According to this page:
http://techpubs.sgi.com/library/tpl/cgi-bin/getdoc.cgi?coll=linux&db=bks&fname=/SGI_EndUser/OMP_UG/ch02.html
multipipe is supposed to be downloadable here:
http://www.sgi.com/software/multipipe/
but, as is so often the case with the newly revitalized sgi, the link is dead...

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Project:
Movin' on up, toooo the east side
Plan:
World domination! Or something...