Diff for "AmdahlsLaw"

Differences between revisions 2 and 24 (spanning 22 versions)

Notice that we are talking about the entire task here and that performance (speedup) is defined in terms of execution time! So we have to define the following:

latex2()

This gives a new Execution time of

latex2()

So we have latex2($$SpeedupOverall=\frac{1}{1-FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}})

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-  ⇤ ← Revision 2 as of 2004-01-25 18:27:14 → 
  Size: 1144
  Editor: yakko
  Comment:
+   ← Revision 24 as of 2005-06-28 01:18:43 → ⇥
  Size: 709
  Editor: yakko
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 3:
-{{{
           Performance for entire task using the enhancement when possible
Speedup = -----------------------------------------------------------------
              Performance for entire taks without using the enhancement
+[[latex2()]]
-Line 13:
+Line 10:
-{{{
                  Old Execution Time
SpeedupOverall = --------------------
                  New Execution Time
+[[latex2()]]
-Line 18:
+Line 12:
-                                                                    FractionEnhanced
New Execution Time = Old Execution Time ( (1 - FractionEnhanced) + ------------------ )
                                                                    SpeedupEnhanced
+This gives a new Execution time of
-Line 22:
+Line 14:
--->
                                     1
SpeedupOverall = --------------------------------------------
                                         FractionEnhanced
               (1 - FractionEnhanced) + ------------------ )
                                         SpeedupEnhanced
+[[latex2()]]
-Line 29:
+Line 16:
-}}}
+So we have
[[latex2($$SpeedupOverall=\frac{1}{1-FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}})]]