Version 1.0 Released on May 03, 2015 Introduction ============ Libfabric is a communication library that exports interfaces for fabric services to applications. Libfabric is the core component of the Open Fabrics Interfaces (OFI) framework. Libfabric has the following objectives: * High-performance: provide optimized software paths to hardware - Independent of hardware implementations * Scalable: targets support for millions of processes - Designed to reduce cache and memory footprint - Scalable address resolution and storage - Tight data structures * Application-centric - Interfaces co-designed with application developers and hardware vendors * Extensible - Easily adaptable to support future application needs OFI is being developed by the OFI Working Group (OFIWG) a subgroup of the OpenFabrics Alliance (OFA). Participation in OFIWG (pronounced o-fee-wig) is open to anyone, regardless of their membership in OFA. The goal of OFI and libfabric is to define interfaces that enable a tight semantic map between applications and underlying fabric services. Specifically, libfabric software interfaces have been co-designed with fabric hardware providers and application developers, with an initial focus on the needs of HPC users. OFI supports multiple interface semantics, is fabric and hardware implementation agnostic, and leverages and expands the existing RDMA open source community. For more information regarding the OFI project, please visit the OFIWG GitHub site: http://ofiwg.github.io/libfabric/ Support ======= OFI targets support for the Linux operating system. A reasonable effort is made to support all major, modern Linux distributions; however, validation is limited to the most recent 2-3 releases of RedHat Enterprise Linux (RHEL)and SUSE Linux Enterprise Server (SLES). OFI aligns its supported distributions with the most current OpenFabrics Enterprise Distribution (OFED) software releases. With the exception of the sockets provider, which is provided for development purposes, distro support for a specific provider is vendor specific. Libfabric will also run on OS-X, but OS X support is provided as a convenience for developers. Bugs, issues, or requests for feature enhancements may be made directly to the github issues list: https://github.com/ofiwg/libfabric/issues Additionally, users may post questions, comments, bugs, etc. to the OFIWG mailing list. (Don't be bashful. We don't bite.) ofiwg@lists.openfabrics.org Patches may be submitted using github (preferred) or posted to the OFIWG mail list. Building ======== To install from a libfabric source package run the following commands: ./configure && make && make install If building directly from the libfabric git tree, run './autogen.sh' before the configure step.