The ECho Event Delivery System

ECho is an event delivery middleware system developed at Georgia Tech. ECho is distinguished by efficient and flexible support for event typing and the ability to assign event handlers to specific threads for transparent support of both inter- and intra-process communication. ECho also introduces the concept of a "derived event channel." ECho uses dynamic code generation to implement derived event channels and exploit their ability to move user-level processing to remote locations. ECho is described in the following publications:

A Middleware Toolkit for Client-Initiated Service Specialization, Greg Eisenhauer, Fabian Bustamente and Karsten Schwan, Proceedings of the PODC Middleware Symposium - July 18-20, 2000. postscript, PDF
Event Services for High Performance Computing, Greg Eisenhauer, Fabian Bustamente and Karsten Schwan, Proceedings of High Performance Distributed Computing (HPDC-2000). postscript, PDF
JECho - Supporting Distributed High Performance Applications with Java Event Channels, Dong Zhou, Karsten Schwan, Greg Eisenhauer and Yuan Chen, To appear at Cluster2000, IEEE International Conference on Cluster Computing.
Remote Application-level Processing through Derived Event Channels in ECho, Greg Eisenhauer, Unpublished. postscript, pdf
ECho Event Delivery Middleware, Greg Eisenhauer, A two-page handout with a basic description of ECho. postscript, pdf
The ECho Event Delivery System, Greg Eisenhauer, Technical Report GIT-CC-99-08, College of Computing, Georgia Institute of Technology, Atlanta, GA 30332-0280. postscript, pdf Note: This is essentially a users guide for ECho.

ECho's supported platforms include: Sun Sparc SunOS 4.1, Sun Sparc Solaris 2.x, x86 Solaris 2.x, SGI MPIS Irix 5.x, SGI MIPS (32 and 64-bit) Irix 6.x, IBM RS6000 AIX 3.2, x86 Linux, and x86 Windows NT.

Getting ECho.

ECho source is built into the DataExchange release. The derived event channel support is not currently being distributed, but will be available soon.

Users within Georgia Tech can use full derived event channel support. Please see this document for information on building and using ECho. If you cannot use pre-built libraries, a complete distribution is available (gzip or compress).

Debugging ECho programs.

Some general questions about debugging ECho programs are answered in another document.

This material is based upon work supported by the National Science Foundation under Grant No. 9720167. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

This page is maintained by Greg Eisenhauer