mpi4py.MPI.Intracomm

class mpi4py.MPI.Intracomm

Bases: Comm

Intracommunicator.

static __new__(cls, comm=None)
Parameters:

comm (Intracomm | None) –

Return type:

Self

Methods Summary

Accept(port_name[, info, root])

Accept a request to form a new intercommunicator.

Cart_map(dims[, periods])

Determine optimal process placement on a Cartesian topology.

Connect(port_name[, info, root])

Make a request to form a new intercommunicator.

Create_cart(dims[, periods, reorder])

Create cartesian communicator.

Create_dist_graph(sources, degrees, destinations)

Create distributed graph communicator.

Create_dist_graph_adjacent(sources, destinations)

Create distributed graph communicator.

Create_from_group(group[, stringtag, info, ...])

Create communicator from group.

Create_graph(index, edges[, reorder])

Create graph communicator.

Create_group(group[, tag])

Create communicator from group.

Create_intercomm(local_leader, peer_comm, ...)

Create intercommunicator.

Exscan(sendbuf, recvbuf[, op])

Exclusive Scan.

Exscan_init(sendbuf, recvbuf[, op, info])

Persistent Exclusive Scan.

Graph_map(index, edges)

Determine optimal process placement on a graph topology.

Iexscan(sendbuf, recvbuf[, op])

Inclusive Scan.

Iscan(sendbuf, recvbuf[, op])

Inclusive Scan.

Scan(sendbuf, recvbuf[, op])

Inclusive Scan.

Scan_init(sendbuf, recvbuf[, op, info])

Persistent Inclusive Scan.

Spawn(command[, args, maxprocs, info, root, ...])

Spawn instances of a single MPI application.

Spawn_multiple(command[, args, maxprocs, ...])

Spawn instances of multiple MPI applications.

exscan(sendobj[, op])

Exclusive Scan.

scan(sendobj[, op])

Inclusive Scan.

Methods Documentation

Accept(port_name, info=INFO_NULL, root=0)

Accept a request to form a new intercommunicator.

Parameters:
  • port_name (str) –

  • info (Info) –

  • root (int) –

Return type:

Intercomm

Cart_map(dims, periods=None)

Determine optimal process placement on a Cartesian topology.

Parameters:
Return type:

int

Connect(port_name, info=INFO_NULL, root=0)

Make a request to form a new intercommunicator.

Parameters:
  • port_name (str) –

  • info (Info) –

  • root (int) –

Return type:

Intercomm

Create_cart(dims, periods=None, reorder=False)

Create cartesian communicator.

Parameters:
Return type:

Cartcomm

Create_dist_graph(sources, degrees, destinations, weights=None, info=INFO_NULL, reorder=False)

Create distributed graph communicator.

Parameters:
Return type:

Distgraphcomm

Create_dist_graph_adjacent(sources, destinations, sourceweights=None, destweights=None, info=INFO_NULL, reorder=False)

Create distributed graph communicator.

Parameters:
Return type:

Distgraphcomm

classmethod Create_from_group(group, stringtag='org.mpi4py', info=INFO_NULL, errhandler=None)

Create communicator from group.

Parameters:
Return type:

Intracomm

Create_graph(index, edges, reorder=False)

Create graph communicator.

Parameters:
Return type:

Graphcomm

Create_group(group, tag=0)

Create communicator from group.

Parameters:
Return type:

Intracomm

Create_intercomm(local_leader, peer_comm, remote_leader, tag=0)

Create intercommunicator.

Parameters:
Return type:

Intercomm

Exscan(sendbuf, recvbuf, op=SUM)

Exclusive Scan.

Parameters:
Return type:

None

Exscan_init(sendbuf, recvbuf, op=SUM, info=INFO_NULL)

Persistent Exclusive Scan.

Parameters:
Return type:

Prequest

Graph_map(index, edges)

Determine optimal process placement on a graph topology.

Parameters:
Return type:

int

Iexscan(sendbuf, recvbuf, op=SUM)

Inclusive Scan.

Parameters:
Return type:

Request

Iscan(sendbuf, recvbuf, op=SUM)

Inclusive Scan.

Parameters:
Return type:

Request

Scan(sendbuf, recvbuf, op=SUM)

Inclusive Scan.

Parameters:
Return type:

None

Scan_init(sendbuf, recvbuf, op=SUM, info=INFO_NULL)

Persistent Inclusive Scan.

Parameters:
Return type:

Prequest

Spawn(command, args=None, maxprocs=1, info=INFO_NULL, root=0, errcodes=None)

Spawn instances of a single MPI application.

Parameters:
Return type:

Intercomm

Spawn_multiple(command, args=None, maxprocs=None, info=INFO_NULL, root=0, errcodes=None)

Spawn instances of multiple MPI applications.

Parameters:
Return type:

Intercomm

exscan(sendobj, op=SUM)

Exclusive Scan.

Parameters:
Return type:

Any

scan(sendobj, op=SUM)

Inclusive Scan.

Parameters:
Return type:

Any