https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Parallel-Quicksort-1-0/m-p/848946#M1805 <P>Hello </P><P>Parallel Quicksort using two cores, it is for educational purpose...</P><P>It uses my Thread Pool Engine and quicksort two arrays in parallel <BR />and merge them.... </P><P>Note: On Delphi it gave me 1.7x on two cores - with more optimization, <BR />delphi will give you better scalability...- . Freepascal gave me just 1.2x, <BR />so, FreePascal still have to be optimized on 'some' parts for better parallel <BR />computing...</P><P>And please look at pqsort.pas inside the zip file - compile and execute it... </P><P><BR />You can download Parallel Quicksort from:</P><P><A href="http://pages.videotron.com/aminer/">http://pages.videotron.com/aminer/</A></P><P><BR />Language: FPC Pascal v2.2.0+ / Delphi 7+: <A href="http://www.freepascal.org/">http://www.freepascal.org/</A> </P><P><BR />Operating Systems: Win , Linux and Mac (x86). </P><P><BR />Required FPC switches: -O3 -Sd -dFPC -dWin32 -dFreePascal </P><P><BR />-Sd for delphi mode.... </P><P><BR />Required Delphi switches: -DMSWINDOWS -$H+ </P><P><BR />For Delphi 5,6,7 use -DDelphi </P><P><BR />For Delphi 2005,2006,2007,2009,2010+ use the switch -DDELPHI2005+ </P><P><BR />Sincerely, <BR />Amine Moulay Ramdane. </P><P><BR /><BR /></P> Sat, 10 Apr 2010 03:23:17 GMT aminer10 2010-04-10T03:23:17Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Parallel-Quicksort-1-0/m-p/848946#M1805 <P>Hello </P><P>Parallel Quicksort using two cores, it is for educational purpose...</P><P>It uses my Thread Pool Engine and quicksort two arrays in parallel <BR />and merge them.... </P><P>Note: On Delphi it gave me 1.7x on two cores - with more optimization, <BR />delphi will give you better scalability...- . Freepascal gave me just 1.2x, <BR />so, FreePascal still have to be optimized on 'some' parts for better parallel <BR />computing...</P><P>And please look at pqsort.pas inside the zip file - compile and execute it... </P><P><BR />You can download Parallel Quicksort from:</P><P><A href="http://pages.videotron.com/aminer/">http://pages.videotron.com/aminer/</A></P><P><BR />Language: FPC Pascal v2.2.0+ / Delphi 7+: <A href="http://www.freepascal.org/">http://www.freepascal.org/</A> </P><P><BR />Operating Systems: Win , Linux and Mac (x86). </P><P><BR />Required FPC switches: -O3 -Sd -dFPC -dWin32 -dFreePascal </P><P><BR />-Sd for delphi mode.... </P><P><BR />Required Delphi switches: -DMSWINDOWS -$H+ </P><P><BR />For Delphi 5,6,7 use -DDelphi </P><P><BR />For Delphi 2005,2006,2007,2009,2010+ use the switch -DDELPHI2005+ </P><P><BR />Sincerely, <BR />Amine Moulay Ramdane. </P><P><BR /><BR /></P> Sat, 10 Apr 2010 03:23:17 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Parallel-Quicksort-1-0/m-p/848946#M1805 aminer10 2010-04-10T03:23:17Z