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´ó¼ÒºÃ£¬ ÎÒÏëÏò´ó¼ÒÇë½ÌÒ»¸öÎÊÌâ¡£¶ÔÓÚÈý²ãǶÌ×Ñ»·µÄfortran³ÌÐòÒªÈçºÎÓÃmpi¼¼Êõ²¢ÐÐÄØ£¿±ÈÈçÏÂÃæÕâ¶Î´úÂ룬±äÁ¿arrÊÇÒ»¸öÈýάÊý×飬ÎÒÏë¶ÔËüµÄÿһά¶È¶¼·Ö±ð¸÷×Ô²¢ÐУ¬²¢½«¸ÃÊý×éÀïµÄÿ¸öÔªËØ£¬Í¨¹ý¼ÆËãºó¼ÓºÍ£¬×îºóÊÕ¼¯µ½collect±äÁ¿Àï¡£ ÄÜ·ñÇë´ó¼Ò°ïÎÒÐÞ¸ÄÏÂÕâ¶Î´úÂ룬°ÑËü±ä³Émpi²¢ÐеijÌÐòÄØ£¿Ð»Ð»À²¡£ !example code program example implicit none integer :: i, j, k double precision :: arr(100,1000,700), collect do i = 1, 100, 1 do j = 1, 1000, 1 do k = 1, 700, 1 arr(i,j,k) = dble(i + j + k) end do end do end do collect = 0.0d0 !this is the part that i want to parallelize do i = 1, 100, 1 do j = 1, 1000, 1 do k = 1, 700, 1 collect = collect + arr(i,j,k) * dble(i+j-k) end do end do end do write (unit=*, fmt=*) collect ! stop end program example |
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