# Supressing verbosity of dual Models (JuMP, Dualization and Mosek)
**URL:** https://discourse.julialang.org/t/supressing-verbosity-of-dual-models-jump-dualization-and-mosek/37065
**Category:** Optimization (Mathematical)
**Tags:** jump, mosek
**Created:** [April 5, 2020, 3:42pm UTC](https://discourse.julialang.org/t/supressing-verbosity-of-dual-models-jump-dualization-and-mosek/37065 "2020-04-05T15:42:17Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@martincornejo](https://discourse.julialang.org/u/martincornejo)
#### Post date: [April 5, 2020, 3:42pm UTC](https://discourse.julialang.org/t/supressing-verbosity-of-dual-models-jump-dualization-and-mosek/37065/1 "2020-04-05T15:42:18Z")
I have tried multiple methods to silence the verbosity of “dualized Mosek”. (Currently using JuMP v0.20.2 and Dualization v0.2.2)
```julia
julia> model = Model(with_optimizer(() -> Dualization.DualOptimizer(Mosek.Optimizer())))
A JuMP Model
Feasibility problem with:
Variables: 0
Model mode: AUTOMATIC
CachingOptimizer state: EMPTY_OPTIMIZER
Solver name: Dual model with Mosek attached
julia> set_silent(model)
ERROR: MathOptInterface.UnsupportedAttribute{MathOptInterface.Silent}: Attribute MathOptInterface.Silent() is not supported by the model.
```
The error is not present when using Mosek directly.
```julia
julia> model = Model(with_optimizer(Mosek.Optimizer))
A JuMP Model
Feasibility problem with:
Variables: 0
Model mode: AUTOMATIC
CachingOptimizer state: EMPTY_OPTIMIZER
Solver name: Mosek
julia> set_silent(model)
true
```
Is there any method I could use? Or is this a Dualization bug?
---
### Author:  [@blegat](https://discourse.julialang.org/u/blegat)
#### Post date: [April 5, 2020, 7:02pm UTC](https://discourse.julialang.org/t/supressing-verbosity-of-dual-models-jump-dualization-and-mosek/37065/2 "2020-04-05T19:02:47Z")
Update Dualization to v0.3 and JuMP to v0.21 and do
```julia
model = Model(Dualization.dual_optimizer(optimizer_with_attributes(Mosek.Optimizer, MOI.Silent() => true)))
```
The fix for `set_silent` is coming in [Implement setting optimizer attributes by blegat · Pull Request #85 · jump-dev/Dualization.jl · GitHub](https://github.com/JuliaOpt/Dualization.jl/pull/85)
---
### Author:  [@martincornejo](https://discourse.julialang.org/u/martincornejo)
#### Post date: [April 5, 2020, 7:25pm UTC](https://discourse.julialang.org/t/supressing-verbosity-of-dual-models-jump-dualization-and-mosek/37065/3 "2020-04-05T19:25:33Z")
Thank you! Seems Dualization is now supporting JuMP v0.21 😄