姫野ベンチをやってみる

β版の XL fortran for MacOS Xと fink経由でインストールした g77で姫野ベンチを実行してみました，
なお，コンパイルオプションは， ここを参考にしました．

• XL Fortran for Mac OS X Beta
  

  xlf -qthreaded -O5 -qtune=auto -qarch=auto -qunroll=auto -qextname=dtime himenoBMTxp_s.f
  

  で， a.outを実行してみると，

     mimax= 129  mjmax= 65  mkmax= 65
    imax= 128  jmax= 64  kmax= 64
    Start rehearsal measurement process.
    Measure the performance in 3 times.
     MFLOPS: 133.5218658   time(s): 0.3700000048 0.3292582231E-02
   Now, start the actual measurement process.
   The loop will be excuted in 486  times.
   This will take about one minute.
   Wait for a while.
    Loop executed for  486  times
    Gosa : 0.9902104503E-03
    MFLOPS: 133.0557098   time(s): 60.14999771
    Score based on Pentium III 600MHz : 1.606177092
    

  でした．

• g77
  

     g77 -O5 -funroll-loops ./himenoBMTxp_s.f
      

  で a.outを実行すると，

         mimax= 129 mjmax= 65 mkmax= 65
    imax= 128 jmax= 64 kmax= 64
    Start rehearsal measurement process.
    Measure the performance in 3 times.
     MFLOPS:  112.279747  time(s):  0.439999998  0.00328862783
   Now, start the actual measurement process.
   The loop will be excuted in 409 times.
   This will take about one minute.
   Wait for a while.
    Loop executed for  409 times
    Gosa :  0.00112893619
    MFLOPS:  118.100784  time(s):  57.0299988
    Score based on Pentium III 600MHz :  1.42564929
   

  xlfには劣るものの，思ったよりは優秀でした．というか， xlfが Altivec効いていないのかな？？？

• 追伸：ちなみに， Xeon 1.8GHzで ifcでコンパイルした結果は，

      mimax=         129  mjmax=          65  mkmax=          65
    imax=         128  jmax=          64  kmax=          64
    Start rehearsal measurement process.
    Measure the performance in 3 times.
     MFLOPS:   411.6924       time(s):  0.1200000      3.2946540E-03
   Now, start the actual measurement process.
   The loop will be excuted in        1500  times.
   This will take about one minute.
   Wait for a while.
    Loop executed for         1500  times
    Gosa :  2.0512370E-04
    MFLOPS:   414.8034       time(s):   59.55000    
    Score based on Pentium III 600MHz :   5.007285 
     

  がっくし．．．．やっぱ G5じゃないと勝てないか．．．．

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