Initializing help system before first use

DETERMINISTIC

Description
Selects whether to use a deterministic or opportunistic mode when solving a problem using multiple threads.
Type
Integer
Topic area
Determinism
Values
0 
Use opportunistic mode.
1 
Use deterministic mode.
2 
Use deterministic mode, except allow the initial concurrent continuous solve of a MIP to be opportunistic.
Default value
1
Notes
In deterministic mode thread synchronization is performed in deterministic order, which guarantees that repeated solves of the same problems under the same starting conditions will always produce the same outcome. This assumes that there are no non-deterministic events affecting the solve, such as interruption due to time limits or non-deterministic interaction through callback functions.
In opportunistic mode the solver will always schedule work on any available thread. This can produce higher CPU utilization, but will sacrifice reproducability.
Affects routines
XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE).
See also
THREADS.
Category
Control

Parent Topic Control Parameters

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