xbt_assert(isfinite(computation_amount[i]), "computation_amount[%d] is not finite!", i);
for (j = 0 ; j < host_nb ; ++j) {
xbt_assert(isfinite(communication_amount[i + host_nb * j]),
xbt_assert(isfinite(computation_amount[i]), "computation_amount[%d] is not finite!", i);
for (j = 0 ; j < host_nb ; ++j) {
xbt_assert(isfinite(communication_amount[i + host_nb * j]),