Multiprocessor systems-on-chip (MPSoC) are evolving into heterogeneous architectures based on one host processor plus many-core accelerators. While heterogeneous SoCs promise higher performance/watt, they are programmed at the cost of major code rewrites with low-level programming abstractions (e.g, OpenCL). We present a programming model based on OpenMP, with additional directives to program the accelerator from a single host program. As a test case, we evaluate an implementation of this programming model for the STMicroelectronics STHORM development board. We obtain near-ideal throughput for most benchmarks, very close performance to hand-optimized OpenCL codes at a significantly lower programming complexity, and up to 30× speedup versus host execution time.
Simplifying Many-Core-Based Heterogeneous SoC Programming with Offload Directives / Marongiu, Andrea; Capotondi, Alessandro; Tagliavini, Giuseppe; Benini, Luca. - In: IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS. - ISSN 1551-3203. - STAMPA. - 11:4(2015), pp. 957-967. [10.1109/TII.2015.2449994]
Simplifying Many-Core-Based Heterogeneous SoC Programming with Offload Directives
Marongiu Andrea;Capotondi Alessandro;
2015
Abstract
Multiprocessor systems-on-chip (MPSoC) are evolving into heterogeneous architectures based on one host processor plus many-core accelerators. While heterogeneous SoCs promise higher performance/watt, they are programmed at the cost of major code rewrites with low-level programming abstractions (e.g, OpenCL). We present a programming model based on OpenMP, with additional directives to program the accelerator from a single host program. As a test case, we evaluate an implementation of this programming model for the STMicroelectronics STHORM development board. We obtain near-ideal throughput for most benchmarks, very close performance to hand-optimized OpenCL codes at a significantly lower programming complexity, and up to 30× speedup versus host execution time.File | Dimensione | Formato | |
---|---|---|---|
07134757.pdf
Accesso riservato
Dimensione
1.75 MB
Formato
Adobe PDF
|
1.75 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris