Details

Autor(en) / Beteiligte

• Venkat, Ashish
• Tullsen, Dean

Titel

Harnessing ISA diversity: design of a heterogeneous-ISA chip multiprocessor

Ist Teil von

• 2014 ACM/IEEE 41st International Symposium on Computer Architecture (ISCA), 2014, p.121-132

Ort / Verlag

IEEE Press

Erscheinungsjahr

2014

Link zum Volltext

• Volltext

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• Heterogeneous multicore architectures have the potential for high performance and energy efficiency. These architectures may be composed of small power-efficient cores, large high-performance cores, and/or specialized cores that accelerate the performance of a particular class of computation. Architects have explored multiple dimensions of heterogeneity, both in terms of micro-architecture and specialization. While early work constrained the cores to share a single ISA, this work shows that allowing heterogeneous ISAs further extends the effectiveness of such architectures This work exploits the diversity offered by three modern ISAs: Thumb, x86-64, and Alpha. This architecture has the potential to outperform the best single-ISA heterogeneous architecture by as much as 21%, with 23% energy savings and a reduction of 32% in Energy Delay Product.