Re: [OMPI devel] TCP BTL's multi-link behavior

2017-04-26 Thread George Bosilca
I wouldn't put too much fate in my memory either. What I recall is that the multi-link code was written mainly for the PS4, where the supervisor would limit the bandwidth per socket to about 60% of the hardware capabilities. Thus, by using multiple links (in fact sockets between a set of peers) we

[OMPI devel] TCP BTL's multi-link behavior

2017-04-26 Thread Barrett, Brian via devel
George - Do you remember why you adjusted both the latency and bandwidth for secondary links when using multi-link support with the TCP BTL [1]? I think I understand why, but your memory of 10 years ago is hopefully more accurate than my reverse engineering ;). Thanks, Brian [1] https://