Titanium Performance and Potential: An NPB Experimental Study

Titanium is an explicitly parallel dialect of JavaTM designed for high-performance scientific programming. It offers objectorientation, strong typing, and safe memory management in the context of a language that supports high performance and scalable parallelism. We present an overview of the language features and demonstrate their use in the context of the NAS Parallel Benchmarks, a standard benchmark suite of kernels that are common across many scientific applications. We argue that parallel languages like Titanium provide greater expressive power than conventional approaches, enabling much more concise and expressive code and minimizing time to solution without sacrificing parallel performance. Empirical results demonstrate our Titanium implementations of three of the NAS Parallel Benchmarks can match or even exceed the performance of the standard MPI/Fortran implementations at realistic problem sizes and processor scales, while still using far cleaner, shorter and more maintai...

• Type: Conference
• Year: 2005
• Where: LCPC
• Authors: Kaushik Datta, Dan Bonachea, Katherine A. Yelick
• Keywords: LCPC 2005, Nas Parallel Benchmarks, Parallel Dialect, Titanium