InfiniBand explained - Stack Overflow
InfiniBand is a high-performance interconnect mainly used in HPC and AI clusters. Compared with Ethernet, it is designed from the ground up for low latency, high throughput, and lossless RDMA …
What is the difference between IPoIB and TCP over InfiniBand?
Dec 28, 2023 · IPoIB (IP-over-InfiniBand) is a protocol that defines how to send IP packets over IB; and for example Linux has an "ib_ipoib" driver that implements this protocol. This driver creates a …
tcpdump - Packet capture in RDMA? - Stack Overflow
Sep 26, 2012 · For Infiniband there is ibdump, however, depending on the Infiniband software you are using (open-source OFED vs. the proprietary Mellanox OFED) and the host channel adapter (HCA) …
Newest 'infiniband' Questions - Stack Overflow
Is it possible to use RDMA over native InfiniBand without IPoIB (using just guid or lid)? I have checked Infiniband addressing - host names to IB address without IBoIP and in RDMA Connection Manager ...
network programming - Unable to Receive Messages with InfiniBand …
Dec 29, 2024 · I am currently writing a sample program for RDMA communication using InfiniBand. The setup involves two servers, each running a single process. The goal is to send data from one server …
infiniband - What is the difference between OFED, MLNX OFED and the ...
Oct 30, 2019 · I'm setting up Infiniband networks, and I do not fully get the difference between the different software stacks. OFED https://www.openfabrics.org/ofed-for-linux/
infiniband - OpenMPI 4.1.1 There was an error initializing an ...
Sep 20, 2022 · Similar to the discussion at MPI hello_world to test infiniband, we are using OpenMPI 4.1.1 on RHEL 8 with 5e:00.0 Infiniband controller [0207]: Mellanox Technologies MT28908 Family …
Rdma infiniband cannot open hosts (iberror: discovery failed) Port ...
Jun 15, 2022 · I am facing an issue while configuring rdma and Infiniband on my two nodes. Both of these two nodes are connected and I have installed the recommended software libraries and …
infiniband - Setting max outstanding work requests to be put on a …
I'm not sure there's a deterministic and portable way to answer your question. In some devices, the device pose a limit on the work queue size, rather than the number of entries (e.g., Mellanox …
linux - MPI hello_world to test infiniband - Stack Overflow
Feb 5, 2022 · FWIW, btl/openib is a legacy component, and you should really use UCX. The logs indicate that Open MPI fails to use Infiniband via btl/openib and mtl/ofi (aka libfabric). Though that …