Re:CUDA Grep
by ben509 on Thursday June 27, 2019 @01:14PM
(#20296419)
> They did not include the time it took to transfer the input file from memory to the GPU
Fair point, it's more support for this HN post[2] making the case for memory-mapping files to GPU.
> This is a neat project, but there is a reason we are not using the GPU for regex matching.
I think it's more interesting that it's a general facility for running automata on a GPU, as it's opening up the universe of things that can be accelerated by a GPU. For instance, Numba[1] is a library to run arbitrary math code, and it has a feature for generating code to run on the GPU.
Re:CUDA Grep
by shaklee3 on Thursday June 27, 2019 @01:51PM
(#20296794)
CUDA already has this built in (for many years) using UVM. That won't take away the bottleneck of the transfer, but it does make it transparent to the user by handling all the paging/copies.
Fair point, it's more support for this HN post[2] making the case for memory-mapping files to GPU.
> This is a neat project, but there is a reason we are not using the GPU for regex matching.
I think it's more interesting that it's a general facility for running automata on a GPU, as it's opening up the universe of things that can be accelerated by a GPU. For instance, Numba[1] is a library to run arbitrary math code, and it has a feature for generating code to run on the GPU.
[1]: http://numba.pydata.org/numba-doc/latest/cuda/index.html
[2]: https://news.ycombinator.com/item?id=11892030