Transposed Texture -> degraded accuracy?

Hi all,

When I transpose one of my 2D textures (originally: couple thousand X 3, four-channel), my results suddenly become two orders of magnitude less accurate (1e-7 to 1e-5). Has anybody seen something like this?

I’m pretty puzzled.


Are you using cudaFilterModeLinear? I’m wondering if some weird rounding error in the indexing is causing you to access the texture slightly offset from the point you want.

Nope, I’m using point rounding filtering.

Huh, well, I’m out of ideas then. Hopefully someone else has seen this…

Whoops. I must’ve been imagining this–I can’t reproduce it any more. Weird.

Sorry for the noise.