RDMA-Core: RDMA Core userspace libraries and drivers
Overview of package
| Package: | RDMA-Core |
|---|---|
| Description: | RDMA Core userspace libraries and drivers |
| For more information: | https://developer.nvidia.com/cuda-zone |
| Categories: | SoftwareDevelopment |
| License: | Unknown |
General Usage
RDMA-Core consists of the userspace componeents for the Linux kernel's drivers/infiniband subsytem. that are topology-aware and can be easily integrated into applications.
NCCL provides both collective communication and point-to-point send/receive primitives. It is not a full-blown parallel programming framework but rather a library focused on accelerating inter-GPU communication.
The following environmental variables have been defined:
- $NCCL_ROOT has been set to the root of the rdma-core installation
- $NCCL_LIBDIR points to the directory containing the libraries
- $NCCL_INCDIR points to the directory containing the header files
You will probably wish to use these by adding the following flags to your compilation command (e.g. to CFLAGS in your Makefile):
- -I$NCCL_INCDIR
and the following flags to your link command (e.g. LDFLAGS in your Makefile):
- -L$NCCL_LIBDIR -Wl,-rpath,$NCCL_LIBDIR
Available versions by cluster
This section lists the available versions of the package RDMA-Coreon the UMD HPC clusters.
Versions available on the Zaratan cluster
| Version | Module tags | CPU(s) optimized for | GPU ready? |
|---|---|---|---|
| system | system | zen2 | Yes |