RT info:eu-repo/semantics/conferenceObject
T1 A New GCC Plugin-Based Compiler Pass to Add Support for Thread-Level Speculation into OpenMP
A1 Aldea, Sergio
A1 Estébanez, Álvaro
A1 Llanos Ferraris, Diego Rafael
A1 González Escribano, Arturo
K1 Informática
K1 Thread-Level Speculation
K1 TLS
K1 OpenMP
K1 Source code generation
K1 GCC plugin
K1 1203 Ciencia de Los Ordenadores
K1 3304 Tecnología de Los Ordenadores
AB In this paper we propose a compile-time system that adds support for Thread-Level Speculation (TLS) into OpenMP. Our solution augments the original user code with calls to a TLS library that handles the speculative parallel execution of a given loop, with the help of a new OpenMP speculative clause for variable usage classification. To support it, we have developed a plugin-based compiler pass for GCC that augments the code of the loop. With this approach, we only need one additional code line to speculatively parallelize the code, compared with the tens or hundreds of changes needed (depending on the number of accesses to speculative variables) to manually apply the required transformations. Moreover, the plugin leads to a faster performance than the manual parallelization.
PB Springer
SN 978-3-319-09873-9
YR 2014
FD 2014
LK https://uvadoc.uva.es/handle/10324/70517
UL https://uvadoc.uva.es/handle/10324/70517
LA eng
NO European Conference on Parallel Processing, Euro-Par 2014, 25-29 August, Porto, Portugal.
NO Producción Científica
DS UVaDOC
RD 15-ene-2025