Tunç Bahçecioğlu » 2010 http://www.tuncbahcecioglu.com carpe omnium Tue, 26 Oct 2010 13:43:06 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 VS2010 good (sort of), vs2005 bad http://www.tuncbahcecioglu.com/posts/vs2010-good-sort-of-vs2005-bad/ http://www.tuncbahcecioglu.com/posts/vs2010-good-sort-of-vs2005-bad/#comments Tue, 26 Oct 2010 13:43:06 +0000 tunc http://www.tuncbahcecioglu.com/posts/vs2010-good-sort-of-vs2005-bad/ I multiplied two 1000×1000 float matrices using the Eigen library on VS2005 and VS2010 with different optimizations, here are the results:

  VS2005 (s) VS2010 ()
none 2.873 2.812
OpenMP 1.759 1.671
SSE 3.258 2.911
SSE2 5.057 0.224
OpenMP + SSE 1.807 1.598
OPENMP + SSE2 2.774 0.134

image

SO,

  • OpenMP support of Eigen works well.
  • Shouldn’t SSE work for floats ???
  • VS2005 is horrible with vectorization optimizations.
  • OPENMP + SSE2 + VS2010 with Eigen kicks ass!!!
]]> http://www.tuncbahcecioglu.com/posts/vs2010-good-sort-of-vs2005-bad/feed/ 0 what i need from delphi 2010 http://www.tuncbahcecioglu.com/posts/what-i-need-from-delphi-2010/ http://www.tuncbahcecioglu.com/posts/what-i-need-from-delphi-2010/#comments Sun, 02 Aug 2009 01:55:51 +0000 tunc http://www.tuncbahcecioglu.com/posts/what-i-need-from-delphi-2010/
  • 64 bit compiler
  • OpenMP
  • Strict rules about data encapsulation
  • Getting rid of unit = namespace philosophy
  • Better compiler, fast is not always good enough!
  • Better editor, Visual Studio is faaar batter right now.
    • ]]>     http://www.tuncbahcecioglu.com/posts/what-i-need-from-delphi-2010/feed/ 0