Skip to content
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

Jump to bottom

Basic support for axis simplification and arbitrary order in iterators #979

Open
wants to merge 8 commits into
base: master
Choose a base branch
from
Open

Basic support for axis simplification and arbitrary order in iterators #979

wants to merge 8 commits into from

Conversation

bluss
Copy link
Member

@bluss bluss commented Apr 11, 2021 •
edited
Loading

  • In some cases we can modify the iterator without changing produced element order - for example changing shape [10, 1] to shape [1, 10]
  • In some cases we can merge axes without changing visible element order. Iterating shape [2, 5, 3] as if it is shape [1, 1, 30], if the strides allow
  • In some cases we want to use arbitrary order (here it becomes the in-memory order)
  • In some cases we don't want to change anything (standard order indexed iterator)

Current state of the PR: groundwork, not actually used in any iterator

@bluss bluss mentioned this pull request Apr 11, 2021
Merged
@bluss bluss force-pushed the iterator-order branch 4 times, most recently from e5224a5 to 49bf28a Compare April 12, 2021 20:42
@bluss bluss force-pushed the iterator-order branch 3 times, most recently from 08068a8 to 2d6bcde Compare May 5, 2021 16:00
@bluss bluss marked this pull request as ready for review May 5, 2021 16:16
@jturner314 jturner314 mentioned this pull request May 8, 2021
Merged
@bluss bluss modified the milestones: 0.15.2, 0.15.3 May 10, 2021
@bluss bluss modified the milestones: 0.15.3, 0.16.0 Jun 5, 2021
@bluss
FIX: Make internal iterator types and functions pub(crate)
1a8377e 
These `pub` here actually predate the pub(crate) feature, and they
should just be `pub(crate)` or lower since they are unreachable outside
the crate.
@bluss
FIX: Add isize get/setters for dimensions as strides
572dea0
@bluss
FEAT: Add dimension::squeeze to remove dimensions with len == 1
d223bc6
@bluss
TEST: Add iteration and sum (fold) benchmarks for row/col matrices
9438d93 
This is special for arrays of shape 1 x n or n x 1; add iterator and
iterator sum (fold) benchmarks.
@bluss
FEAT: Add dimension merge function to merge contiguous axes
21df00f
@bluss
FEAT: Implement order optimizations for Baseiter
a3d26b6 
Implement axis merging - this preserves order of elements in the
iteration but might simplify iteration. For example, in a contiguous
matrix, a shape like [3, 4] can be merged into [1, 12].

Also allow arbitrary order optimization - we then try to iterate in
memory order by sorting all axes, currently.
@bluss
MAINT: Allow another clippy lint
1e05bae 
This one complains about if let Some(_) = option; which I still think is
just as fine as if option.is_some(); `if let` is a nice Rust feature
that works the same way on all enums, no reason to prefer
option-specific methods like `is_some`.
@bluss bluss mentioned this pull request Mar 31, 2024
Open
@bluss bluss modified the milestones: 0.16.0, 0.17.0 Apr 6, 2024
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers

@jturner314 jturner314 jturner314 left review comments

Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
0.17.0
Development

Successfully merging this pull request may close these issues.
2 participants
@bluss @jturner314