POSH: a TLS compiler that exploits program structure

As multi-core architectures with Thread-Level Speculation (TLS) are becoming better understood, it is important to focus on TLS compilation. TLS compilers are interesting in that, while they do not need to fully prove the independence of concurrent tasks, they make choices of where and when to generate speculative tasks that are crucial to overall TLS performance. This paper presents POSH, a new, fully automated TLS compiler built on top of gcc. POSH is based on two design decisions. First, to partition the code into tasks, it leverages the code structures created by the programmer, namely subroutines and loops. Second, it uses a simple profiling pass to discard ineffective tasks. With the code generated by POSH, a simulated TLS chip multipro

• Type: Conference
• Year: 2006
• Where: PPOPP
• Authors: Wei Liu, James Tuck, Luis Ceze, Wonsun Ahn, Karin Strauss, Jose Renau, Josep Torrellas
• Keywords: Distributed And Parallel Computing, Overall Tls Performance, PPOPP 2006, TLS Compilation, Tls Compiler