[slurm-users] Heterogeneous job one MPI_COMM_WORLD

[Chris Samuel]

On 10/10/18 05:07, Christopher Benjamin Coffey wrote:

> Yet, we get an error: " srun: fatal: Job steps that span multiple
> components of a heterogeneous job are not currently supported". But
> the docs seem to indicate it should work?

Which version of Slurm are you on?  It was disabled by default in
17.11.x (and I'm not even sure it works if you enable it there) and
seems to be enabled by default in 18.08.x.

To see check the _enable_pack_steps() function src/srun/srun.c

All the best,
Chris (currently away in the UK)
-- 
  Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC