*/
namespace simgrid{
namespace smpi{
-int Coll_allreduce_smp_binomial_pipeline::allreduce(void *send_buf,
+int Coll_allreduce_smp_binomial_pipeline::allreduce(const void *send_buf,
void *recv_buf, int count,
MPI_Datatype dtype,
MPI_Op op, MPI_Comm comm)