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COMA:
cache-only memory architecture
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Data
migrates into local DRAM of CPUs where it
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is
being used
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Handles
very large working sets cleanly
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Replacement
from DRAM is messy: have to make
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sure someone
still has a copy
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Scope
for interesting OS/architecture hybrid
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System
slows down if total memory requirement
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approaches
RAM available, since space for
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replication
is reduced
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Examples:
DDM, KSR-1/2, rumours from
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IBM…
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