\begin{thebibliography}{10}

\bibitem{IBM-report3}
V.~Bala, J.~Bruck, R.~Cypher, P.~Elustondo, A.~Ho, C.-T. Ho, S.~Kipnis, and
  Marc Snir.
\newblock Ccl: A portable and tunable collective communication library for
  scalable parallel computers.
\newblock Technical report, {IBM} {T}. {J}. {W}atson {R}esearch {C}enter, 1993.
\newblock Preprint.

\bibitem{IBM-report4}
J.~Bruck, R.~Cypher, P.~Elustondo, A.~Ho, C.-T. Ho, S.~Kipnis, and Marc Snir.
\newblock Ccl: A portable and tunable collective communication library for
  scalable parallel computers.
\newblock Technical report, {IBM} {A}lmaden {R}esearch {C}enter, 1993.
\newblock Preprint.

\bibitem{mpi1}
J.~J. Dongarra, R.~Hempel, A.~J.~G. Hey, and D.~W. Walker.
\newblock A proposal for a user-level, message passing interface in a
  distributed memory environment.
\newblock Technical Report {TM}-12231, Oak Ridge National Laboratory, February
  1993.

\bibitem{chimp1}
Edinburgh Parallel Computing Centre, University of Edinburgh.
\newblock {\em {CHIMP} Concepts}, June 1991.

\bibitem{chimp2}
Edinburgh Parallel Computing Centre, University of Edinburgh.
\newblock {\em {CHIMP} Version 1.0 Interface}, May 1992.

\bibitem{IBM-EUI}
D.~Frye, R.~Bryant, H.~Ho, R.~Lawrence, and M.~Snir.
\newblock An external user interface for scalable parallel systems.
\newblock Technical report, {IBM}, May 1992.

\bibitem{parmacs1}
R.~Hempel.
\newblock The {ANL/GMD} macros ({PARMACS}) in fortran for portable parallel
  programming using the message passing programming model -- users' guide and
  reference manual.
\newblock Technical report, {GMD}, Postfach 1316, {D}-5205 {S}ankt {A}ugustin
  1, {G}ermany, November 1991.

\bibitem{parmacs2}
R.~Hempel, H.-C. Hoppe, and A.~Supalov.
\newblock A proposal for a {PARMACS} library interface.
\newblock Technical report, {GMD}, Postfach 1316, {D}-5205 {S}ankt {A}ugustin
  1, {G}ermany, October 1992.

\bibitem{Lusk-book}
Ewing Lusk, Ross Overbeek, et~al.
\newblock {\em Portable Programs for Parallel Processors}.
\newblock Holt, Rinehart and Winston, Inc., 1987.

\bibitem{Vertex}
{nCUBE} Corporation.
\newblock {\em {nCUBE} 2 Programmers Guide, r2.0}, December 1990.

\bibitem{express}
Parasoft {C}orporation.
\newblock {\em Express Version 1.0: A Communication Environment for Parallel
  Computers}, 1988.

\bibitem{NX-2}
Paul Pierce.
\newblock The {NX/2} operating system.
\newblock In {\em Proceedings of the Third Conference on Hypercube Concurrent
  Computers and Applications}, pages 384--390. ACM Press, 1988.

\bibitem{zipcode1}
A.~Skjellum and A.~Leung.
\newblock Zipcode: a portable multicomputer communication library atop the
  reactive kernel.
\newblock In D.~W. Walker and Q.~F. Stout, editors, {\em Proceedings of the
  Fifth Distributed Memory Concurrent Computing Conference}, pages 767--776.
  {IEEE} {P}ress, 1990.

\bibitem{zipcode2}
A.~Skjellum, S.~Smith, C.~Still, A.~Leung, and M.~Morari.
\newblock The {Z}ipcode message passing system.
\newblock Technical report, Lawrence {L}ivermore {N}ational {L}aboratory,
  September 1992.

\bibitem{walker92b}
D.~Walker.
\newblock Standards for message passing in a distributed memory environment.
\newblock Technical Report {TM}-12147, Oak {R}idge {N}ational {L}aboratory,
  August 1992.

\end{thebibliography}

.