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< meta name = " generator " content = " ZealOS V0.05 " >
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< pre style = " font-family:monospace;font-size:12pt " >
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< a name = " l1 " > < / a > < span class = cF2 > /*</span><span class=cF0>
< a name = " l2 " > < / a > < / span > < span class = cF2 > On an 8 - core machine , this takes the top 3 - bits < / span > < span class = cF0 >
< a name = " l3 " > < / a > < / span > < span class = cF2 > of random numbers and distributes them to the 8 cores < / span > < span class = cF0 >
< a name = " l4 " > < / a > < / span > < span class = cF2 > for sorting . < / span > < span class = cF0 > < / span > < span class = cF2 > Then , it merge sorts them . < / span > < span class = cF0 >
< a name = " l5 " > < / a > < / span > < span class = cF2 > */ < / span > < span class = cF0 >
< a name = " l6 " > < / a >
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< a name = " l7 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > NUM < / span > < span class = cFE > 1000000 < / span > < span class = cF0 >
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< a name = " l8 " > < / a >
< a name = " l9 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > my_mp_count = < / span > < span class = cFE > 1 < / span > < span class = cF0 > & lt ; & lt ; < / span > < span class = cF5 > Bsr < / span > < span class = cF0 > ( < / span > < span class = cFB > mp_count < / span > < span class = cF0 > ) ; < / span > < span class = cF2 > //Power of 2</span><span class=cF0>
< a name = " l10 " > < / a >
< a name = " l11 " > < / a > < / span > < span class = cF9 > I32 < / span > < span class = cF0 > * arg1 , * arg2 ;
< a name = " l12 " > < / a > < / span > < span class = cF9 > I32 < / span > < span class = cF0 > * b [ my_mp_count ] , bn [ my_mp_count ] ;
< a name = " l13 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > mp_not_done_flags ;
< a name = " l14 " > < / a >
< a name = " l15 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > Compare ( < / span > < span class = cF9 > I32 < / span > < span class = cF0 > * e1 , < / span > < span class = cF9 > I32 < / span > < span class = cF0 > * e2 )
< a name = " l16 " > < / a > {
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< a name = " l17 " > < / a > < / span > < span class = cF1 > return < / span > < span class = cF0 > * e1 - * e2 ;
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< a name = " l18 " > < / a > }
< a name = " l19 " > < / a >
< a name = " l20 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > QuickSortU32 ( < / span > < span class = cF9 > I32 < / span > < span class = cF0 > * base , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > num )
< a name = " l21 " > < / a > { < / span > < span class = cF2 > //By customizing, we dramatically improve it!</span><span class=cF0>
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< a name = " l22 " > < / a > < / span > < span class = cF2 > //Cut and paste from </span><a href="https://tomawezome.github.io/ZealOS/Kernel/QuickSort.html#l1"><span class=cF4>QuickSortI64</span></a><span class=cF2>().</span><span class=cF0>
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< a name = " l23 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > i ;
< a name = " l24 " > < / a > < / span > < span class = cF9 > I32 < / span > < span class = cF0 > * less , * greater , pivot ;
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< a name = " l25 " > < / a >
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< a name = " l26 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( num & gt ; < / span > < span class = cFE > 1 < / span > < span class = cF0 > )
< a name = " l27 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l28 " > < / a > < / span > < span class = cF1 > do < / span > < span class = cF0 >
< a name = " l29 " > < / a > {
< a name = " l30 " > < / a > less = base ;
< a name = " l31 " > < / a > greater = base + num ;
< a name = " l32 " > < / a > pivot = base [ num / < / span > < span class = cFE > 2 < / span > < span class = cF0 > ] ;
< a name = " l33 " > < / a > < / span > < span class = cF1 > while < / span > < span class = cF0 > ( less & lt ; greater )
< a name = " l34 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l35 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( * less & lt ; = pivot )
< a name = " l36 " > < / a > less + + ;
< a name = " l37 " > < / a > < / span > < span class = cF1 > else < / span > < span class = cF0 >
