OutOfMemoryException on declaration of Large Array

by

Each double is 8 bytes, so you’re trying to allocate a single array with just over 5GB. The CLR has a per-object limit of around 2GB IIRC, even for a 64-bit CLR. In other words, it’s not the total amount of memory available that’s the problem (although obviously you’ll have issues if you don’t have enough memory), but the per-object size.

I suggest you split it into smaller arrays, perhaps behind a facade of some description. I don’t believe there’s any way to workaround that limit for a single array.

EDIT: You could go for an array of arrays – aka a jagged array:

double[][] array = new double[12000][];
for (int i = 0; i < array.Length; i++)
{
    array[i] = new double[55000];
}

Would that be acceptable to you?

(You can’t use a rectangular array (double[,]) as that would have the same per-object size problem.)

More Related Contents:

  1. How do I clone a generic list in C#?
  2. ASP.NET MVC $.post call returning string…need help with format for jqGrid
  3. What does null! statement mean?
  4. c# continuously read file
  5. Windows Forms Splash Screen – Show a form while loading main form
  6. AppSettings get value from .config file
  7. What is the right way to populate a DropDownList from a database?
  8. How can I sort a string of text followed by a number using LINQ
  9. Arbitrary-Precision Decimals in C# [duplicate]
  10. Why does C# limit the set of types that can be declared as const?
  11. Control cannot fall through from one case label
  12. How do I automatically display all properties of a class and their values in a string? [duplicate]
  13. Error making Azure Management Library API call when authenticating with azure active directory
  14. Invalid URI: The format of the URI could not be determined
  15. datetime to string with time zone
  16. How do I select a random value from an enumeration?
  17. Random number in a loop [duplicate]
  18. Can the Visual Studio Debugger display strings unquoted/unescaped?
  19. Take screenshot from window content (without border)
  20. Unrolled Loop works, for loop does not work [duplicate]
  21. Meaning of curly braces after the “is” operator
  22. Giving application elevated UAC
  23. How to ignore empty object literals in the produced JSON?
  24. How do I programmatically save an image from a URL?
  25. How to get the output of a System.Diagnostics.Process?
  26. smtpclient ” failure sending mail”
  27. Tool to refactor C# var to explicit type
  28. Get a list of all tree nodes (in all levels) in TreeView Controls
  29. Timeout pattern on task-based asynchronous method in C#
  30. Using Include in Entity Framework 4 with lambda expressions

Leave a Comment