[Depends on #3960 and #3963] Performance enhancements for XpressDirect / XpressPersistent for large LPs / MIPs#3879

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bknueven wants to merge 24 commits into

Pyomo:mainfrom

bknueven:xpress-constraint-addition

Commits on Mar 20, 2026

refactor xpress direct/persistent to work on the matrix directly

Bernard Knueven
authored and
Bernard Knueven
committed
add keep_range_constraints to LinearStandardFormCompiler

Bernard Knueven
authored and
Bernard Knueven
committed
add option-driven path to use LinearStandardFormCompiler

Bernard Knueven
authored and
Bernard Knueven
committed

Commits on Mar 21, 2026

NFC: formatting

Bernard Knueven
authored and
Bernard Knueven
committed

Commits on May 11, 2026

Merge remote-tracking branch 'upstream/main' into xpress-constraint-addition

Bernard Knueven
authored and
Bernard Knueven
committed
range is positional in modern versions of the Xpress API

Bernard Knueven
authored and
Bernard Knueven
committed
automatically apply LinearStandardFormCompiler

Bernard Knueven
authored and
Bernard Knueven
committed
allow LinearStandardFormCompiler to return unhandled nonlinear constraints

Bernard Knueven
authored and
Bernard Knueven
committed
pass through non-linear constraints and objectives

Bernard Knueven
authored and
Bernard Knueven
committed
cleanup range constraints

Bernard Knueven
authored and
Bernard Knueven
committed
fixup xpress interface for range constraint

Bernard Knueven
authored and
Bernard Knueven
committed
update standard form test for better range constraint handling

Bernard Knueven
authored and
Bernard Knueven
committed
NFC: black on standard_form.py

Bernard Knueven
authored and
Bernard Knueven
committed
allow SOS constraints (and other ctypes) to pass for standard form

Bernard Knueven
authored and
Bernard Knueven
committed
support template constraints; fix SOS constraints

Bernard Knueven
authored and
Bernard Knueven
committed
NFC: black

Bernard Knueven
authored and
Bernard Knueven
committed
fix bug pyomo.kernel variabls in TemplateVarRecorder

Bernard Knueven
authored and
Bernard Knueven
committed
bugfix: use conname for LSFC

Bernard Knueven
authored and
Bernard Knueven
committed
handle kernel range constraints in LSFC

Bernard Knueven
authored and
Bernard Knueven
committed
don't skip trivial constraints if skip_trivial_constraints is False

Bernard Knueven
authored and
Bernard Knueven
committed
bugfix: standard form normalizes constraints with +/-inf bounds

Bernard Knueven
authored and
Bernard Knueven
committed
update addRows, pass by kwarg

Bernard Knueven
authored and
Bernard Knueven
committed
fix brittle IIS test

Bernard Knueven
authored and
Bernard Knueven
committed
update LSFI to be self-consistent

Bernard Knueven
authored and
Bernard Knueven
committed

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[Depends on #3960 and #3963] Performance enhancements for XpressDirect / XpressPersistent for large LPs / MIPs#3879

[Depends on #3960 and #3963] Performance enhancements for XpressDirect / XpressPersistent for large LPs / MIPs#3879
bknueven wants to merge 24 commits into
Pyomo:mainfrom
bknueven:xpress-constraint-addition

Commits on Mar 20, 2026

refactor xpress direct/persistent to work on the matrix directly

add keep_range_constraints to LinearStandardFormCompiler

add option-driven path to use LinearStandardFormCompiler

Commits on Mar 21, 2026

NFC: formatting

Commits on May 11, 2026

Merge remote-tracking branch 'upstream/main' into xpress-constraint-addition

range is positional in modern versions of the Xpress API

automatically apply LinearStandardFormCompiler

allow LinearStandardFormCompiler to return unhandled nonlinear constraints

pass through non-linear constraints and objectives

cleanup range constraints

fixup xpress interface for range constraint

update standard form test for better range constraint handling

NFC: black on standard_form.py

allow SOS constraints (and other ctypes) to pass for standard form

support template constraints; fix SOS constraints

NFC: black

fix bug pyomo.kernel variabls in TemplateVarRecorder

bugfix: use conname for LSFC

handle kernel range constraints in LSFC

don't skip trivial constraints if skip_trivial_constraints is False

bugfix: standard form normalizes constraints with +/-inf bounds

update addRows, pass by kwarg

fix brittle IIS test

update LSFI to be self-consistent