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Instrument path following to track performance statistics. #1162

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Merged
tturocy merged 8 commits into from
Sep 29, 2026
Merged

Instrument path following to track performance statistics. #1162

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5eba497
Instrument path following to track performance statistics.
tturocy Sep 28, 2026
0a97ecc
Add golden tests for computing agent LQRE.
tturocy Sep 28, 2026
3615513
Compute agent logit Jacobian in a single pass over the game tree
tturocy Sep 28, 2026
c620b03
Evaluate agent logit equations on a flattened game tree.
tturocy Sep 28, 2026
53285d7
Compute behavior profile quantities on a shared flattened tree layout.
tturocy Sep 28, 2026
4a6d723
Share the tree layout and action value derivatives between logit and …
tturocy Sep 28, 2026
529f368
Record Givens rotations rather than forming Q explicitly in path foll…
tturocy Sep 28, 2026
c87aba9
Keep a behavior profile's layout consistent with its cache on assignm…
tturocy Sep 28, 2026
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3 changes: 3 additions & 0 deletions ChangeLog
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Expand Up @@ -18,6 +18,9 @@
`History` (the actions from the root, comma-joined).
- The command-line tools' `-D` report now identifies each player by their own label, rather than by
their position among the game's players.
- Substantially faster computation of the agent logit QRE correspondence for extensive games,
and of payoffs, beliefs and regrets of mixed behavior profiles on large game trees. Path
following (logit and hp) also spends about half as long factorizing Jacobians. (#1162)

## [17.0.0-beta.1] - 2026-09-08

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4 changes: 2 additions & 2 deletions Makefile.am
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Expand Up @@ -219,6 +219,8 @@ game_SOURCES = \
src/games/behavpure.h \
src/games/behavmixed.cc \
src/games/behavmixed.h \
src/games/treelayout.cc \
src/games/treelayout.h \
src/games/seqpure.cc \
src/games/seqpure.h \
src/games/seqmixed.h \
Expand Down Expand Up @@ -317,8 +319,6 @@ path_SOURCES = \
src/solvers/path/path.h

logit_SOURCES = \
src/solvers/logit/logbehav.h \
src/solvers/logit/logbehav.cc \
src/solvers/logit/logit.h \
src/solvers/logit/efglogit.cc \
src/solvers/logit/nfglogit.cc
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1 change: 1 addition & 0 deletions src/games.h
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Expand Up @@ -29,6 +29,7 @@
#include "games/writer.h"

#include "games/behavspt.h"
#include "games/treelayout.h"
#include "games/behavmixed.h"
#include "games/behavpure.h"
#include "games/seqpure.h"
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