Revert "remove MaxTasksperNode=32"

This reverts commit b426b1955e672181ab89f8cab8fce800b116fe04.

Author: pllopis

templates/slurm.conf.erb

@@ -202,6 +202,7 @@ FastSchedule=<%= @fast_schedule %>
 MaxArraySize=<%= @max_array_size %>
 MaxMemPerCPU=<%= @max_mem_per_cpu %>
 MaxMemPerNode=<%= @max_mem_per_node %>
+MaxTasksPerNode=<%= @max_tasks_per_node %>
 MpiDefault=<%= @mpi_default %>
 <%= @mpi_params.nil? ? '#MpiParams=' : ('MpiParams=' + @mpi_params) %>
 <%= @prolog_slurmctld.nil? ? '#PrologSlurmctld=' : ('PrologSlurmctld=' + @prolog_slurmctld) %>