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solver:osicplex_osigurobi_osimosek_osixpress

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solver:osicplex_osigurobi_osimosek_osixpress [2013/11/01 10:45]
support
solver:osicplex_osigurobi_osimosek_osixpress [2017/09/02 19:33]
support
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 ===== Using OSI Solver link with a standalone solver license ===== ===== Using OSI Solver link with a standalone solver license =====
  
-OSI/Gurobi, OSI/Mosek and OSI/Xpress do not require a GAMS license for the specific solver, instead the license authentication can be done by using the authentication procedure by the corresponding standalone solver. In this case you can instruct the authentication procedure to find the standalone license. This may require that you set the environmental path to the bin directory of the standalone solver. A older standalone license than the one used in GAMS might not work properly.Note that GAMS/​OSI/​Cplex can only be authenticated by extending your GAMS license. To add GAMS/​OSI/​Cplex to your GAMS license, please write to //​[[sales@gams.com|sales@gams.com]]//​ to confirm that you are a member of a particular program, that you have a valid license agreement, and that your use of the GAMS solver will comply with the terms of that license agreement. Please reference your License ID, DCxxxx, which you can find in your license file (''​gamslice.txt''​). ​Note that this alternative is not available for a standalone version of Xpress. +OSI/Gurobi, OSI/Mosek and OSI/Xpress do not require a GAMS license for the specific solver, instead the license authentication can be done by using the authentication procedure by the corresponding standalone solver. In this case you can instruct the authentication procedure to find the standalone license. This may require that you set the environmental path to the bin directory of the standalone solver. A older standalone license than the one used in GAMS might not work properly.Note that GAMS/​OSI/​Cplex can only be authenticated by extending your GAMS license. To add GAMS/​OSI/​Cplex to your GAMS license, please write to //​[[sales@gams.com|sales@gams.com]]//​ to confirm that you are a member of a particular program, that you have a valid license agreement, and that your use of the GAMS solver will comply with the terms of that license agreement. Please reference your License ID, DCxxxx, which you can find in your license file (''​gamslice.txt''​). ​
 ===== Usage of these links ===== ===== Usage of these links =====
 The OSI links support linear equations and continuous, binary, and integer variables. Semicontinuous and Semiinteger variables, special ordered sets, branching priorities, and indicator constraints are currently not supported by Osi.  The links only support the general GAMS options ''​reslim,​ optca''​ (except for Gurobi), ''​optcr'',​ ''​nodlim'',​ and ''​iterlim''​. In addition an option file in the format required by the solver can be provided via the GAMS ''​optfile''​ option. The OSI links support linear equations and continuous, binary, and integer variables. Semicontinuous and Semiinteger variables, special ordered sets, branching priorities, and indicator constraints are currently not supported by Osi.  The links only support the general GAMS options ''​reslim,​ optca''​ (except for Gurobi), ''​optcr'',​ ''​nodlim'',​ and ''​iterlim''​. In addition an option file in the format required by the solver can be provided via the GAMS ''​optfile''​ option.
  
-The links are "as is" software. We are aware that many features of the true GAMS/Cplex, Gurobi, Mosek, and Xpress links are missing from the OSI link. If you want to have the full functionality please consider to purchase the GAMS/solver link.  The OSI links require an appropriate solver license. Moreover, your license must support the version of the solver that ships with the GAMS system. Please take a look a this [[http://​www.gams.com/​modtype/index.htm|table]] for the versions of the solver included in the current distribution.+The links are "as is" software. We are aware that many features of the true GAMS/Cplex, Gurobi, Mosek, and Xpress links are missing from the OSI link. If you want to have the full functionality please consider to purchase the GAMS/solver link.  The OSI links require an appropriate solver license. Moreover, your license must support the version of the solver that ships with the GAMS system. Please take a look a this [[https://​www.gams.com/​latest/docs/S_MAIN.html|table]] for the versions of the solver included in the current distribution.
  
 The following statement can be used inside your GAMS program to specify using OSIGurobi The following statement can be used inside your GAMS program to specify using OSIGurobi