Python-rdma is an open source project that provides an interface to the Linux RDMA stack from the Python language.
t is an amalgamation of the functionality contained in the Open Fabrics Alliance packages libibmad, libibumad, libibverbs, libibnetdisc and infiniband-diags.
A new API was developed for this library that is designed to take advantage of Python features and provides a very uniform, integrated design across all the different aspects of IB and RDMA programming. It has a particular focus on ease of use and correct operation of the IB and RDMA protocol stacks.
Included is a re-implementation of a substantial portion of the
infinband-diags package. This re-implementation is functionally very similar
to infiniband-diags but also gains a number of new features:
- Uniform end port addressing. All commands support GID, port GUID, LID and DR path, even commands that are GMP based (like perfquery).
- Support for collecting information entirely from the SA via the
--saoption. - Consistently fetches path records for GMP communication (eg in perfquery) to support topologies with special requirements.
- Extensive MAD parallelization provides very good performance.
- All commands support a discovery cache file, which stores information in an efficient binary format.
- Much better debugging, including packet tracing down to full field decode.
- Minor new features to many tools, review section 8 of the manual for details.
The library itself is intended mainly for applications where quick development is more important that the highest performance, such as:
- IB manamagent software development
- RDMA test development
- Training and problem exploration
The module is written entirely in Python and only relies on external system libraries to provide ibverbs functionality.
Documentation
Review the documentation.
Watch the OFA 2011 presentation and read the slide deck.