Changeset 17036

Timestamp:

06/26/19 11:22:58 (5 years ago)

Author:

mkommend

Message:

#2435: Changed rng in ALGLIB to have a separate instance per thread.

Location:

branches/2435-alglib_3_15/HeuristicLab.ExtLibs/HeuristicLab.ALGLIB

Files:

• 3.15.0/ALGLIB-3.15.0/ap.cs (modified) (3 diffs)
• 3.15.0/HeuristicLab.ALGLIB-3.15.0/ALGLIB changes by HEAL.txt (added)
• 3.15.0/HeuristicLab.ALGLIB-3.15.0/HeuristicLab.ALGLIB-3.15.0.csproj (modified) (1 diff)
• 3.7.0/HeuristicLab.ALGLIB-3.7.0/HeuristicLab.ALGLIB-3.7.0.csproj (modified) (1 diff)

branches/2435-alglib_3_15/HeuristicLab.ExtLibs/HeuristicLab.ALGLIB/3.15.0/ALGLIB-3.15.0/ap.cs

@@ -762 +762 @@
     public class math
     {
-        //public static System.Random RndObject = new System.Random(System.DateTime.Now.Millisecond);
-        public static System.Random rndobject = new System.Random(System.DateTime.Now.Millisecond + 1000*System.DateTime.Now.Second + 60*1000*System.DateTime.Now.Minute);
+    //public static System.Random RndObject = new System.Random(System.DateTime.Now.Millisecond);
+    [ThreadStatic] //mkommend: added thread static attribute to RNG to have a separate instance per thread and allow modification of the seed
+    public static System.Random rndobject = new System.Random(System.DateTime.Now.Millisecond + 1000*System.DateTime.Now.Second + 60*1000*System.DateTime.Now.Minute);
 
         public const double machineepsilon = 5E-16;
@@ -777 +778 @@
         {
             double r = 0;
+            if (rndobject == null) rndobject = new System.Random(System.DateTime.Now.Millisecond + 1000 * System.DateTime.Now.Second + 60 * 1000 * System.DateTime.Now.Minute);
             lock(rndobject){ r = rndobject.NextDouble(); }
             return r;
@@ -783 +785 @@
         {
             int r = 0;
+            if (rndobject == null) rndobject = new System.Random(System.DateTime.Now.Millisecond + 1000 * System.DateTime.Now.Second + 60 * 1000 * System.DateTime.Now.Minute);
             lock(rndobject){ r = rndobject.Next(N); }
             return r;

branches/2435-alglib_3_15/HeuristicLab.ExtLibs/HeuristicLab.ALGLIB/3.15.0/HeuristicLab.ALGLIB-3.15.0/HeuristicLab.ALGLIB-3.15.0.csproj

@@ -83 +83 @@
   </ItemGroup>
   <ItemGroup>
+    <Content Include="ALGLIB changes by HEAL.txt" />
     <Content Include="ALGLIB License-3.15.0.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>

branches/2435-alglib_3_15/HeuristicLab.ExtLibs/HeuristicLab.ALGLIB/3.7.0/HeuristicLab.ALGLIB-3.7.0/HeuristicLab.ALGLIB-3.7.0.csproj

@@ -127 +127 @@
   </ItemGroup>
   <ItemGroup>
+    <Content Include="ALGLIB changes by HEAL.txt" />
     <Content Include="ALGLIB License-3.7.0.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>