Procedure GMP::SolverSession::AsynchronousExecute(solverSession)

# GMP::SolverSession::AsynchronousExecute¶

The procedure GMP::SolverSession::AsynchronousExecute invokes the solution algorithm to asynchronous solve a generated mathematical program by using a solver session.

GMP::SolverSession::AsynchronousExecute(
solverSession   ! (input) a solver session
)


## Arguments¶

solverSession

An element in the set AllSolverSessions.

## Return Value¶

The procedure returns 1 on success, or 0 otherwise.

Note

• This procedure will not copy the initial solution into the solver, or copy the final solution back into solution repository or model identifiers. When you use this function you always have to explicitly call functions from the GMP::Solution namespace to accomplish these tasks.

• The following solvers are thread-safe and can be used for solving multiple mathematical programs in parallel using the same solver: CPLEX, GUROBI, XA, CONOPT, and KNITRO.

• The following solvers are not thread-safe but the AIMMS-solver interface is thread safe and therefore they can be used in parallel with another solver: IPOPT and SNOPT. For example, SNOPT 7.1 can be used in parallel with IPOPT but it cannot be used in parallel with SNOPT 7.1.

• The procedure GMP::SolverSession::AsynchronousExecute cannot be used by the following solvers: AOA, BARON, CBC, ODH-CPLEX, and PATH.

• Calling GMP::SolverSession::AsynchronousExecute inside a callback procedure is not allowed.

• The procedure GMP::SolverSession::AsynchronousExecute cannot be used if an external function is used in a constraint.

• The procedures GMP::SolverSession::WaitForCompletion and GMP::SolverSession::WaitForSingleCompletion can be used to let AIMMS wait until one or more asynchronous executing solver sessions are finished.

• Normal solve statements will be ignored during an asynchronous execution of a solver session.

• Sensitivity ranges will not be calculated during an asynchronous solve.

• This procedure does not create a listing file but you can use the procedure GMP::Solution::ConstraintListing for that.