Thanks George, i will try to find it.
for the second part, and if i read between the lines, that means a
collective operation cannot have non deterministic paths, such as
for (...) MPI_Irecv();
for (...) { MPI_Waitany(); ompi_op_reduce(); }
is that *really* prohibited ? i thought it was "on
There is a mechanism to select the collective algorithm upon communicator
creation. It is not using MPI_T (as this mechanism didn't exist at the
tuned conception), but it behave in a similar manner. You simply update an
MCA param (I do not remember the name and I'm not close to my computer),
and th
Folks,
i was thinking of using the MPI_T interface in order to try within the
same MPI test program *all* the available algo of a given collective.
That cannot currently be done because the mca parameter is registered with
{flag=0, scope=MCA_BASE_VAR_SCOPE_READONLY}
i made a proof of conc
