Decoupling Computation and Result Write-Back for Thread-Level Parallelization

• DOI: 10.4018/ijsi.2020070102
• Publication Date: 2020-05-28T14:46:05Z
• Authors: Hiroaki Hirata; Atsushi Nunome
• Keywords: Speculative multithreading; Abort; Automatic parallelization; Decoupling (probability); Speculative execution

Thread-level speculation (TLS) is an approach to enhance the opportunity of parallelization programs. A TLS system enables multiple threads begin execution tasks in parallel even if there may be dependency between tasks. When any violation detected, enforces violating thread abort and re-execute task. So, frequency aborts one factors that damage performance speculative execution. This article proposes a new technique named code shelving, which not need abort. It available only for but also as flexible synchronization conventional non-speculatively The authors implemented shelving on their called Speculative Memory (SM) verified effectiveness shelving.