Is there an efficient way to take a subset of a C# array and pass it to another peice of code (without modifying the original array)? I use CUDA.net which has a function which copies an array to the GPU. I would like to e.g. pass the function a 10th of the array and thus copy each 10th of the array to the GPU seperately (for pipelining purposes).
Copying the array in this way should be as efficient as copying it in one go. It can be done with unsafe code and just referencing the proper memory location but other than that I’m not sure. The CopyTo function copies the entire array to another array so this does not appear useful.
Okay, I’d misunderstood the question before.
What you want is System.Buffer.BlockCopy or System.Array.Copy.
The LINQ ways will be hideously inefficient. If you’re able to reuse the buffer you’re copying into, that will also help the efficiency, avoiding creating a new array each time – just copy over the top. Unless you can divide your ‘big’ array up equally though, you’ll need a new one for the last case.