Gelato Research Initiatives at NCSU

• funded by: Gelato.org
• donations: HP Itanium2 Servers
• PI: Frank Mueller

Gelato-related projects at NCSU provide tools to analyze and tune the performance of memory systems for the IA64. Examples include:

• A hardware-assisted approach to support first-touch page placement on a large-scale Itanium-2 ccNUMA SMP, the SGI Altix; publications:
  • PPoPP'06
• Exploration of capabilities for the online selection of parallelizing optimizations. This work builds on our experience with hardware and software tracing for optimizing the memory hierarchy as well as reducing cache coherence traffic; publications:
  • CGO'03 paper on the METRIC framework (uniprocessor)
  • ICS'04 paper on ccSim (coherence traffic analysis in SMPs using ccSim)
  • ICS'05 paper (coherence traffic tracing via IA64 PMU hardware support)
• Soft error detection techniques
  TBA

• CAREER

• funded by: Gelato.org
• donations: several IA64s
• PI: Tom Conte

Another Gelato-related project at NSU focuses on the implementation (in GCC) of an architecture-independent, aggressive global instruction scheduler based on Treegions. It also presents a technique for efficiently tail duplicating treegions considering the tradeoff between codes size and ILP.

More information: Treegion scheduling in GCC