On Global Combine Operations 
-   Robert A. van de Geijn 
-  Department of Computer Sciences
-  University of Texas
-  Austin, TX 78712
 Abstract 
We discuss a hybrid strategy for implementing
global combine
operations on distributed memory
MIMD multicomputers.
A theoretical analysis is given and results from
its implementation on the Intel iPSC/860 are
reported.
Robert van de Geijn, ``On Global Combine Operations,''  Journal of Parallel
and Distributed Computing , 22 , pp. 324--328 (1994). 
Robert van de Geijn,
``On Global Combine Operations,'' 
LAPACK Working Note 29,  University of Tennessee, 
Technical Report CS-91-129, April, 1991.