay. Still allows initial temp to be below endgame temp. * Hide temp options * renamed TempDecayStartMove to TempDecayDelayMoves Co-authored-by: Alexis Olson <AlexisOlson@gmail.com> * Changelog for 0.25.0-rc2. (#1233) * Changelog for 0.25.0-rc2. * Add one more PR to the changelog. * Cuda winograd (#1228) * custom winograd convolution for cuda backends * custom winograd fixes - fix a bug to make it work for non-SE networks - enable by default only with fp32. * address review comments * remove random line in comment * remove unused constants - W,H are hardcoded to 8 - because there are assumptions in the code based on that. No point in defining constants. * cuda winograd fixes (#1238) * cuda winograd fixes - don't typecast directly to half datatype in CPU side code as older CUDA runtime doesn't support that. - don't use gemmEx version on GPUs older than Maxwell generation (not supported). - modify the check to enable custom_winograd setting. It should be faster in most cases - except presently on RTX GPUs when using fp16. * Allow most parts of fen to be optional. (#1234) Default to white to move, no castling, no en passant, 0 rule50ply, 1 total move. Also convert other string to std::string and removing using. * Fix UpdateNps to actually smooth the nps and correctly handle time_since_movestart_ms == 0 (#1243) * Update changelog for 0.25.0 final release. (#1244) * Always report at least 1 depth. (#1247) * Fix un-intended regression for GTX GPUs (#1246) * memory optimization for cudnn custom_winograd (#1250) * memory optimization for cudnn custom_winograd - don't save untransformed weights - print warning message when low memory is detected. * address review comments * fix warning message * fix total weight size calculation 2 layers per residual block! * keep pdb files only for release builds (#1256) * doc update (#1267) * Include verbose stats for the node. (#1268) Use printing lambdas for parts of the verbose output to share between the newly outputted node and its children. * add alphazero time manager (#1201) * Updated FLAGS.md with logfile flag (#1275) * Fixed a typo in CONTRIBUTING.md (#1274) * Update Readme about using git (#1265) * Make `wl_` double. (#1280) * Move move filter population to a constructor. (#1281) * Filter out illegal searchmoves to avoid crashing. (#1282) * Clear policy for terminal loss. (#1285) * Allow smart pruning to terminate search if win is known. (#1284) * Allow smart pruning to terminate search if win is known. * Minor tweak, better safe than sorry. * Fix bug where pv might not update for best move change. (#1286) * Fix bug where pv might not update. * Fix... * Catch up to master (#6) * Time management refactoring (#1195) * Appended files. * Compiles. * Compiles again. * Make smart pruning use smoothed nps. * Seems to be fully implemented. * Mistype. * One more bug. * Found discrepancy with documentaiton. * Bugfixes. * Don't smooth nps during the first move. * Too large default for timeuse decay. * Bugfix. * Fix build. * Relax defaults a bit. Add fixed to logging. * Remove "smooth" to "smooth-experimental" for now. * MLH verbose stats - Issue 1200 (#1230) * Add M effect logic to output section * Fix missing prefixes and semicolons * Some fixes. * Slight format improvement? Co-authored-by: Tilps <Tilps@users.noreply.github.com> * Start TempDecay only after a given number of moves (#1212) * Added TempDecayStartMove for starting temp decay only after a given number of moves. This allows keeping initial game up for a few moves and still use decay. * Doesn't allow temperature to fall below endgame temp during temp decay. Still allows initial temp to be below endgame temp. * Doesn't allow temperature to fall below endgame temp during temp decay. Still allows initial temp to be below endgame temp. * Hide temp options * renamed TempDecayStartMove to TempDecayDelayMoves Co-authored-by: Alexis Olson <AlexisOlson@gmail.com> * Changelog for 0.25.0-rc2. (#1233) * Changelog for 0.25.0-rc2. * Add one more PR to the changelog. * Cuda winograd (#1228) * custom winograd convolution for cuda backends * custom winograd fixes - fix a bug to make it work for non-SE networks - enable by default only with fp32. * address review comments * remove random line in comment * remove unused constants - W,H are hardcoded to 8 - because there are assumptions in the code based on that. No point in defining constants. * cuda winograd fixes (#1238) * cuda winograd fixes - don't typecast directly to half datatype in CPU side code as older CUDA runtime doesn't support that. - don't use gemmEx version on GPUs older than Maxwell generation (not supported). - modify the check to enable custom_winograd setting. It should be faster in most cases - except presently on RTX GPUs when using fp16. * Allow most parts of fen to be optional. (#1234) Default to white to move, no castling, no en passant, 0 rule50ply, 1 total move. Also convert other string to std::string and removing using. * Fix UpdateNps to actually smooth the nps and correctly handle time_since_movestart_ms == 0 (#1243) * Update changelog for 0.25.0 final release. (#1244) * Always report at least 1 depth. (#1247) * Fix un-intended regression for GTX GPUs (#1246) * memory optimization for cudnn custom_winograd (#1250) * memory optimization for cudnn custom_winograd - don't save untransformed weights - print warning message when low memory is detected. * address review comments * fix warning message * fix total weight size calculation 2 layers per residual block! * keep pdb files only for release builds (#1256) * doc update (#1267) * Include verbose stats for the node. (#1268) Use printing lambdas for parts of the verbose output to share between the newly outputted node and its children. * add alphazero time manager (#1201) * Updated FLAGS.md with logfile flag (#1275) * Fixed a typo in CONTRIBUTING.md (#1274) * Update Readme about using git (#1265) * Make `wl_` double. (#1280) * Move move filter population to a constructor. (#1281) * Filter out illegal searchmoves to avoid crashing. (#1282) * Clear policy for terminal loss. (#1285) * Allow smart pruning to terminate search if win is known. (#1284) * Allow smart pruning to terminate search if win is known. * Minor tweak, better safe than sorry. * Fix bug where pv might not update for best move change. (#1286) * Fix bug where pv might not update. * Fix... Co-authored-by: Alexander Lyashuk <crem@google.com> Co-authored-by: Tilps <Tilps@users.noreply.github.com> Co-authored-by: Naphthalin <40385638+Naphthalin@users.noreply.github.com> Co-authored-by: Ankan Banerjee <ankan.ban@gmail.com> Co-authored-by: Ed Lee <edilee@mozilla.com> Co-authored-by: borg323 <39573933+borg323@users.noreply.github.com> Co-authored-by: Hace <mellekoning@gmail.com> Co-authored-by: Kip Hamiltons <48076495+KipHamiltons@users.noreply.github.com> Co-authored-by: nguyenpham <axchess@yahoo.com> * Change defaults and unhide MLH options * Update values per @Naphthalin's comments Co-authored-by: Alexander Lyashuk <crem@google.com> Co-authored-by: Tilps <Tilps@users.noreply.github.com> Co-authored-by: Naphthalin <40385638+Naphthalin@users.noreply.github.com> Co-authored-by: Ankan Banerjee <ankan.ban@gmail.com> Co-authored-by: Ed Lee <edilee@mozilla.com> Co-authored-by: borg323 <39573933+borg323@users.noreply.github.com> Co-authored-by: Hace <mellekoning@gmail.com> Co-authored-by: Kip Hamiltons <48076495+KipHamiltons@users.noreply.github.com> Co-authored-by: nguyenpham <axchess@yahoo.com>
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This probably is worthy of a fixed node elo test to rule out any strange interactions, but I would estimate positive elo in the 0-1 range ;)
This seems a cheaper alternative to adding more logic to the pick node loop with regard to terminals.