CentOS中Fortran支持哪些并行计算

program parallel_loop
  use omp_lib
  implicit none
  integer :: i, n
  real, allocatable :: a(:), b(:)
  n = 1000000
  allocate(a(n), b(n))
  ! 初始化数组
  a = 1.0
  b = 2.0
  ! 并行计算
  !omp parallel do
  do i = 1, n
    a(i) = a(i) * b(i)
  end do
  !omp end parallel do
  ! 打印结果的前5个元素
  print *, 'First 5 elements of array a:'
  print *, a(1:5)
  deallocate(a, b)
end program parallel_loop

program mpi_example
  use mpi
  implicit none
  integer :: rank, size, ierr, i
  integer, parameter :: n = 100
  real, allocatable :: local_sum, global_sum
  real, allocatable :: a(:)
  call MPI_Init(ierr)
  call MPI_Comm_rank(MPI_COMM_WORLD, rank, ierr)
  call MPI_Comm_size(MPI_COMM_WORLD, size, ierr)
  allocate(a(n))
  a = 1.0 / real(n)
  ! 每个进程计算部分和
  local_sum = 0.0
  do i = 1, n
    local_sum = local_sum + a(i)
  end do
  ! 所有部分和相加得到全局和
  call MPI_Reduce(local_sum, global_sum, 1, MPI_REAL, MPI_SUM, 0, MPI_COMM_WORLD, ierr)
  if (rank == 0) then
    print *, 'Global sum ', global_sum
  end if
  call MPI_Finalize(ierr)
  deallocate(a)
end program mpi_example