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% Registration Clusterproc; Linux kernel Support for
% Clusterwide Process Management
% Bruce J. Walker (bruce.walker@hp.com)
There are several kernel-based clusterwide
process management implementations available
today, each of which provides different
semantics and capabilities (OpenSSI,
openMosix, bproc, Kerrighed, etc.). We present
a set of hooks to allow various installable
kernel module implementations with a high
degree of flexibility and virtually no
performance impact. Optional capabilities that
can be implemented via the hooks include:
clusterwide unique pids, single, init,
heterogeneity, transparent visibility and
access to any process from any node, ability
to distribute processes at exec or fork or
thru migration, file inheritance and full
controlling terminal semantics, node failure
cleanup, clusterwide \ident{/proc/<pid>},
checkpoint/restart and scale to thousands of
nodes. In addition, we describe an
OpenSSI-inspired implementation using the
hooks and providing all the features described
above.
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