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| Challenges of the Petaflops era |
| Dresden 20 June 2008
Thomas Sterling talked about HPC opportunities in the PFlops era. The greatest challenge is to bring Petaflops to real world applications and problems. The exploitation of ubiquitous arithmetic and logic units now happens with multi- and many-core technologies, accelerators and GPU. There are new packaging techniques for higher density such as blades and 3D die stacking. The performance to cost advantage is also important with commodity clusters, attached accelerators, and so on.
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A dominant challenge is power consumption and pull the heat out. One cannot achieve performance growth without increases in clock rates and core complexity. The programming multi-core structures deliver an additional level of parallelism and all applications have to embrace parallel execution for performance gain. The programming heterogeneous structures will break the conventional programming models and deal with overheads, latencies and access patters.
Exposing and exploiting the massive programme concurrency is also necessary with billion-way parallelism required by the end of the next decade. We will have to continue the fabrication feature size reduction in vision of Moore's Law. The question of reliability needs elimination of hardware and software faults. |
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| Leslie Versweyveld |
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EnterTheGrid - Primeur Magazine
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