Support for Thread-Level Speculation into OpenMP

– In-depth knowledge of the problem. – Understanding of the underlying architecture. – Knowledge on the parallel programming model. • OpenMP allows to parallelize code “avoiding” these requirements. • Compilers’ automatic parallelization only proceed when there is no risk. • Thread-Level Speculation (TLS) can extract parallelism when a compile-time dependence analysis can not guarantee that the code is safely parallelizable. • We have already developed a TLS runtime library. • Current goal: To automatically transforms loops written in OpenMP syntax to benefit from speculative parallelization.