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Computational models of the physical world. Cortical bone. Trabecular bone. Social network analysis (1993). Co-author graph from 1993 Householder symposium. Social network analysis ( 2013). Facebook graph: > 1,000,000,000 vertices . Parallel Computers Today.

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computational models of the physical world
Computational models of the physical world

Cortical bone

Trabecular bone

social network analysis 1993
Social network analysis (1993)

Co-author graph from 1993 Householdersymposium

social network analysis 2013
Social network analysis (2013)

Facebook graph: > 1,000,000,000 vertices

parallel computers today
Parallel Computers Today

Oak Ridge / Cray Titan: 17.6 PFLOPS

60-processor

Intel Xeon Phi

1 TFLOPS

Nvidia K20X GPU

1.3 TFLOPS

  • TFLOPS = 1012 floating point ops/sec
  • PFLOPS = 1,000,000,000,000,000 / sec
slide8
Top 500 List

http://www.top500.org/list/2012/11/100

  • Graph 500 List

http://www.graph500.org/Results.html

top 500 list november 2012

U

A

L

Top 500 List (November 2012)

P

=

x

Top500 Benchmark:

Solve a large system of linear equations by Gaussian elimination

graph 500 list november 2012

2

1

4

5

7

6

3

Graph 500 List (November 2012)

Graph500 Benchmark:

Breadth-first searchin a large power-law graph

floating point vs graphs november 2012

U

A

L

Floating-Point vs. Graphs, November 2012

15.3Terateps

17.6 Petaflops

P

=

x

2

1

4

5

7

6

3

17.6 Peta / 15.3 Tera is about 1150.

triton memory hierarchy
Triton memory hierarchy

Node

Chip

Chip

Proc

Proc

Proc

Proc

Proc

Proc

Proc

Proc

Cache

Cache

Cache

Cache

Cache

Cache

Cache

Cache

L2 Cache

L2 Cache

L2 Cache

L2 Cache

L2 Cache

L2 Cache

L2 Cache

L2 Cache

L3 Cache

L3 Cache

Node Memory

<- Myrinet Interconnect to Other Nodes ->