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CPLEX Optimization Studio

Showing 26

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.
almost 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 11 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...
almost 2 years 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 ...
about 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

CPLEX: Make adding mulitple objectives consistent with adding one objective

In the Java API for CPLEX (presumably similar in other APIs), it is possible to create an objective and add it to a model in one function call, using overloads of IloCplexModeler.addMinimize() and .addMaximize() that take an IloNumExpr argument. D...
about 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

Human-readable status response

In the new multiobjective optimization support in CPLEX (Java API, but likely true in other APIs), querying status via IloCplex.getMultiObjInfo(IloCplex.MultiObjIntInfo.MultiObjStatus, ...) returns a numeric code (e.g. 107). This is difficult to i...
about 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

Add doopl in the CPLEX distribution on Watson Studio

relying on docplex python API got much easier since docplex was included in the CPLEX product. doopl which is a python package that allows to call OPL model from python code can be download from https://pypi.org/project/doopl/ but having doopl in ...
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Planned for future release

add doopl in the CPLEX distribution

relying on docplex python API got much easier since docplex was included in the CPLEX product. doopl which is a python package that allows to call OPL model from python code can be download from https://pypi.org/project/doopl/ but having doopl in ...
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

Implement nonconvex quadratic constraints in CPLEX

CPLEX already supports nonconvex quadratic objectives, but not yet constraints, even though they bring a lot of flexibility in modelling.
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

CPO interactive enhancement to write or query solution

CPO interactive misses some very useful command to simply query one solution value for a given variable with its name (allowing wildcards to display more variables) Today, the only way we can query a solution is through display solution command th...
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

OPL language enhancements : cannot slice with nested constraints on subTuples

I've been a happy user of OPL language, which has lots of wonderful features. However, there is one remaining recurrent issue in data modeling, which prevents some intuitive modeling. This is called "cannot slice with nested constraints on subTupl...
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration