Editing Single system image (section)

===Process migration===
{{main|Process migration}}
Many SSI systems provide [[process migration]].<ref name=Smith1988>{{citation
 | last = Smith | first =  Jonathan M.
 | year = 1988
 | title = A survey of process migration mechanisms
 | journal = ACM SIGOPS Operating Systems Review
 | volume = 22
 | issue =  3
 | pages = 28–40
 | doi = 10.1145/47671.47673
 | url = http://www.cis.upenn.edu/~jms/svy-pm.pdf
| citeseerx =  10.1.1.127.8095
 | s2cid = 6611633
 }}</ref>
Processes may start on one [[Node (networking)|node]] and be moved to another node, possibly for [[Load balancing (computing)|resource balancing]] or administrative reasons.<ref group="note">for example it may be necessary to move long running processes off a node that is to be closed down for maintenance</ref>  As processes are moved from one node to another, other associated resources (for example [[Inter-process communication|IPC]] resources) may be moved with them.