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SGI Contributions to Supercomputing by 2010

• Steve Reinhardt
• Director of Engineering
• spr_at_sgi.com

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Supercomputing Aspects of SGI
Visualization
HPC

• Scalable servers and superclusters
• SGI Origin family
• SGI Altix 3000 family
• SGI NUMAflex

• VAN
• Deliver images wherever the users are
• Enable collaboration

Data Access

• Deliver data wherever the users are
• CXFS/WAN demo at SC02
• Each server reads directly, at channel speeds
• Biggest installed configuration .5PB

NOTE Noenterprisereferences
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SGI in HPC

• Memory is unifying theme
• globally addressable up to O(PB)
• incorporating varied processing types
• latency (-gt 500ns for 10KP)
• bandwidth (local stride-1 BF -gt 2.0
  local gather/scatter BF .5-1.0
  remote bisection BW BF -gt .3)
• Sustained performance
• differentiated scaling (latency bandwidth)
• better memory interface
• new synchronization substrate
• Raise the level of programming abstraction
• UPC/CAF (near-term)
• parallel Matlab (radical)

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SGI in HPC

• SGI Origin family
• MIPS processors, Irix OS
• exploit low power consumption, ISA control
• SGI Altix family
• IPF processors, Linux OS
• exploit SGI interconnect, with industry-standard
  ISA and rapid OS maturation

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Balancing High Innovation and Profitability
low Profitability high
low Differentiation high
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System / Component Differentiation
Processor
Memory
Interconnect
OS
System Cost
System Value
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Ideal Differentiation
Processor
Memory
Interconnect
OS
System Cost
System Value
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SGI Origin series
Processor
Memory
Interconnect
OS
System Cost
System Value
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Quadrics cluster
Processor
Memory
Interconnect
OS
System Cost
System Value
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IBM SP3 system
Processor
Memory
Interconnect
OS
System Cost
System Value
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SGI Altix system
Processor
Memory
Interconnect
OS
System Cost
System Value
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STREAM Triad Results

• World-record result for a µP-based system fourth
  overall
• .8 BF (6.4GB/s shared by 2x4GF processors)
• Single kernel NUMA placement support in Linux

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Interconnect Scaling
MPI bandwidth versus distance (MB/s)
Comingsoon
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Altix 3000 Throughput Performance
Throughput of 4 jobs, each 8P, crash
application System Altix 3000, 32P, 64GB, XVM,
TP900
Individual jobs in the throughput mix are between
0.4 and 1.8 slower than the standalone case
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Summary SGI for HPC

• Long-term directions
• Memory globally addressable, high BW, low
  latency
• Strong delivered performance
• differentiated scaling (latency bandwidth)
• better memory interface
• new synchronization substrate
• Raise the level of programming abstraction
• UPC/CAF (near-term) parallel Matlab (radical)
• Near-term deliverables
• Altix 3000 system
• distinguished performance
• rapidly maturing Open Source software base

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