< a name = " l38 " > < / a > {
< a name = " l39 " > < / a > greater - - ;
< a name = " l40 " > < / a > < / span > < span class = cF5 > SwapU32 < / span > < span class = cF0 > ( less , greater ) ;
< a name = " l41 " > < / a > }
< a name = " l42 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l43 " > < / a > i = less - base ;
< a name = " l44 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( i = = num )
< a name = " l45 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF2 > //All less or equ to pivot</span><span class=cF0>
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< a name = " l46 " > < / a >
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< a name = " l47 " > < / a > < / span > < span class = cF2 > //Point greater to first less</span><span class=cF0>
< a name = " l48 " > < / a > < / span > < span class = cF1 > do < / span > < span class = cF0 > greater - - ;
< a name = " l49 " > < / a > < / span > < span class = cF1 > while < / span > < span class = cF0 > ( - - i & amp ; & amp ; * greater = = pivot ) ;
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< a name = " l50 " > < / a >
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< a name = " l51 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( i )
< a name = " l52 " > < / a > {
< a name = " l53 " > < / a > less = base + num / < / span > < span class = cFE > 2 < / span > < span class = cF0 > ; < / span > < span class = cF2 > //Pivot was not moved, point to it</span><span class=cF0>
< a name = " l54 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( less & lt ; greater )
< a name = " l55 " > < / a > < / span > < span class = cF5 > SwapU32 < / span > < span class = cF0 > ( less , greater ) ;
< a name = " l56 " > < / a > num = i ;
< a name = " l57 " > < / a > }
< a name = " l58 " > < / a > < / span > < span class = cF1 > else < / span > < span class = cF0 > < / span > < span class = cF2 > //All equ</span><span class=cF0>
< a name = " l59 " > < / a > < / span > < span class = cF1 > break < / span > < span class = cF0 > ;
< a name = " l60 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l61 " > < / a > < / span > < span class = cF1 > else < / span > < span class = cF0 > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( i & lt ; num / < / span > < span class = cFE > 2 < / span > < span class = cF0 > )
< a name = " l62 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l63 " > < / a > QuickSortU32 ( base , i ) ;
< a name = " l64 " > < / a > num - = i ;
< a name = " l65 " > < / a > base = greater ;
< a name = " l66 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l67 " > < / a > < / span > < span class = cF1 > else < / span > < span class = cF0 >
< a name = " l68 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l69 " > < / a > QuickSortU32 ( greater , num - i ) ;
< a name = " l70 " > < / a > num = i ;
< a name = " l71 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l72 " > < / a > }
< a name = " l73 " > < / a > < / span > < span class = cF1 > while < / span > < span class = cF0 > ( num & gt ; < / span > < span class = cFE > 1 < / span > < span class = cF0 > ) ;
< a name = " l74 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
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< a name = " l75 " > < / a > }
< a name = " l76 " > < / a >
< a name = " l77 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MPSort ( < / span > < span class = cF9 > I64 < / span > < span class = cF0 > dummy = < / span > < span class = cFE > 0 < / span > < span class = cF0 > )
< a name = " l78 " > < / a > {
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< a name = " l79 " > < / a > < / span > < span class = cF1 > no_warn < / span > < span class = cF0 > dummy ;
< a name = " l80 " > < / a > QuickSortU32 ( b [ < / span > < span class = cF5 > Gs < / span > < span class = cF0 > - & gt ; num ] , bn [ < / span > < span class = cF5 > Gs < / span > < span class = cF0 > - & gt ; num ] ) ;
< a name = " l81 " > < / a > < / span > < span class = cF5 > LBtr < / span > < span class = cF0 > ( & amp ; mp_not_done_flags , < / span > < span class = cF5 > Gs < / span > < span class = cF0 > - & gt ; num ) ;
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< a name = " l82 " > < / a > }
< a name = " l83 " > < / a >
< a name = " l84 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MPRadixSortDemo ( < / span > < span class = cF9 > I64 < / span > < span class = cF0 > dummy = < / span > < span class = cFE > 0 < / span > < span class = cF0 > )
< a name = " l85 " > < / a > {
