It is because you are sending a "range" object and there is little bug in both
procedure.
I will fix it as soon as I may.
Just browse the source code and you will see on your own.
..
octave:3> typeinfo message
ans = sq_string
octave:4> message1 = ones(1,2)
message1 =
1 1
octave:5> typeinfo(message1)
ans = range
octave:6> message2 = ones(1,2) * 0.5
message2 =
0.50000 0.50000
octave:7> typeinfo(message2)
ans = range
Thanks
Andrea
--- Mer 26/5/10, Andrea Bressan <andrea.bres...@unipv.it> ha scritto:
Da: Andrea Bressan <andrea.bres...@unipv.it>
Oggetto: problem with ones and openmpi
A: octave-dev@lists.sourceforge.net
Cc: riccardocorrad...@yahoo.it
Data: Mercoledì 26 maggio 2010, 10:16
Hi all,
I 'm facing an odd behavior using MPI_Send with messages created with
ones. In particular if the message is created with
message=[1 1];
it is successfully delivered, but if it is created with
message=ones(1,2);
the communication fails. Both MPI_Send and MPI_Recv return MPI_SUCCESS,
but the received vector is
[](1x0).
I tested some variations of the aboves with Octave 3.2.4 and
openmpi_ext 1.0.1. The failing tests give the same result "[](1x0)".
message=[1 1]; %works
message=ones(1,2);% fails
message=zeros(1,2); %works
message=[ones(1,2)]; % works
message=ones(1,2)*0.5;% fails
message=ones(2,1); % works
message=ones(2,2); % works
message=rand(1,2); % works
Can you explain why this happens?
Andrea Bressan
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