Brian Barrett 93a2f31932 Use a recursive halving communication algorithm similar to the one used by ... MPICH2 for "small" commutative operations in the reduce_scatter basic implementation. "small" is currently pretty big, as it doesn't take much to beat reduce/scatterv. Need to do much more than this for better all around performance of MPI_Reduce_scatter, but this was enough to solve the problems I was having. This commit was SVN r13348.		2007-01-29 19:29:35 +00:00
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allocator	Remove unneeded PARAM_INIT_FILE variable in configure.params files used by	2007-01-08 03:44:22 +00:00
bml	- Reduce the amount of warnings with -Wshadow -- mainly due to	2007-01-19 19:48:06 +00:00
btl	Add in the hostname to the BTL_* output macros so that you can tell on	2007-01-25 14:02:54 +00:00
coll	Use a recursive halving communication algorithm similar to the one used by	2007-01-29 19:29:35 +00:00
common	Take into account constants that in the cray headers are defined different than in the portals spec.	2007-01-25 18:32:47 +00:00
io	Remove unneeded PARAM_INIT_FILE variable in configure.params files used by	2007-01-08 03:44:22 +00:00
mpool	The mpi_leave_pinned and mpi_leave_pinned_pipeline MCA parameters were	2007-01-21 14:02:06 +00:00
mtl	oops, ".", not "->", copy error...	2007-01-24 19:16:46 +00:00
osc	Start long message send as soon as possible, to minimze ack time for the receive,	2007-01-25 23:07:03 +00:00
pml	- Minor bugfixes and removed compiler warnings	2007-01-28 19:52:09 +00:00
rcache	Add explicit conversions.	2007-01-24 00:49:08 +00:00
topo	Remove unneeded PARAM_INIT_FILE variable in configure.params files used by	2007-01-08 03:44:22 +00:00