MRNet: A Multicast/Reduction Network

This page contains information about version 4.1.0 of the MRNet project. This version was released in March 2014.

MRNet v4.1.0 highlights

• Decrease in packet transmission latency
• Improved robustness of shutdown in cases of abnormal termination on CrayXT platforms
• Removal of race conditions in MRNet startup in backend attach mode.
• Introduction of environmental variables to control timeout delays of both topology update streams and events (MRNET_TOPOLOGY_UPDATE_TIMEOUT_MSEC and MRNET_EVENT_WAIT_TIMEOUT_MSEC respectively)
• Build system changes for increase robustness
• Fixed compatibility with later versions of GCC (4.8+)
• Support for compiling MRNet using the C++ 2011 option in GCC
• Numerous additional bug fixes and enhancements

Documentation

• README
• MRNet API Programmer's Guide, Release 4.1.0 (HTML, PDF)

Distribution

• MRNet 4.1.0 Source (tar.gz)
• MRNet 4.1.0 Windows Binaries (zip)
• MRNet 4.1.0 Windows Build (zip)