>>74
やりたいのはこんな感じかな？
MODULE m_test
CONTAINS
subroutine alloc4i(imem, msize)
integer, allocatable, INTENT(OUT) :: imem(:)
integer, INTENT(IN) :: msize
if ( .not. allocated(imem) ) then
allocate( imem(msize), stat=ier )
if (ier .ne. 0) stop
else
stop
endif
return
end subroutine alloc4i
END MODULE m_test

program mtest
USE m_test
integer, allocatable :: imem1(:), imem2(:)
msize = 1000*1000 * 200
call alloc4i(imem1, msize)
call alloc4i(imem2, msize)
stop
end