Rixner, Scott2009-06-042009-06-042005Majumder, Supratik. "High-performance MPI libraries for Ethernet." (2005) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17854">https://hdl.handle.net/1911/17854</a>.https://hdl.handle.net/1911/17854A MPI library performs two tasks---computation on behalf of the application, and communication in the form of sending and receiving messages among processes forming the application. Efficient communication is key to a high-performance MPI library, and the use of specialized interconnect technologies has been a common way to achieve this goal. However, these custom technologies lack the portability and simplicity of a generic communication solution like TCP over Ethernet. This thesis first shows that even though TCP is a higher overhead protocol than UDP, as a messaging medium it performs better than the latter, because of library-level reliability overheads with UDP. Then, the thesis presents a technique to separate computation and communication aspects of a MPI library, and handle each with the most efficient mechanism. The results show a significant improvement in performance of MPI libraries with this technique; bringing Ethernet closer to the specialized networks.126 p.application/pdfengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.ElectronicsElectrical engineeringComputer scienceThesisTHESIS E.E. 2005 MAJUMDER