Home/ Questions/Q 8039109
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-05T03:27:52+00:00

This isn’t necessarily CUDA specific. Basically, on the GPU I have a 1D array,

  • 0

This isn’t necessarily CUDA specific.

Basically, on the GPU I have a 1D array, but in the C code, I have a 3d array. I need to copy this array back and forth, and I need to be able to linear-ize the indices properly. That means that I have the pick the correct numbering scheme, as in is (1, 0, 0) linear-ized as 1, or is (0, 1, 0), or (0, 0, 1), in the form (x, y, z)?

The 3d arrays are declared as array[X][Y][Z]. When I copy that 3D array into an equal sized 1d array, how will the computer naturally number it? However the computer collapses down the 3d array, I need to do the exact same when I try to convert between the two. I hope I am making clear what I want to say, but if you have any questions, please ask. Thank you.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Arrays in C are kept in row-major order, see this for more details.

    So the first element is array[0][0][0], the second is array[0][0][1], and etc.

    • 0