Reduced Model Generation Time on Multi-core Machines: Solvers with multicore extensions include Barrier, Global, Integer, Linear, Multistart and Stochastic. Parallel algorithms, on the other hand, parallelize computationally intensive portions of the serial algorithm to distribute the workload across multiple threads. Concurrent algorithms run two or more different serial algorithms on multiple copies of the same model, using a separate thread for each algorithm, terminating as soon as the winner thread finishes. The multicore extensions are of two types: concurrent and parallel. LINGO 14.0 and What’sBest! 12 can take advantage of computers with multicore processors. Reduced Solve Time on Multi-core Machines: Among other things, these functions are useful for answering questions of the form, "If the my flight leaves Chicago at 10:30 am on June 21 and the flight to Beijing takes 13 hours, what will the date and local time be in Beijing when I land, and will I be able catch a local flight at. These functions are helpful when you need to perform date arithmetic in your models. The Symmetric Stable is sometimes used to model the movement of prices in financial markets.Ī number of new functions have been added to convert dates to and from scalar time, where scalar time is defined as the number of seconds since midnight. The Beta-Binomial is useful in Bayesian analysis involving the Binomial distribution, e.g., in designing sampling plans for new drug trials. Stochastic programming models may also specify random variables as having either a Beta-binomial or Symmetric Stable distribution. The Beta-Binomial and Symmetric Stable distributions have been added to the list of supported distributions. More Probability Distributions Available for Planning Under Uncertainty: There is now a simple command, ), for computing the numerical integral of a function over an interval. Callable procedures are similar to CALC sections, however, unlike CALC sections, procedures may be called and executed multiple times. This is handy for applications in which the definition of a set of objects is complicated. The function has been added, which allows the dynamic addition of set members to derived sets. Dynamic/Programmatically Derived Sets in LINGO: If a matrix has good block-triangular structure, then the model is likely to perform well when solved with the new Branch-and-Price solver.įor models with more than 10,000 variables or constraints, the speed of rendering of the display has been improved by several orders of magnitude. Here is the same problem with rows and columns permuted with just a click into block-triangular format. Here for example is the display of a model in its original ordering: You may now choose to have a model's underlying matrix displayed in a variety of orderings. Multiple networks can be displayed on a single chart.Įasy generation, e.g., two or three statements, of graphs of functions, e.g. The Network Chart Type can display charts of networks.  New Chart Display Capabilities in LINGO:
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