On 05/23/2012 03:05 PM, Jeff Squyres wrote:
On May 23, 2012, at 6:05 AM, Simone Pellegrini wrote:
If process A sends a message to process B and the eager protocol is used then I
assume that the message is written into a shared memory area and picked up by
the receiver when the receive
On May 23, 2012, at 7:05 AM, Jeff Squyres wrote:
> On May 23, 2012, at 6:05 AM, Simone Pellegrini wrote:
>
>>> If process A sends a message to process B and the eager protocol is used
>>> then I assume that the message is written into a shared memory area and
>>> picked up by the receiver
On May 23, 2012, at 6:05 AM, Simone Pellegrini wrote:
>> If process A sends a message to process B and the eager protocol is used
>> then I assume that the message is written into a shared memory area and
>> picked up by the receiver when the receive operation is posted.
Open MPI has a few
I think I found the answer to my question on Jeff Squyres blog:
http://blogs.cisco.com/performance/shared-memory-as-an-mpi-transport-part-2/
However now I have a new question, how do I know if my machine uses the
copyin/copyout mechanism or the direct mapping?
Assuming that I am running on
Dear all,
I would like to have a confirmation on the assumptions I have on how
OpenMPI implements the rendezvous protocol for shared memory.
If process A sends a message to process B and the eager protocol is used
then I assume that the message is written into a shared memory area and
picked
