Super User
Super User

Questions tagged [infiniband]

Infiniband is an interconnect commonly used supercomputers or between servers.

Infiniband is an interconnect commonly used supercomputers or between servers. Alternative network transport technologies include Fibre channel and Ethernet.

7 questions
2
votes
0 answers

NFSoRDMA support using MLNX_OFED and Linux Kernel 4.4

We are trying to use the latest MLNX_OFED v4 with SLES12 SP3 and Kernel version 4.4.73-5. The MLNX OFED v4 package does not support RDMA (for some reason this was dropped). We tried to download the source package and build it. The installer script…
cppcoder
  • 121
  • 2
1
vote
0 answers

Connecting two desktops by an infiniband interconnect

I am a scientist working in a high performance computing project(the computational programming aspect) and I have no idea of networking or networking hardware required to answer my question. A professor friend of mine who works in HPC gave me the…
user498353
1
vote
0 answers

Ubuntu 20.04 LTS, netplan: Setup LACP for two InfiniBand interfaces?

I've been asked to setup a bonded InfiniBand interface (LACP) on a Ubuntu server running 20.04 LTS and currently configured with netplan. I've searched the topic, but no real good answer on how to set it up using netplan. Is it even supported? I'm…
MagNJ
  • 11
  • 1
1
vote
0 answers

IPoIB with Netem (Latency emulation) Poor performance

I have to emulate a wide area network. My setup contains two servers with MT27500 Family [ConnectX-3] Infiniband cards. Default latency between both nodes is ~0.4ms and iperf test shows throughput of 4Gbps per iperf connection. I was able to get max…
Khayam Gondal
  • 111
1
vote
1 answer

InfiniBand RDMA: Do you need the RDMA Connection Manager?

When doing RDMA transfers over InfiniBand, is the RDMA Connection Manager required? (Also, are all calls with the prefix rdma_ related to the RDMA Connection Manager?) Also, there are no appropriate tags for this since I cannot create rdma or…
iAdjunct
  • 1,672
0
votes
1 answer

If two container are using InfiniBand one the same host, will data still occupy IB bandwidth?

I'm trying to do some enhancement on the scheduling for distributed applications. And I'd like to confirm whether using InfiniBand one the same host will occupy IB bandwidth?
Klaus Ma
  • 105
0
votes
0 answers

Layer 3 software bridge

I have several Ethernet ports connected with a bridge in Ubuntu 18.04. Is there an equivalent virtual interface that works at Layer 3? I added an Infiniband card and want to connect IPoIB traffic to the main network.
chew socks
  • 383