Modify LSFEnvironment to use more reliable environment variable (#10825)
Co-authored-by: thomas chaton <thomas@grid.ai>
Co-authored-by: Carlos Mocholí <carlossmocholi@gmail.com>
Co-authored-by: Adrian Wälchli <aedu.waelchli@gmail.com>
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
Co-authored-by: Andrew Tritt <andrew.j.tritt@gmail.com>