TY - GEN
T1 - Data-management directory for OpenMP 4.0 and OpenACC
AU - Jaeger, Julien
AU - Carribault, Patrick
AU - Pérache, Marc
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Today's trend to use accelerators in heterogeneous systems forces a paradigm shift in programming models. The use of low-level APIs for accelerator programming is tedious and not intuitive for casual programmers. To tackle this problem, recent approaches focused on high-level directive-based models, with a standardization effort made with OpenACC and the directives for accelerator on OpenMP 4.0 release candidate. The pragmas for data management induce some coherence issues in the accelerator memory for code correctnesse. To address this issue, we propose the design for a directory, along with a reduced runtime ABI, to handle correctly data management in these standards. Our design fits a multi-Accelerator system. Also, with our directory, we propose a way to handle correctly pragmas on partially overlapping data intervals.
AB - Today's trend to use accelerators in heterogeneous systems forces a paradigm shift in programming models. The use of low-level APIs for accelerator programming is tedious and not intuitive for casual programmers. To tackle this problem, recent approaches focused on high-level directive-based models, with a standardization effort made with OpenACC and the directives for accelerator on OpenMP 4.0 release candidate. The pragmas for data management induce some coherence issues in the accelerator memory for code correctnesse. To address this issue, we propose the design for a directory, along with a reduced runtime ABI, to handle correctly data management in these standards. Our design fits a multi-Accelerator system. Also, with our directory, we propose a way to handle correctly pragmas on partially overlapping data intervals.
UR - https://www.scopus.com/pages/publications/84958527905
U2 - 10.1007/978-3-642-54420-0_17
DO - 10.1007/978-3-642-54420-0_17
M3 - Conference contribution
AN - SCOPUS:84958527905
SN - 9783642544194
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 168
EP - 177
BT - Euro-Par 2013
PB - Springer Verlag
T2 - 19th International Conference on Parallel Processing Workshops, Euro-Par 2013 - BigDataCloud, DIHC, FedICI, HeteroPar, HiBB, LSDVE, MHPC, OMHI, PADABS, PROPER, Resilience, ROME, and UCHPC 2013
Y2 - 26 August 2013 through 27 August 2013
ER -