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ORBIT (Optimized R Byte code InterpreTer) is an extension of the GNU R VM, to perform aggressive removal of allocated objects and reduction of instruction path lengths in the GNU R VM via profile-driven specialization techniques. The ORBIT VM is fully compatible with the R language and is purely based on interpreted execution. It is a specialization JIT and runtime focusing on data representation specialization and operation specialization.

News

• Feb, 2014. Presentation at CGO2014. Slide

Members

• Haichuan Wang (http://web.engr.illinois.edu/~hwang154/)
• Peng Wu (http://pengwu.wordpress.com/)
• David Padua (http://polaris.cs.uiuc.edu/~padua/)

Publication

• Haichuan Wang, Peng Wu, David Padua. Optimizing R VM: Allocation Removal and Path Length Reduction via Interpreter-level Specialization. 2014 International Symposium on Code Generation and Optimization (CGO 2014). Feb. 2014, Orlando, FL, USA. ACM DL