IBM Data and AI Ideas Portal for Customers


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Decision Optimization CPLEX & For Watson Studio

Showing 68

CPLEX object create by oplrun and concert shall be equal

the CPLEX object created by an OPL model is not the same as tyhe CPLEX object created with concert technology.It creates limitation and complexity that prevent people to use OPL in many cases, such advance algorithms with call backs manual cuts......
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

handle C,C++,C# Java, python CPLEX model with CPLEX server

The CPLEX server handle only OPL model. It should also provide the queing, load balancing, security and flexibility for all the other source of model written with Concert technology
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Extend CPLEX for Matlab to support the Matlab Compiler

CPLEX for MATLAB is an extension to IBM® ILOG® CPLEX Optimizers that allows a user to define optimization problems and solve them within MATLAB's development environment. However, an optimisation module developped with CPLEX for MATLAB and compile...
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Make CP cumulFunction and expressions accept float instead of int

cumulFunction and expressions currently only allow the resource usage to be int which is not useful for all resource types. Whilst a workaround of multiplying the int by a large number to approximate the float is possible there are limitations and...
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Tuning Tool should work for CP as well as CPLEX

The Tuning Tool only works for CPLEX. It should also be made to work for CP.
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

C-like printf function for OPL Script

Need a nice fct for displaying floats ? like printf('%.2f') . identation. number of decimals. for string as well. for arrays as well
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

OPL Script function to see which variables exist in model

Using OPL script, is it possible to know whether a given variable name exists in model ? For instance, something like model.contains("x") that would return true if x is a variable in model. If yes, is there any way of knowing the type and the indi...
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

OPL function to assign a initial value or fix te value to a variable

The only way to do a warm start is by using OPL script.it should be possible in the variable declaration to give a start value. the same way if you want to fix a variable to a value you need to 2 lines of code to fix the upper and lower bounds... ...
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

graphical dash board of the search console/log

have graph to represent the node through-put, number of active node, memory consumed, CPUs usage
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Solve MPS, SAV, .... model file in CPLEX studio

LP file can be run in the IDE. great. but MPS or other type of file can not be
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

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