Hello dears users,

I want to define the limit of CPU time, gap etc for CPLEX in a given integer problem. In JuMP version v0.19 I was used to define:

```
model=Model(with_optimizer(CPLEX.Optimizer,CPX_PARAM_TILIM=10800,CPX_PARAM_SCRIND=0,
CPX_PARAM_EPGAP=0.001))
```

In the new version, this command does not work.

Anyone could help me plese?

How can I define the same parameters before the optmization?

Many thanks

1 Like

odow
#2
```
model = Model(with_optimizer(CPLEX.Optimizer))
set_parameters(model, "CPX_PARAM_TILIM" => 10_800, "CPX_PARAM_SCRIND" => 0)
```

2 Likes

I have the following error message:

```
UndefVarError: set_parameters not defined
top-level scope at none:0
```

The version of my Packages are:

[c52e3926] Atom v0.11.3

[a076750e] CPLEX v0.6.3

[5789e2e9] FileIO v1.2.2

[7073ff75] IJulia v1.21.1

[b6b21f68] Ipopt v0.6.1

[033835bb] JLD2 v0.1.11

[4076af6c] JuMP v0.20.1

[2ddba703] Juniper v0.5.3

[e5e0dc1b] Juno v0.7.2

[91a5bcdd] Plots v0.29.1

[37e2e46d] LinearAlgebra

[de0858da] Printf

[9e88b42a] Serialization

[10745b16] Statistics

The correct is:

model = Model(with_optimizer(CPLEX.Optimizer)) set_parameters(model, â€śCPX_PARAM_TILIMâ€ť , 10_800, â€śCPX_PARAM_SCRINDâ€ť , 0)

1 Like