https://github.com/tkf/julia-t

Run `julia` with `JULIA_NUM_THREADS=<number of physical cores>`.
https://github.com/tkf/julia-t

distributed-computing julia parallel-computing

Last synced: 21 days ago
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Run `julia` with `JULIA_NUM_THREADS=<number of physical cores>`.

• Host: GitHub
• URL: https://github.com/tkf/julia-t
• Owner: tkf
• Created: 2020-01-09T03:34:56.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-01-09T05:23:23.000Z (over 6 years ago)
• Last Synced: 2025-03-27T14:53:35.820Z (about 1 year ago)
• Topics: distributed-computing, julia, parallel-computing
• Language: Python
• Homepage:
• Size: 6.84 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README

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README

          
usage: julia-t [-h] [-t N] [--julia JULIA] [args...]

Run `julia` with `JULIA_NUM_THREADS=`.

Use `julia-t` in place of `julia` to run `julia` with appropriate

`$JULIA_NUM_THREADS`.  Arguments are passed to `julia` as-is except for

`--julia` option that controls the actual `julia` binary to be used.

## Installation

`julia-t` is just a simple Python script.  It can be installed by, for

example:

    wget https://raw.githubusercontent.com/tkf/julia-t/master/julia-t

    chmod u+x julia-t

## Using `julia-t` with `Distributed`

This script is useful for launching multi-threaded Julia workers with

`Distributed.addprocs`:

    addprocs(1, exename="julia-t")

Use `--julia` option if there are multiple `julia` binaries:

    addprocs(1, exename="julia-t", exeflags=`--julia=$(Base.julia_cmd().exec[1])`)

optional arguments:

  -h, --help          show this help message and exit

  --julia JULIA       Julia binary to be used. Default value is the file name

                      of this script without the suffix `-t`. If this script

                      is called `julia1.3-t`, the executable named `julia1.3`

                      is used. Use symlinks for using `julia-t` with different

                      `julia` versions; e.g., `ln -s julia-t julia1.3-t`.

                      (default: julia)

  --nthreads N, -t N  The value of `$JULIA_NUM_THREADS` to be used by `julia`.

                      Environment variable `$JULIA_NUM_THREADS` is used as-is

                      if it is set. Otherwise default to the number of

                      physical cores. (default: 4)