Greetings Neil.
In addition to what George and Mitch said:
Open MPI will not require a full set of daemons like LAM/MPI does. You
can have a full set if you wish, especially in environments where it
makes sense (e.g., rsh/ssh, where there is little other infrastructure
to do proper distribut
Neil,
Long time, no see! Greetings from rainy San Francisco to rainy Reading!
Open MPI is designed to be thread-safe using pthread facilities with
relatively fine grain access to critical regions. I haven't tried to mix Open
MPI with OpenMP, but from what I understand of OpenMP, I believe it sh
Neil,
Open-MPI support all thread models defined by the MPI standard if they are
available on the target system. Few years ago I did some work with MPI and
OpenMP and locking mechanism of existing MPI implementations was the
performance killer. We have work hard to remove this bottleneck on
O
Hi,
Two queries.
1) Is Open MPI thread-safe (assuming the system-supplied libraries are
thread-safe)? In particular will it be possible to call MPI routines
from OpenMP regions and will it be possible to use OpenMP directives
within MPI tasks?
2) Does Open MPI use the same mechanism as LAM-
