This limit is controlled by several MCA variables. Contiguous segments
larger than the btl_openib_eager_limit will use the RDMA protocol (Get) if
mpi_leave_pinned is set and the RDMA RNDV (Put) protocol
otherwise. Both of these protocol pin the user buffer on both sides.
-Nathan
On Fri, May 23, 2
Hi,
Is my understanding correct?
While servicing MPI_Send using eager protocol over openib, there is a
data-size threshold below which it is preferred to copy the contents of the
user-buffer to a pre-pinned buffer instead of directly pinning down the
user-buffer. If this is correct, how does one d
