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xianweiwang

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MODULE GLOBAL
implicit none
type INDATA_TYPE
real a
real b
integer n
end type INDATA_TYPE
END MODULE GLOBAL

program Get_data3
use global
include 'mpif.h'
type(INDATA_TYPE) indata
integer my_rank
integer mesg_mpi_t
integer ierr
  call MPI_INIT (ierr)
  call MPI_COMM_RANK (MPI_COMM_WORLD,my_rank,ierr)
  call MPI_COMM_SIZE (MPI_COMM_WORLD,numproc,ierr)
print*, my_rank
print*, numproc
  call MPI_Barrier(MPI_COMM_WORLD,ierr)

if(my_rank.eq.0)then
  print *, 'Enter a, b, and n'
  read *, indata%a, indata%b, indata%n
endif

  call Build_derived_type(indata, mesg_mpi_t)
  call MPI_BCAST(indata, 1, mesg_mpi_t, 0,MPI_COMM_WORLD,ierr )
       print*, indata%a, indata%b, indata%n
  call MPI_Barrier(MPI_COMM_WORLD,ierr)
  call MPI_FINALIZE(ierr)
end
subroutine Build_derived_type(indata, mesg_mpi_t)
use GLOBAL
IMPLICIT NONE
INCLUDE 'mpif.h'
type(INDATA_TYPE) indata
integer mesg_mpi_t
integer ierr
integer block_lengths(3)
integer displacements(3)
integer address(4)
integer typelist(3)
typelist(1) = MPI_REAL
typelist(2) = MPI_REAL
typelist(3) = MPI_INTEGER
block_lengths(1) = 1
block_lengths(2) = 1
block_lengths(3) = 1
call MPI_address(indata, address(1), ierr)
call MPI_address(indata%a, address(2), ierr)
call MPI_address(indata%b, address(3), ierr)
call MPI_address(indata%n, address(4), ierr)
displacements(1) = address(2) - address(1)
displacements(2) = address(3) - address(1)
displacements(3) = address(4) - address(1)
call MPI_TYPE_STRUCT(3, block_lengths, displacements, typelist, mesg_mpi_t, ierr)
call MPI_TYPE_COMMIT(mesg_mpi_t, ierr)
return
end
ÔËÐнá¹ûÊÇ
mpirun -np 8 ./a.out
0
1
Enter a, b, and n
0
1
Enter a, b, and n
0
1
Enter a, b, and n
0
1
Enter a, b, and n
0
1
Enter a, b, and n
0
1
Enter a, b, and n
0
1
Enter a, b, and n
0
1
Enter a, b, and n
forrtl: severe (24): end-of-file during read, unit -4, file stdin
Image PC Routine Line Source
a.out 00000000004B8891 Unknown Unknown Unknown
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xianweiwang

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print*, my_rank
print*, numproc
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jjdg(½ð±Ò+1): ¸Ðл²ÎÓë 2012-01-16 10:11:43
  read *, indata%a, indata%b, indata%n

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xianweiwang

Ìú³æ (СÓÐÃûÆø)

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  read *, indata%a, indata%b, indata%n

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