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Multiple Xeon Phi + OFED 3.18.1 network problem

Anders_H_
Beginner
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Hi,

I have a machine with 4 Xeon Phi cards that I'd like to run in native mode with fast communication through the OFED stack. I am running RHEL 6.5 and I have installed OFED 3.18.1 which was released ~1 week ago. 

Standard network settings will set up IPs:

Host: 172.31.x.254
mic0: 172.31.1.1
mic1: 172.31.2.1
mic2: 172.31.3.1
mic3: 172.31.4.1

With OFED installed, I also have (from ifconfig)
mic0:ib   Link encap:Ethernet  HWaddr 4C:79:BA:20:0B:63
          inet addr:192.0.2.100  Bcast:0.0.0.0  Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:64512  Metric:1
virbr0    Link encap:Ethernet  HWaddr 52:54:00:6A:65:FC
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          + more

I am able to communicate between the host and mic0 through 192.0.2.100 and 192.0.2.101 (ib, both ways), but the other 3 cards don't work this way.

How do I set up this communication so it works with all cards?


Anders

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