external memory algorithms and data structures
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memoryInternalmemory
Internalmemory
CPU CPUCPU
D 1DD
Internal
1D
D
Internal memory
CPU
Interconnection network
(a) (b)
D
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bc bc
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a ba ba b a
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abaabbabba
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Number of rectangles
"QPBSM""MPBSM"
"SSSJ"
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