我不明白为什么以下程序不起作用。当我使用“mpirun -np 2 a.out”运行它时,我希望它打印“N:2”,但它却给了我一个段错误。
谢谢
主文件
program main
implicit none
include 'mpif.h'
integer me, ngs,ierror
call inimpi(me, ngs)
call calc
call mpi_finalize( ierror )
stop
end
inimpi.f
subroutine inimpi(me, ngs)
include 'mpif.h'
integer me, ngs, ierror
call mpi_init( ierror )
call mpi_comm_rank( mpi_comm_world, me, ierror )
call mpi_comm_size( mpi_comm_world, ngs, ierror )
return
end
计算
subroutine calc
include 'mpif.h'
integer p, e, ierror
p = 1
call mpi_reduce(p, e, 1, mpi_integer,
& mpi_sum, mpi_comm_world, ierror)
print *, "N: ", e
return
end