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< a name = " l86 " > < / a > < / span > < span class = cF1 > no_warn < / span > < span class = cF0 > dummy ;
< a name = " l87 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > i , j , k1 , k2 ;
< a name = " l88 " > < / a > < / span > < span class = cF1 > F64 < / span > < span class = cF0 > t0 ;
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< a name = " l89 " > < / a >
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< a name = " l90 " > < / a > arg1 = < / span > < span class = cF5 > MAlloc < / span > < span class = cF0 > ( NUM * < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > I32 < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
< a name = " l91 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; NUM ; i + + )
< a name = " l92 " > < / a > arg1 [ i ] = < / span > < span class = cF5 > RandI32 < / span > < span class = cF0 > ;
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< a name = " l93 " > < / a >
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< a name = " l94 " > < / a > arg2 = < / span > < span class = cF5 > MAlloc < / span > < span class = cF0 > ( NUM * < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > I32 < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
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< a name = " l95 " > < / a >
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< a name = " l96 " > < / a > < / span > < span class = cF6 > & quot ; $ GREEN $ QuickSort $ FG $ \ n & quot ; < / span > < span class = cF0 > ;
< a name = " l97 " > < / a > t0 = < / span > < span class = cF5 > tS < / span > < span class = cF0 > ;
< a name = " l98 " > < / a > < / span > < span class = cF5 > MemCopy < / span > < span class = cF0 > ( arg2 , arg1 , < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > I32 < / span > < span class = cF7 > ) < / span > < span class = cF0 > * NUM ) ;
< a name = " l99 " > < / a > < / span > < span class = cF5 > QuickSort < / span > < span class = cF0 > ( arg2 , NUM , < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > I32 < / span > < span class = cF7 > ) < / span > < span class = cF0 > , & amp ; Compare ) ;
< a name = " l100 " > < / a > < / span > < span class = cF6 > & quot ; Time : % 9.6f \ n & quot ; < / span > < span class = cF0 > , < / span > < span class = cF5 > tS < / span > < span class = cF0 > - t0 ;
< a name = " l101 " > < / a > < / span > < span class = cF5 > D < / span > < span class = cF0 > ( arg2 + NUM / < / span > < span class = cFE > 4 < / span > < span class = cF0 > ) ;
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< a name = " l102 " > < / a >
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< a name = " l103 " > < / a > < / span > < span class = cF6 > & quot ; $ GREEN $ QuickSortU32 $ FG $ \ n & quot ; < / span > < span class = cF0 > ;
< a name = " l104 " > < / a > t0 = < / span > < span class = cF5 > tS < / span > < span class = cF0 > ;
< a name = " l105 " > < / a > < / span > < span class = cF5 > MemCopy < / span > < span class = cF0 > ( arg2 , arg1 , < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > I32 < / span > < span class = cF7 > ) < / span > < span class = cF0 > * NUM ) ;
< a name = " l106 " > < / a > QuickSortU32 ( arg2 , NUM ) ;
< a name = " l107 " > < / a > < / span > < span class = cF6 > & quot ; Time : % 9.6f \ n & quot ; < / span > < span class = cF0 > , < / span > < span class = cF5 > tS < / span > < span class = cF0 > - t0 ;
< a name = " l108 " > < / a > < / span > < span class = cF5 > D < / span > < span class = cF0 > ( arg2 + NUM / < / span > < span class = cFE > 4 < / span > < span class = cF0 > ) ;
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< a name = " l109 " > < / a >
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< a name = " l110 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; my_mp_count ; i + + )
< a name = " l111 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l112 " > < / a > < / span > < span class = cF2 > //We must do full size, just in case.</span><span class=cF0>
< a name = " l113 " > < / a > < / span > < span class = cF2 > //There will be uneven split between cores</span><span class=cF0>
< a name = " l114 " > < / a > < / span > < span class = cF2 > //depending on the distribution of rand numbers.</span><span class=cF0>
< a name = " l115 " > < / a > b [ i ] = < / span > < span class = cF5 > MAlloc < / span > < span class = cF0 > ( NUM * < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > I32 < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
< a name = " l116 " > < / a > bn [ i ] = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ;
