3 ms·
Nice work! In addition to dahart’s suggestions, I’d be curious to see some of your profiling that you did. Like, what’s the breakdown of the timing now? Are yo
by boulos 6y ago
Nice work!
In addition to dahart’s suggestions, I’d be curious to see some of your profiling that you did. Like, what’s the breakdown of the timing now? Are you PCIe limited, or have you overlapped the I/O with enough compute that it’s only XX% overhead?
How much memory do you need for all the geometry and BVHs? (Particularly post compression). I’m curious if this just barely fits on an A100 or similar.
Again, nice work!
- chellmuth 6y agoThanks! The current version requires around 18GB of total GPU memory. Right now I am heavily bottlenecked by the memory transfer costs, but there is some low-hanging fruit to amortize them by doing much more compute per snapshot transfer. After that, I'm very curious to see what the profiler will show.
- boulos 6y agoOoh! With Dave’s compression suggestion, I wonder if that gets you below the 16 GB of a T4 (which have RTX).