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Merge pull request #18 from fverdugo/francesc

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Update the Getting Started tutorial to the new version of MPI.jl
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Francesc Verdugo 2023-09-08 18:22:12 +02:00 committed by GitHub
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15
docs/src/getting_started_with_julia.md
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@ -227,20 +227,7 @@ To run MPI applications in parallel, you need a launcher like `mpiexec`. MPI cod
```
$ mpiexec -np 4 julia hello_mpi.jl
```
But it will probably not work since the version of `mpiexec` needs to match with the MPI version we are using from Julia. You can find the path to the `mpiexec` binary you need to use with these commands
```julia
julia> using MPI
julia> MPI.mpiexec_path
```
and then try again
```
$ /path/to/my/mpiexec -np 4 julia hello_mpi.jl
```
with your particular path.
However, this is not very convenient. Don't worry if you could not make it work! A more elegant way to run MPI code is from the Julia REPL directly, by using these commands:
But it will probably not work since the version of `mpiexec` needs to match with the MPI version we are using from Julia. Don't worry if you could not make it work! A more elegant way to run MPI code is from the Julia REPL directly, by using these commands:
```julia
julia> using MPI
julia> mpiexec(cmd->run(`$cmd -np 4 julia hello_mpi.jl`))