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Decision Optimization CPLEX & For Watson Studio

Showing 101

In OPL ODBC connection, add a setting for batch size

The prebuilt ODBCConnection allows OPL to access databases using ODBC.One way to optimize database access is to tune the execution batch size.With older versions of OPL that included DBLink, this was the dbUpdateBatchSize parameter.

Add support for Java 11 in CPLEX java API

Currently, CPLEX and CPO provide a java API to the engines.This API currently supports Java 8 (IBM SDK and Oracle Java).A more recent versions of Java with LTS is Java 11 - It would be nice if CPLEX Optimization studio officially supports Java 11 ...

Callbacks from CP for .Net languages like C#

Callbacks are available from CP using C++ or Java, but not if using the API from C# (or any .Net language). This seems to be very strange as the internal structures must be there inside the CP libraries etc in order to support the callbacks from C...

Interface between CPLEX and FORTRAN

Since FORTRAN is one of the TOP20 programming languages in the TIOBE index (, I suggest that IBM create mixed-integer linear programming models with CPLEX and FORTRAN. I have not found a library similar to Conce...
4 months ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Not under consideration

WML multiprocessing support

Multiprocessing using Pythons multiprocesing library works with Notebooks in Watson Studio, but not for deployed WML models. Multiprocessing for DOCPLEX MILP models can significantly reduce time and resources used for solving a set of several mode...

IBM Z Common Data Provider template for the User Define SMF Record Type 249 cut by DVM

The customer is using IBM Z Common Data Provider (zCDP) to stream SMF records in real-time to their Splunk. zCDP provides policies for all the non user define SMF records, the SMF249 is a user define record, hence zCDP can't reference o it, so it ...
7 months ago in Decision Optimization CPLEX & For Watson Studio 3 Planned for future release

Enhance .NET API for maps

When attempting to use the reflection mechanism of OPL CPLEX API under .NET (version 12.9 but same problem seen in documentation of latest version), I stumble upon an error on my first implementation of a missing method "NbDim" for the map class "...

Bring MATLAB interface back for CPLEX

Please bring back the MATLAB interface for CPLEX. We rely heavily on this feature since toolboxes we use are Matlab exclusive.
10 months ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 6 Future consideration

Produce log during OPL Extract phase similar to Solve Engine Log

Many OPL real-world optimisations spend a large proportion of the overall solve time performing extraction/generation and there is no log of what is happening during this time. There should be a log produced during Extract similar to the Engine Lo...
11 months ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

Allow initialisation using OPL of arrays within tuple sets

In OPL it is not possible to initialise an array which is within a set of tuples either through values or programmatically. An enhancement should be made to OPL to allow this.Consider:{string} Factors = {"a","b","c"};tuple T_2 { key int i; int a[F...
about 1 year ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration