Comm

java.lang.Object
- mpi.Comm

Direct Known Subclasses:: Intercomm, Intracomm

public class Comm
extends java.lang.Object

Field Summary

Fields
Modifier and Type	Field and Description
`Group`	`group`
`mpjdev.Comm`	`mpjdevComm`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`Abort(int errorcode)` Abort MPI.
`void`	`Attr_delete(int keyval)` Retrieves attribute value by key.
`java.lang.Object`	`Attr_get(int keyval)` Retrieves attribute value by key.
`Prequest`	`Bsend_init(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Creates a persistent communication request for a buffered mode send.
`void`	`Bsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Send in buffered mode.
`protected void`	`bsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`java.lang.Object`	`clone()` Duplicate this communicator.
`static int`	`Compare(Comm comm1, Comm comm2)` Compare two communicators.
`Intercomm`	`Create_intercomm(Comm local_comm, int local_leader, int remote_leader, int tag)` Create an inter-communicator.
`void`	`Free()` Destroy this communicator.
`Group`	`Group()` Return group associated with a communicator.
`Request`	`Ibsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Start a buffered mode, nonblocking send.
`protected Request`	`ibsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`Status`	`Iprobe(int source, int tag)` Check if there is an incoming message matching the pattern specified.
`Request`	`Irecv(java.lang.Object buf, int offset, int count, Datatype datatype, int src, int tag)` Start a nonblocking receive.
`protected Request`	`irecv(java.lang.Object buf, int offset, int count, Datatype datatype, int src, int tag, boolean pt2pt)`
`Request`	`Irsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Start a ready mode, nonblocking send.
`protected Request`	`irsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`Request`	`Isend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Start a standard mode, nonblocking send.
`protected Request`	`isend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`Request`	`Issend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Start a synchronous mode, nonblocking send.
`protected Request`	`issend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`int`	`Pack_size(int incount, Datatype datatype)` Returns an upper bound on the increment of `position` effected by `pack`.
`int`	`Pack(java.lang.Object inbuf, int offset, int incount, Datatype datatype, mpjbuf.Buffer outbuf, int position)` Packs message in send buffer `inbuf` into space specified in `outbuf`.
`Status`	`Probe(int source, int tag)` Wait until there is an incoming message matching the pattern specified.
`int`	`Rank()` Rank of this process in group of this communicator.
`Prequest`	`Recv_init(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Creates a persistent communication request for a receive operation.
`Status`	`Recv(java.lang.Object buf, int offset, int count, Datatype datatype, int source, int tag)` Blocking receive operation.
`protected Status`	`recv(java.lang.Object buf, int offset, int count, Datatype datatype, int source, int tag, boolean pt2pt)`
`Prequest`	`Rsend_init(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Creates a persistent communication request for a ready mode send.
`void`	`Rsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Send in ready mode.
`protected void`	`rsend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`Prequest`	`Send_init(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Creates a persistent communication request for a standard mode send.
`void`	`Send(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Blocking send operation.
`protected void`	`send(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`Status`	`Sendrecv_replace(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int sendtag, int source, int recvtag)` Execute a blocking send and receive operation, receiving message into send buffer.
`protected Status`	`sendrecv(java.lang.Object sendbuf, int sendoffset, int sendcount, Datatype sendtype, int dest, int sendtag, java.lang.Object recvbuf, int recvoffset, int recvcount, Datatype recvtype, int source, int recvtag)`
`Status`	`Sendrecv(java.lang.Object sendbuf, int sendoffset, int sendcount, Datatype sendtype, int dest, int sendtag, java.lang.Object recvbuf, int recvoffset, int recvcount, Datatype recvtype, int source, int recvtag)` Execute a blocking send and receive operation.
`int`	`Size()` Size of group of this communicator.
`Prequest`	`Ssend_init(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Creates a persistent communication request for a synchronous mode send.
`void`	`Ssend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag)` Send in synchronous mode.
`protected void`	`ssend(java.lang.Object buf, int offset, int count, Datatype datatype, int dest, int tag, boolean pt2pt)`
`boolean`	`Test_inter()` Test if this communicator is an inter-communicator.
`int`	`Topo_test()` Returns the type of topology associated with the communicator.
`int`	`Unpack(mpjbuf.Buffer inbuf, int position, java.lang.Object outbuf, int offset, int outcount, Datatype datatype)` Unpacks message in receive buffer `outbuf` into space specified in `inbuf`.

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

group
```
public Group group
```

mpjdevComm
```
public mpjdev.Comm mpjdevComm
```

Method Detail

Size
```
public int Size()
         throws MPIException
```
Size of group of this communicator.

returns: number of processors in the group of this communicator

Java binding of the MPI operation MPI_COMM_SIZE.

Throws:

MPIException

Rank
```
public int Rank()
         throws MPIException
```
Rank of this process in group of this communicator.

returns: rank of the calling process in the group of this communicator

Java binding of the MPI operation MPI_COMM_RANK.

Throws:

MPIException

Group
```
public Group Group()
            throws MPIException
```
Return group associated with a communicator.

returns: group corresponding to this communicator group

Java binding of the MPI operation MPI_COMM_GROUP.

Throws:

MPIException

Compare

public static int Compare(Comm comm1,
          Comm comm2)
                   throws MPIException

Compare two communicators.

`comm1`	first communicator
`comm2`	second communicator
returns:	result

Java binding of the MPI operation MPI_COMM_COMPARE.

MPI.IDENT(0) results if the comm1 and comm2 are references to the same object (ie, if comm1 == comm2). MPI.CONGRUENT(3) results if the underlying groups are identical but the communicators differ by context. MPI.SIMILAR(1) results if the underlying groups are similar but the communicators differ by context. MPI.UNEQUAL(2) results otherwise.

Throws:: MPIException

Free
```
public void Free()
          throws MPIException
```
Destroy this communicator.
Java binding of the MPI operation MPI_COMM_FREE.

Throws:

MPIException

Test_inter
```
public boolean Test_inter()
                   throws MPIException
```
Test if this communicator is an inter-communicator.

returns: true if this is an inter-communicator, false otherwise

Java binding of the MPI operation MPI_COMM_TEST_INTER.

Throws:

MPIException

Create_intercomm

public Intercomm Create_intercomm(Comm local_comm,
                         int local_leader,
                         int remote_leader,
                         int tag)
                           throws MPIException

Create an inter-communicator.

`local_comm`	local intra-communicator
`local_leader`	rank of local group leader in `localComm`
`remote_leader`	rank of remote group leader in this communictor
`tag`	``safe'' tag
returns:	new inter-communicator

Java binding of the MPI operation MPI_INTERCOMM_CREATE.

(This operation is defined as a method on the ``peer communicator'', making it analogous to a send or recv communication with the remote group leader.)

Throws:: MPIException

Attr_get

public java.lang.Object Attr_get(int keyval)
                          throws MPIException

Retrieves attribute value by key.

`keyval`	one of the key values predefined by the implementation
returns:	attribute value

Java binding of the MPI operation MPI_ATTR_GET.

Throws:: MPIException

Attr_delete

public void Attr_delete(int keyval)
                 throws MPIException

Retrieves attribute value by key.

`keyval`	one of the key values predefined by the implementation
returns:	attribute value

Java binding of the MPI operation MPI_ATTR_GET.

Throws:: MPIException

Send

public void Send(java.lang.Object buf,
        int offset,
        int count,
        Datatype datatype,
        int dest,
        int tag)
          throws MPIException

Blocking send operation.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag

Java binding of the MPI operation MPI_SEND.

The actual argument associated with buf must be one-dimensional array. The value offset is a subscript in this array, defining the position of the first item of the message.

If the datatype argument represents an MPI basic type, its value must agree with the element type of buf---either a primitive type or a reference (object) type. If the datatype argument represents an MPI derived type, its base type must agree with the element type of buf

Throws:: MPIException

send

protected void send(java.lang.Object buf,
        int offset,
        int count,
        Datatype datatype,
        int dest,
        int tag,
        boolean pt2pt)
             throws MPIException

Throws:: MPIException

Ssend

public void Ssend(java.lang.Object buf,
         int offset,
         int count,
         Datatype datatype,
         int dest,
         int tag)
           throws MPIException

Send in synchronous mode.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag

Java binding of the MPI operation MPI_SSEND.

Further comments as for Send.

Throws:: MPIException

ssend

protected void ssend(java.lang.Object buf,
         int offset,
         int count,
         Datatype datatype,
         int dest,
         int tag,
         boolean pt2pt)
              throws MPIException

Throws:: MPIException

Bsend

public void Bsend(java.lang.Object buf,
         int offset,
         int count,
         Datatype datatype,
         int dest,
         int tag)
           throws MPIException

Send in buffered mode.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag

Java binding of the MPI operation MPI_BSEND.

This operation copies message into a buffer (mpi.Buffer) specified by MPI.Buffer_attach operation, and then sends using the standard mode of communication. Further comments as for Send.

Throws:: MPIException

bsend

protected void bsend(java.lang.Object buf,
         int offset,
         int count,
         Datatype datatype,
         int dest,
         int tag,
         boolean pt2pt)
              throws MPIException

Throws:: MPIException

Rsend

public void Rsend(java.lang.Object buf,
         int offset,
         int count,
         Datatype datatype,
         int dest,
         int tag)
           throws MPIException

Send in ready mode.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag

Java binding of the MPI operation MPI_RSEND.

Further comments as for Send.

Throws:: MPIException

rsend

protected void rsend(java.lang.Object buf,
         int offset,
         int count,
         Datatype datatype,
         int dest,
         int tag,
         boolean pt2pt)
              throws MPIException

Throws:: MPIException

Isend

public Request Isend(java.lang.Object buf,
            int offset,
            int count,
            Datatype datatype,
            int dest,
            int tag)
              throws MPIException

Start a standard mode, nonblocking send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	communication request

Java binding of the MPI operation MPI_ISEND.

Further comments as for Send.

Throws:: MPIException

isend

protected Request isend(java.lang.Object buf,
            int offset,
            int count,
            Datatype datatype,
            int dest,
            int tag,
            boolean pt2pt)
                 throws MPIException

Throws:: MPIException

Ibsend

public Request Ibsend(java.lang.Object buf,
             int offset,
             int count,
             Datatype datatype,
             int dest,
             int tag)
               throws MPIException

Start a buffered mode, nonblocking send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	communication request

Java binding of the MPI operation MPI_IBSEND.

Further comments as for Send.

Throws:: MPIException

ibsend

protected Request ibsend(java.lang.Object buf,
             int offset,
             int count,
             Datatype datatype,
             int dest,
             int tag,
             boolean pt2pt)
                  throws MPIException

Throws:: MPIException

Issend

public Request Issend(java.lang.Object buf,
             int offset,
             int count,
             Datatype datatype,
             int dest,
             int tag)
               throws MPIException

Start a synchronous mode, nonblocking send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	communication request

Java binding of the MPI operation MPI_ISSEND.

Further comments as for Send.

Throws:: MPIException

issend

protected Request issend(java.lang.Object buf,
             int offset,
             int count,
             Datatype datatype,
             int dest,
             int tag,
             boolean pt2pt)
                  throws MPIException

Throws:: MPIException

Irsend

public Request Irsend(java.lang.Object buf,
             int offset,
             int count,
             Datatype datatype,
             int dest,
             int tag)
               throws MPIException

Start a ready mode, nonblocking send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	communication request

Java binding of the MPI operation MPI_IRSEND.

Further comments as for Send.

Throws:: MPIException

irsend

protected Request irsend(java.lang.Object buf,
             int offset,
             int count,
             Datatype datatype,
             int dest,
             int tag,
             boolean pt2pt)
                  throws MPIException

Throws:: MPIException

Recv

public Status Recv(java.lang.Object buf,
          int offset,
          int count,
          Datatype datatype,
          int source,
          int tag)
            throws MPIException

Blocking receive operation.

`buf`	receive buffer array
`offset`	initial offset in receive buffer
`count`	number of items in receive buffer
`datatype`	datatype of each item in receive buffer
`source`	rank of source
`tag`	message tag
returns:	status object

Java binding of the MPI operation MPI_RECV.

The actual argument associated with buf must be one-dimensional array. The value offset is a subscript in this array, defining the position into which the first item of the incoming message will be copied.

Throws:: MPIException

recv

protected Status recv(java.lang.Object buf,
          int offset,
          int count,
          Datatype datatype,
          int source,
          int tag,
          boolean pt2pt)
               throws MPIException

Throws:: MPIException

Irecv

public Request Irecv(java.lang.Object buf,
            int offset,
            int count,
            Datatype datatype,
            int src,
            int tag)
              throws MPIException

Start a nonblocking receive.

`buf`	receive buffer array
`offset`	initial offset in receive buffer
`count`	number of items in receive buffer
`datatype`	datatype of each item in receive buffer
`source`	rank of source
`tag`	message tag
returns:	communication request

Java binding of the MPI operation MPI_IRECV.

Further comments as for Recv.

Throws:: MPIException

irecv

protected Request irecv(java.lang.Object buf,
            int offset,
            int count,
            Datatype datatype,
            int src,
            int tag,
            boolean pt2pt)
                 throws MPIException

Throws:: MPIException

Iprobe

public Status Iprobe(int source,
            int tag)
              throws MPIException

Check if there is an incoming message matching the pattern specified.

`source`	rank of source
`tag`	message tag
returns:	status object or null handle

Java binding of the MPI operation MPI_IPROBE.

If such a message is currently available, a status object similar to the return value of a matching Recv operation is returned. Otherwise a null handle is returned.

Throws:: MPIException

Probe

public Status Probe(int source,
           int tag)
             throws MPIException

Wait until there is an incoming message matching the pattern specified.

`source`	rank of source
`tag`	message tag
returns:	status object

Java binding of the MPI operation MPI_PROBE.

Returns a status object similar to the return value of a matching Recv operation.

Throws:: MPIException

Pack_size

public int Pack_size(int incount,
            Datatype datatype)
              throws MPIException

Returns an upper bound on the increment of position effected by pack.

`incount`	number of items in input buffer
`datatype`	datatype of each item in input buffer
returns:	upper bound on size of packed message

Java binding of the MPI operation MPI_PACK_SIZE.

It is an error to call this function if the base type of datatype is MPI.OBJECT.

Throws:: MPIException

Pack

public int Pack(java.lang.Object inbuf,
       int offset,
       int incount,
       Datatype datatype,
       mpjbuf.Buffer outbuf,
       int position)
         throws MPIException

Packs message in send buffer inbuf into space specified in outbuf.

`inbuf`	input buffer array
`offset`	initial offset in input buffer
`incount`	number of items in input buffer
`datatype`	datatype of each item in input buffer
`outbuf`	output buffer
`position`	initial position in output buffer
returns:	final position in output buffer

Java binding of the MPI operation MPI_PACK.

The return value is the output value of position - the inital value incremented by the number of bytes written.

Throws:: MPIException

Unpack

public int Unpack(mpjbuf.Buffer inbuf,
         int position,
         java.lang.Object outbuf,
         int offset,
         int outcount,
         Datatype datatype)
           throws MPIException

Unpacks message in receive buffer outbuf into space specified in inbuf.

`inbuf`	input buffer
`position`	initial position in input buffer
`outbuf`	output buffer array
`offset`	initial offset in output buffer
`outcount`	number of items in output buffer
`datatype`	datatype of each item in output buffer
returns:	final position in input buffer

Java binding of the MPI operation MPI_UNPACK.

The return value is the output value of position - the inital value incremented by the number of bytes read.

Throws:: MPIException

Bsend_init

public Prequest Bsend_init(java.lang.Object buf,
                  int offset,
                  int count,
                  Datatype datatype,
                  int dest,
                  int tag)
                    throws MPIException

Creates a persistent communication request for a buffered mode send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	persistent communication request

Java binding of the MPI operation MPI_BSEND_INIT.

Further comments as for Send.

Throws:: MPIException

Send_init

public Prequest Send_init(java.lang.Object buf,
                 int offset,
                 int count,
                 Datatype datatype,
                 int dest,
                 int tag)
                   throws MPIException

Creates a persistent communication request for a standard mode send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	persistent communication request

Java binding of the MPI operation MPI_SEND_INIT.

Further comments as for Send.

Throws:: MPIException

Ssend_init

public Prequest Ssend_init(java.lang.Object buf,
                  int offset,
                  int count,
                  Datatype datatype,
                  int dest,
                  int tag)
                    throws MPIException

Creates a persistent communication request for a synchronous mode send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	persistent communication request

Java binding of the MPI operation MPI_SSEND_INIT.

Further comments as for Send.

Throws:: MPIException

Rsend_init

public Prequest Rsend_init(java.lang.Object buf,
                  int offset,
                  int count,
                  Datatype datatype,
                  int dest,
                  int tag)
                    throws MPIException

Creates a persistent communication request for a ready mode send.

`buf`	send buffer array
`offset`	initial offset in send buffer
`count`	number of items to send
`datatype`	datatype of each item in send buffer
`dest`	rank of destination
`tag`	message tag
returns:	persistent communication request

Java binding of the MPI operation MPI_RSEND_INIT.

Further comments as for Send.

Throws:: MPIException

Recv_init

public Prequest Recv_init(java.lang.Object buf,
                 int offset,
                 int count,
                 Datatype datatype,
                 int dest,
                 int tag)
                   throws MPIException

Creates a persistent communication request for a receive operation.

`buf`	receive buffer array
`offset`	initial offset in receive buffer
`count`	number of items in receive buffer
`datatype`	datatype of each item in receive buffer
`source`	rank of source
`tag`	message tag
returns:	communication request

Java binding of the MPI operation MPI_RECV_INIT.

Further comments as for Recv.

Throws:: MPIException

Sendrecv

public Status Sendrecv(java.lang.Object sendbuf,
              int sendoffset,
              int sendcount,
              Datatype sendtype,
              int dest,
              int sendtag,
              java.lang.Object recvbuf,
              int recvoffset,
              int recvcount,
              Datatype recvtype,
              int source,
              int recvtag)
                throws MPIException

Execute a blocking send and receive operation.

`sendbuf`	send buffer array
`sendoffset`	initial offset in send buffer
`sendcount`	number of items to send
`sendtype`	datatype of each item in send buffer
`dest`	rank of destination
`sendtag`	send tag
`recvbuf`	receive buffer array
`recvoffset`	initial offset in receive buffer
`recvcount`	number of items in receive buffer
`recvtype`	datatype of each item in receive buffer
`source`	rank of source
`recvtag`	receive tag
returns:	status object

Java binding of the MPI operation MPI_SENDRECV.

Further comments as for Send and Recv.

Throws:: MPIException

Sendrecv_replace

public Status Sendrecv_replace(java.lang.Object buf,
                      int offset,
                      int count,
                      Datatype datatype,
                      int dest,
                      int sendtag,
                      int source,
                      int recvtag)
                        throws MPIException

Execute a blocking send and receive operation, receiving message into send buffer.

`buf`	buffer array
`offset`	initial offset in buffer
`count`	number of items to send
`type`	datatype of each item in buffer
`dest`	rank of destination
`sendtag`	send tag
`source`	rank of source
`recvtag`	receive tag
returns:	status object

Further comments as for Send and Recv.

Throws:: MPIException

sendrecv

protected Status sendrecv(java.lang.Object sendbuf,
              int sendoffset,
              int sendcount,
              Datatype sendtype,
              int dest,
              int sendtag,
              java.lang.Object recvbuf,
              int recvoffset,
              int recvcount,
              Datatype recvtype,
              int source,
              int recvtag)
                   throws MPIException

Throws:: MPIException

Topo_test
```
public int Topo_test()
              throws MPIException
```
Returns the type of topology associated with the communicator.

returns: topology type of communicator

Java binding of the MPI operation MPI_TOPO_TEST.

The return value will be one of MPI.GRAPH, MPI.CART or MPI.UNDEFINED.

Throws:

MPIException

Abort
```
public void Abort(int errorcode)
           throws MPIException
```
Abort MPI.

errorcode error code for Unix or POSIX environments

Java binding of the MPI operation MPI_ABORT.

Throws:

MPIException

clone
```
public java.lang.Object clone()
                       throws MPIException
```
Duplicate this communicator.

returns: copy of this communicator

Java binding of the MPI operation MPI_COMM_DUP.

The new communicator is ``congruent'' to the old one, but has a different context.

Overrides:

clone in class java.lang.Object

Throws:

MPIException

Class Comm

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

group

mpjdevComm

Method Detail

Size

Rank

Group

Compare

Free

Test_inter

Create_intercomm

Attr_get

Attr_delete

Send

send

Ssend

ssend

Bsend

bsend

Rsend

rsend

Isend

isend

Ibsend

ibsend

Issend

issend

Irsend

irsend

Recv

recv

Irecv

irecv

Iprobe

Probe

Pack_size

Pack

Unpack

Bsend_init

Send_init

Ssend_init

Rsend_init

Recv_init

Sendrecv

Sendrecv_replace

sendrecv

Topo_test

Abort

clone