## psb_rcv -- Receive data

    call psb_rcv(icontxt, dat, src, m)

This subroutine receives a packet of data to a destination.

Type:
  Synchronous: see usage notes.
On Entry
icontxt
  the communication context identifying the virtual parallel machine.
  Scope: global.
  Type: required.
  Intent: in.
  Specified as: an integer variable.
src
  Source process.
  Scope: global.
  Type: required.
  Intent: in.
  Specified as: an integer value .
m
  Number of rows.
  Scope: global.
  Type: Optional.
  Intent: in.
  Specified as: an integer value .
  When is a rank 2 array, specifies the number of rows to be sent independently of the leading dimension ; must have the same value on sending and receiving processes.

On Return
dat
  The data to be received.
  Scope: local.
  Type: required.
  Intent: inout.
  Specified as: an integer, real or complex variable, which may be a scalar, or a rank 1 or 2 array, or a character or logical scalar. Type, kind and rank must agree on sender and receiver process; if is not specified, size must agree as well.

Notes

1. This subroutine implies a synchronization, but only between the calling process and the source process .