1 May
2014
1 May
'14
3:54 a.m.
On 30 April 2014 18:56, Rajeev Thakur <[email protected]> wrote:
It was probably done that way to avoid the need for memory allocation, but can you add a ticket in Trac and we will look at it.
https://trac.mpich.org/projects/mpich/ticket/2074
(For example, on one side of the intercommunicator sendbuf=1 byte, recvbuf=1 gigabyte; on the other side, sendbuf=1 gigabyte, recvbuf=1 byte)
For Allreduce, you cannot have 1 byte/ 1gigabyte at each side. -- Lisandro Dalcin --------------- CIMEC (UNL/CONICET) Predio CONICET-Santa Fe Colectora RN 168 Km 472, Paraje El Pozo 3000 Santa Fe, Argentina Tel: +54-342-4511594 (ext 1016) Tel/Fax: +54-342-4511169