September 1998
Intermediate to advanced
1056 pages
55h 28m
English
Content preview from Parallel Computer Architecture
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11.2 Latency Tolerance in Explicit Message Passing 847
Table 11.1 Number of One-Word Microbenchmark Messages Outstanding at a Time
as Limited by i/o Ratio and Rate at Which Messages Can Be issued to the
Network
Machine
TMC CM-5
Intel
Paragon
Meiko
CS-2
Qne?Way
Network :
Transaction
L/2o Msgs/ms
2.12 250
2.72 131
3.28 74
Remote Read
I/o Msgs/ms
1.75 161
5.63 133
8.35 63.3
Machine
NOW-Ultra
CRAYT3D
SGI
Origin
One-Way
Network
Transaction
L/2o Msgs/ms
1.79 172
1.00 345
Remote Read .
i/o Msgs/ms'
1.77 127
1.13 2,500
5,000
L here is the total latency of a message, including overhead. Two types of operations are considered: a
one-word,
round-trip
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