Skip to content

Bluestein: 3-smooth padding, embedded call graph, cutoff 47 #136

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
pankgeorg wants to merge 7 commits into
base: main
Choose a base branch
from
Open

Bluestein: 3-smooth padding, embedded call graph, cutoff 47 #136

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
7 commits
Select commit Hold shift + click to select a range
8411861
Store twiddle tables and Bluestein data in the plan
pankgeorg Aug 29, 2026
33507b8
Bluestein: 3-smooth padding, embedded call graph, cutoff 47
pankgeorg Aug 29, 2026
919628e
docs: list bluestein_pad_length
pankgeorg Aug 29, 2026
071712b
Bluestein padding: calibrate the 3-smooth cost factor to 1.9 and keep…
pankgeorg Aug 29, 2026
42fccda
Bluestein: conservative 3-smooth threshold (2.1) and cutoff 29, from …
pankgeorg Aug 29, 2026
5b96dff
Bluestein padding: make the cost factor a keyword and state that 2.1 …
pankgeorg Aug 29, 2026
cc6a69b
test: correct the expected 3-smooth pad for N = 2200
pankgeorg Aug 29, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions docs/src/dev.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,26 @@ CallGraphNode
CallGraph
CallGraphNode!
fft!
fft_composite!
fft_dft!
fft_pow2_radix4!
fft_pow3!
fft_bluestein!
```

## Twiddle factors

Twiddle factors are computed once, at plan time, and stored per node of the
call graph in the layout each kernel reads sequentially.

```@docs
twiddle
unit_roots
dft_twiddles
composite_twiddles
pow2_twiddles
pow3_twiddles
node_twiddles
BluesteinScratch
bluestein_pad_length
```
Loading
Loading