Advanced Computer Architecture Chapter 7.4
NPACI
Blue Horizon, San Diego Supercomputer Center
144 eight-processor SMP High Nodes
perform the primary compute functions.
12 two-processor SMP High Nodes perform
service functions.
1,152 Power3 processors in the compute
nodes run at 375 MHz. Each processor has a peak performance
of 1.500 Mflops (millions of floating-point operations
per second)
576 gigabytes of total system memory,
at 4 GB per compute node
5.1 terabytes -- 5,100 gigabytes --
of associated disk
42 towers,
or frames, house the compute and
service nodes. Four racks house
the disk.
1,500 square feet
Programmed using MPI (“Message Passing Interface”)