Module mpi::point_to_point

Point to point communication

Endpoints of communication are mostly described by types that implement the Source and Destination trait. Communication operations are implemented as default methods on those traits.

Unfinished features

• 3.2.6: MPI_STATUS_IGNORE
• 3.6: Buffer usage, MPI_Buffer_attach(), MPI_Buffer_detach()
• 3.9: Persistent requests, MPI_Send_init(), MPI_Bsend_init(), MPI_Ssend_init(), MPI_Rsend_init(), MPI_Recv_init(), MPI_Start(), MPI_Startall()

Modules

traits

Point to point communication traits

Structs

Message

Describes a pending incoming message, probed by a matched_probe().

ReceiveFuture

Will contain a value of type T received via a non-blocking receive operation.

Status

Describes the result of a point to point receive operation.

Traits

Destination

Something that can be used as the destination in a point to point send operation

MatchedReceiveVec

Receive a previously probed message containing multiple instances of type Msg into a Vec.

Source

Something that can be used as the source in a point to point receive operation

Functions

send_receive

Sends msg to destination and simultaneously receives an instance of R from source.

send_receive_into

Sends the contents of msg to destination and simultaneously receives a message from source into buf.

send_receive_into_with_tags

Sends the contents of msg to destination tagging it sendtag and simultaneously receives a message tagged receivetag from source into buf.

send_receive_replace_into

Sends the contents of buf to destination and simultaneously receives a message from source and replaces the contents of buf with it.

send_receive_replace_into_with_tags

Sends the contents of buf to destination tagging it sendtag and simultaneously receives a message tagged receivetag from source and replaces the contents of buf with it.

send_receive_with_tags

Sends msg to destination tagging it sendtag and simultaneously receives an instance of R tagged receivetag from source.