Back to SYMPHONY Home Page
Next: Changes to the User
Up: Introduction
Previous: Introduction
If you are new to SYMPHONY, you can skip to Section
1.3. Here is a list the new features available in
SYMPHONY 2.8:
- New search rules. There are new search rules
available in the tree manager. These rules enable better control
of diving.
- More accurate timing information. Reported timing
information is now more accurate.
- Idle Time Reporting. Measures of processor idle
time are now reported in the run statistics.
- More efficient cut pool management. Cuts are now
optionally ranked and purged according to a user-defined
measure of quality. See the description of user_check_cut().
- Easier use of built-in branching functions.
Built-in branching functions can now be more easily called
directly by the user if desired. Previously, these functions
required the passing of internal data structures, making them
difficult for the user to call directly. See the functions
branch_* in the file LP/lp_branch.c for usage.
- Better control of strong branching. A new strong
branching strategy allows the user to specify that more strong
branching candidates should be used near the top of the tree
where branching decisions are more critical. See the
description of the relevant parameters.
Next: Changes to the User
Up: Introduction
Previous: Introduction
Ted Ralphs
2000-09-08