On 5 January 2017 at 13:46, Ansgar Burchardt <ans...@debian.org> wrote:
> On my laptop with 4 cores + HT (so 8 threads), I see `mpirun` complain
> once I start more than 4 processes, i.e. more processes than real
> cores. Did you count threads or cores when you tried?
I haven't been able to duplicate that behaviour ('not enough slots
available' with more than enough CPUs available) on any real hardware.
I think I must have seen that message on the Ubuntu autopkgtest
runners which are single core cloud instances, not quad core machines
like their buildds, and been confused.
