Automatic Binding of Native Scientific Libraries to Java

. We have created a tool for automatically binding existing native C libraries to Java. With the aid of the Java--to--C Interface generating tool (JCI) the abundance of existing C and Fortran-77 scientific libraries can more easily be made available to Java programmers. We have applied JCI to bind MPI, PBLAS, ScaLAPACK and other libraries to Java. The approach of automatic binding ensures both portability across different platforms and full compatibility with the library specifications. In order to evaluate the performance of Java code which accesses native libraries, we have run Java versions of parallel benchmarks from the ParkBench suite. The results obtained on a distributed--memory IBM SP2 machine demonstrate the viability of our approach. 1 Introduction As a programming language, Java has the basic qualities needed for writing high--performance applications. With the maturing of compilation technology, such applications written in Java will doubtlessly appear. Since Java is a fa..