Sorry for the delay in replying.
I don't see an immediate reason why this would happen, but you might want to
double/triple check the count parameters that you are sending. Are you 100%
sure that they are correct?
It might also be worth checking that you're sending in the right buffer pointer
Hello
In a code written in Fortran, I have a problem with this part :
if (num_node == 0) then
...
else
down_node = num_node-1
! send to down recive from down
CALL MPI_SENDRECV(tab1(3 :4,:,:), size( tab1(3 :4, : ,:)), &
& MPI_REAL8, down_node, 101, tab1(1:2, : ,:), size(tab1(1:2, : ,
