Re: [Beowulf] Mutiple IB networks in one cluster

2014-02-04 Thread Bill Broadley
On 02/01/2014 08:17 AM, atchley tds.net wrote: > The cross-bar switch only guarantees non-blocking if the two ports are on > the same line card (i.e. using the same crossbar). Once you start > traversing multiple crossbars, you are sharing links and can experience > congestion. Full backplane mean

Re: [Beowulf] Mutiple IB networks in one cluster

2014-02-04 Thread Prentice Bisbal
On 02/03/2014 10:52 AM, Andrew Holway wrote: There is no specific application. This is for a university-wide cluster that will be used by many different researchers in many different fields using many different applications. Unless you have a specific application that requires it I would be fai

Re: [Beowulf] Mutiple IB networks in one cluster

2014-02-04 Thread Prentice Bisbal
On 02/01/2014 11:17 AM, atchley tds.net wrote: On Fri, Jan 31, 2014 at 11:27 AM, Prentice Bisbal mailto:prentice.bis...@rutgers.edu>> wrote: Alex, On 01/30/2014 07:15 PM, Alex Chekholko wrote: Hi Prentice, Today, IB probably means Mellanox, so why not get their pre-