julialangHow to use addprocs in JuliaLang?

To use addprocs in JuliaLang, you need to first start a cluster of workers. This can be done with the addprocs function, which takes the number of workers to start as an argument.

addprocs(4)

This will start 4 workers, and the output will look like this:

julia> addprocs(4)
4-element Array{Int64,1}:
 2
 3
 4
 5

Once the workers are started, you can use the @spawn macro to run code on the workers. The syntax is @spawn <expression>, where <expression> is the code you want to run on the workers.

@spawn println("Hello from worker $(myid())!")

This will print out a message from worker, like this:

Hello from worker 3!

For more information, see the Julia documentation on parallel computing.

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