[Beowulf] Java vs C++ for interfacing to parallel library
Jonathan.Ennis-King at csiro.au
Wed Aug 16 23:56:10 PDT 2006
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Does anyone have experience writing parallel Java code (using MPI) with
calls to C libraries which also use MPI? Is this possible/sensible? Is
there a big performance hit relative to doing the same in C++?
I'm considering writing some parallel code to do fluid flow in porous
media, the heart of which is solving systems of sparse linear equations.
There are some good libraries in C which provide the parallel solver
(e.g. PETSC), but I'm trying to resolve which language to use for my
code. The choice is between C++ and Java, and although I'm favouring
Java at present, I'm not sure about its performance in this context.
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