pub fn broadcast<C, T>(
world: &C,
root: i32,
root_value: Option<T>,
) -> Result<T, PlacementError>where
C: Communicator,
T: Serialize + DeserializeOwned,Expand description
Copies one root-owned value to every rank.
Every rank calls this collective with the same communicator and root. Only
the root supplies Some; every rank receives an owned value.