1. Introduction

2. MPI Collective Communication Routines

2.1 Characteristics
2.2 Barrier Synchronization Routines
2.3 Data Movement Routines

2.3.1 Broadcast

2.3.2 Gather and Scatter

2.3.3 Allgather

2.3.4 Alltoall

2.4 Advanced Features

2.4.1 Gatherv and Scatterv

2.4.2 Allgatherv

2.4.3 Alltoallv

2.4.4 Alltoallw

2.5 Global Reduction Routines

3. New Information from Vendors

4. References