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do i = 1, nomi, 1
   if (mod(i-1,world_size) /= world_rank) cycle
   kkim = kkimp(i,1:3)
   call proce(i,ndegen,nbc,npo,kkim,hil,thil,tecv,teve,bcb,eni,er,pi,nne,hb,bcp1)
   if (world_rank == 0) then
      bcp2 = bcp1 £¡the 6th line
      do j = 1, world_size-1, 1
         if (i-1+j == nomi) exit
         k = i + j + 1000
         call mpi_recv(bcp3,nomi*nne*6,mpi_double_complex,j,k,mpi_comm_world,mpi_status_ignore,ierr)
         bcp2 = bcp2 + bcp3
      end do
   else
      k = i + 1000
      call mpi_send(bcp1,nomi*nne*6,mpi_double_complex,0,k,mpi_comm_world,ierr)
   end if
end do

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µ±Óøù½ø³Ì£¨root processor£©Ê¹ÓÃÊý×ébcp2£¬´Ó¸÷¸ö½ø³Ì£¨°üÀ¨Æä×ÔÉí£©ÊÕ¼¯¸÷×Եõ½µÄÊý×ébcp1ʱ£¬¸ù½ø³Ì£¨root processor£©ÐèÒªÏÈÊÕ¼¯×Ô¼ºµÃµ½µÄÊý×ébcp1¡£

ÒòΪ¼ÙÉè¸ù½ø³Ì£¨root processor£©ÔÚÍâÑ­»·ÀïÒ»¹²±»Ê¹ÓÃÁËÁ½´Î£¬¸ù½ø³Ì£¨root processor£©Ò»¹²Òª´Ó×ÔÉíÊÕ¼¯Á½´Îbcp1Êý×é¡£ÄdzÌÐòÀïµÄµÚ6ÐУ¨±ê¼ÇΪ£¡the 6th line£©£¬Ð´³Ébcp2 = bcp1ÊÇ·ñºÏÀíÄØ£¿

ÎÒ¾õµÃÕâÑùд£¬»áʹµÃ¸ù½ø³Ì£¨root processor£©ÔÚÑ­»·ÀïµÚ¶þ´Î±»Ê¹Óõõ½µÄÊý×ébcp1£¬¸²¸ÇµôµÚÒ»´Î±»Ê¹Óõõ½µÄÊý×ébcp1£¬½ø¶øµ¼Ö¶ªÊ§Á˵ÚÒ»´ÎʹÓÃʱµÃµ½µÄÊý×ébcp1ÐÅÏ¢¡£

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