one is selected it will be used for all purposes: small messages and long messages (even if the
long message is still split in several fragments). For the case where 2 PTLs per peer exists,
the first one is for latency (small messages and rendez-vous requests) when the second one
will be used for bandwitdh.
This commit was SVN r5600.
The idea behind this PML is to minimiza the overhead of managing multiple PTL. For each node, UNIQ keep two PTL's
one for latency and one for bandwidth. One the next version I want to add a configure parameter to allow the user
to select how many PTL's he want: one or two.
This commit was SVN r5593.