T i-PETSc: Integrating Titanium with PETSc

Titanium is an object-oriented, explicitly parallel programming language for scientific computing. Because Titanium is a novel language, it lacks the rich collection of libraries available for high performance C and Fortran programming. PETSc is a suite of data structures and routines for the scalable parallel solution of problems modeled by partial differential equations. We describe T i-PETSc, a Titanium interface to the PETSc library suite. Our design balances the need for efficiency against desires for expressiveness and ease-of-use. A collection of microand application benchmarks quantify the costs of the cross-language binding, with implications for future optimization needs and for language, library, and system design.