ce7b3113f6
- rename ompi_coll_base_reduce_scatter_block_basic to more self descriptive ompi_coll_base_reduce_scatter_block_basic_linear - fix the description of the coll_tuned_reduce_scatter_block_algorithm MCA param this fixes and documents previous open-mpi/ompi@0e8b35b615 MPI_Reduce_scatter_block used to be implemented by the coll/basic module only. A new algo (recursive doubling) was recently introduced and can be used via the coll/tuned module, but we never intended to make it the default algo. In order to "restore" the previous default, the initial algo was moved from coll/basic to coll/base, and is now used by default by coll/tuned. Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>