Output file is not populated in real time

[matthiasbe]

Consider the following julia script

#!/path/to/julia --project

using SlurmClusterManager
using Distributed

addprocs(SlurmManager())

i = 0
for i in 1:10
        sleep(1)
        fetch(@spawnat (workers()[i % length(workers()) + 1]) println(i))
end

When I run this on my local session, it prints every second.

When I run this on the cluster with the slurm manager, it print everything at the termination of the job. This makes it difficult to track the progress of the job.

[matthiasbe]

This does not come from the Cluster Manager. adding flush(stdout) for each printing solve the problem.

More info https://discourse.julialang.org/t/how-to-flush-stdout/10146