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(21) MPI Collective Communication Modes |
MPI_Function |
Function
Description |
MPI_Bcast |
Broadcast a message from on
process to all others |
MPI_Barrier |
blocks until all processes have
reached this routine |
MPI_Reduce |
Reduce values from all processes
to a single value (add,mult, min, max, etc.) |
MPI_Gather |
Gathers together values from a
group of processes |
MPI_Scatter |
Sends data from process to the
other processes in a group |
MPI_Allgather |
Gathers data from all tasks and
distributes it to all |
MPI_Allreduce |
Reduces values from all
processes and distributes the result back to all processes |
mpi_comm_modes2.src last modified Feb 14, 2011 | Introduction | Table of Contents (frame/no frame) |
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