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MosekTools is the MathOptInterface.jl implementation for the MOSEK solver. The low-level solver API for MOSEK is found in the package Mosek.jl. The latest release of this package and the mosekv8 branch are to be used with the latest release of Mosek.jl (which uses MOSEK v8). To use MOSEK v9, use the master branch of both this package and Mosek.jl.

The Mosek specific model object (used for example with JuMP) is created as

using MosekTools
model = Mosek.Optimizer()

hence to use Mosek in a JuMP model, do, e.g.,

using JuMP
using MosekTools
model = Model(with_optimizer(Mosek.Optimizer, QUIET=false, INTPNT_CO_TOL_DFEAS=1e-7))

The parameter QUIET is a special parameter that when set to true disables all Mosek printing output. All other parameters can be found in the Mosek doc. Note that the prefix MSK_IPAR_ (for integer parameters), MSK_DPAR_ (for floating point parameters) or MSK_SPAR_ (for string parameters) are optional. If they are not given, they are inferred from the type of the value. For instance, in the example above, as 1e-7 is a floating point number, the parameters name used is MSK_DPAR_INTPNT_CO_TOL_DFEAS.