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2008
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Pangaea: a tightly-coupled IA32 heterogeneous chip multiprocessor

9 years 27 days ago
Pangaea: a tightly-coupled IA32 heterogeneous chip multiprocessor
Moore’s Law and the drive towards performance efficiency have led to the on-chip integration of general-purpose cores with special-purpose accelerators. Pangaea is a heterogeneous CMP design for non-rendering workloads that integrates IA32 CPU cores with non-IA32 GPU-class multicores, extending the current state-of-the-art CPU-GPU integration that physically “fuses” existing CPU and GPU designs. Pangaea introduces (1) a resource repartitioning of the GPU, where the hardware budget dedicated for 3Dspecific graphics processing is used to build more generalpurpose GPU cores, and (2) a 3-instruction extension to the IA32 ISA that supports tighter architectural integration and fine-grain shared memory collaborative multithreading between the IA32 CPU cores and the non-IA32 GPU cores. We implement Pangaea and the current CPU-GPU designs in fully-functional synthesizable RTL based on the production quality RTL of an IA32 CPU and an Intel GMA X4500 GPU. On a 65 nm ASIC process technol...
Henry Wong, Anne Bracy, Ethan Schuchman, Tor M. Aa
Added 31 May 2010
Updated 31 May 2010
Type Conference
Year 2008
Where IEEEPACT
Authors Henry Wong, Anne Bracy, Ethan Schuchman, Tor M. Aamodt, Jamison D. Collins, Perry H. Wang, Gautham N. Chinya, Ankur Khandelwal Groen, Hong Jiang, Hong Wang 0003
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