Hi Ralph, It would be great to have it for load balancing issues. Ideally one could do something like --bind-to:N where N is the block size, 4 in this case.
mpirun -np 40 --map-by ppr:40:node --bind-to core:4 I think it would be interesting to have it. Of course, I can always use srun but not all system run Slurm. > Of course, you could fake it out even today by breaking it into > multiple app-contexts on the cmd line. Something like this (again, > shortening it to just two nodes): > > mpirun --map-by node --rank-by slot --bind-to core --np 8 myapp : --np > 8 myapp : --np 8 myapp : --np 8 myapp : --np 8 myapp > It is a valid options, tedious for large number of nodes though. Thanks!