< a name = " l117 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
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< a name = " l118 " > < / a >
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< a name = " l119 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( my_mp_count & lt ; < / span > < span class = cFE > 2 < / span > < span class = cF0 > )
< a name = " l120 " > < / a > < / span > < span class = cF5 > throw < / span > < span class = cF0 > ( < / span > < span class = cF6 > ' MultCore ' < / span > < span class = cF0 > ) ;
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< a name = " l121 " > < / a >
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< a name = " l122 " > < / a > < / span > < span class = cF6 > & quot ; $ GREEN $ MP Radix QuickSortU32 $ FG $ \ n & quot ; < / span > < span class = cF0 > ;
< a name = " l123 " > < / a > t0 = < / span > < span class = cF5 > tS < / span > < span class = cF0 > ;
< a name = " l124 " > < / a > k1 = < / span > < span class = cFE > 32 < / span > < span class = cF0 > - < / span > < span class = cF5 > Bsr < / span > < span class = cF0 > ( my_mp_count ) ;
< a name = " l125 " > < / a > k2 = my_mp_count / < / span > < span class = cFE > 2 < / span > < span class = cF0 > ;
< a name = " l126 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; NUM ; i + + )
< a name = " l127 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l128 " > < / a > j = arg1 [ i ] & gt ; & gt ; k1 + k2 ; < / span > < span class = cF2 > //This is a preliminary radix sort.</span><span class=cF0>
< a name = " l129 " > < / a > b [ j ] [ bn [ j ] + + ] = arg1 [ i ] ;
< a name = " l130 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l131 " > < / a > mp_not_done_flags = < / span > < span class = cFE > 1 < / span > < span class = cF0 > & lt ; & lt ; my_mp_count - < / span > < span class = cFE > 1 < / span > < span class = cF0 > ;
< a name = " l132 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; my_mp_count ; i + + )
< a name = " l133 " > < / a > < / span > < span class = cF5 > Spawn < / span > < span class = cF0 > ( & amp ; MPSort , < / span > < span class = cF3 > NULL < / span > < span class = cF0 > , < / span > < span class = cF3 > NULL < / span > < span class = cF0 > , i ) ;
< a name = " l134 " > < / a > < / span > < span class = cF1 > while < / span > < span class = cF0 > ( mp_not_done_flags )
< a name = " l135 " > < / a > < / span > < span class = cF5 > Yield < / span > < span class = cF0 > ;
< a name = " l136 " > < / a > j = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ;
< a name = " l137 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; my_mp_count ; i + + )
< a name = " l138 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l139 " > < / a > < / span > < span class = cF5 > MemCopy < / span > < span class = cF0 > ( & amp ; arg2 [ j ] , b [ i ] , bn [ i ] * < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > I32 < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
< a name = " l140 " > < / a > j + = bn [ i ] ;
< a name = " l141 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l142 " > < / a > < / span > < span class = cF6 > & quot ; Time : % 9.6f \ n & quot ; < / span > < span class = cF0 > , < / span > < span class = cF5 > tS < / span > < span class = cF0 > - t0 ;
< a name = " l143 " > < / a > < / span > < span class = cF5 > D < / span > < span class = cF0 > ( arg2 + NUM / < / span > < span class = cFE > 4 < / span > < span class = cF0 > ) ;
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< a name = " l144 " > < / a >
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< a name = " l147 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; my_mp_count ; i + + )
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2021-07-03 05:07:57 +01:00
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< a name = " l151 " > < / a > MPRadixSortDemo ;
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< a name = " l153 " > < / a > < / span > < span class = cF2 > /*</span><span class=cF0> Results on 8 Cores 3.397GHz Core i7:
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< a name = " l155 " > < / a > Time : 0.759998
< a name = " l156 " > < / a > < / span > < span class = cF2 > QuickSortU32 < / span > < span class = cF0 >
< a name = " l157 " > < / a > Time : 0.093684
< a name = " l158 " > < / a > < / span > < span class = cF2 > MP Radix QuickSortU32 < / span > < span class = cF0 >
< a name = " l159 " > < / a > Time : 0.045450
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