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Why are there two compile backends?

April 26, 2017backends

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Why are there two compile backends?

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The X10 compiler can generate either C++ source code or Java source code. The two backends present different tradeoffs on different machines. In general, the C++ backend is currently more mature; the Java backend does not currently support execution across multiple JVMs. In the medium term, the backends will support different models of interoperability with other languages. In particular, the Java backend will support interoperability will Java code running on JVMs; the C++ backend will support interoperability with certain libraries for hardware accelerators and GPUs.