Is "slurm wrap" used until EOF?

The behavior of slurm wrap regarding "end of file" (EOF) can be nuanced. Generally, slurm wrap does not inherently process until EOF in the same way a command like cat might. Here’s a breakdown of how it usually works:

1. Basic Functionality of `slurm wrap`:

- slurm wrap is used to submit a job to a Slurm workload manager, usually by wrapping an executable with necessary Slurm directives.

- It typically reads the command or script to be executed from the command line or from an input file given by a redirection or pipe.

2. How Input is Handled:

- When you use slurm wrap with a piped command like command | slurm wrap, the output of `command` becomes the input for `slurm wrap`. However, slurm wrap isn't designed to continue reading from this input until EOF. It processes the input as a single command or script and then executes that within the slurm environment.

3. Not an "Until EOF" Reader:

- Unlike commands like `cat`, `slurm wrap` doesn't continuously wait for more data from the standard input. It consumes the input to understand what job to submit, rather than acting on data streams continuously.

4. Script Execution:

- If the input to `slurm wrap` is a script, that script is submitted as a Slurm job. The behavior of the script itself is what defines if it will use an incoming stream until end-of-file. slurm wrap is only involved in submitting the job, not in the script's I/O operations.

5. Example and Explanation:

- Consider you have a file my_script.sh which reads from stdin:

#!/bin/bash
while read line;
do
echo "Processed: $line"
done


If you run:

echo "line1" | slurm wrap my_script.sh

slurm wrap will submit my_script.sh to Slurm and my_script.sh will use the input "line1" and process it. It's not that slurm wrap will be reading the input line by line, but that the script that slurm wrap submitted will.

6. In Summary:

- slurm wrap itself is not an "until EOF" reader. Its primary role is to package a job for submission. The script or command it submits is what dictates whether input is processed until EOF.

- If you need to process input until EOF, you will need to create your own script (which slurm will submit) which implements this logic.

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