Unify the two matrix types by suri-kumkaran · Pull Request #1269 · microsoft/DiskANN

suri-kumkaran · 2026-07-21T22:36:45Z

We carry two matrix types for overlapping jobs: the dense MatrixBase in diskann-utils (the Matrix/MatrixView everything reaches for), and diskann-quantization's Repr-generic Mat<Standard<T>>, which also covers the exotic layouts (block-transposed, quantized). This PR folds them into one.

The Repr framework is the more capable of the two, so it stays — moving into diskann-utils, where the dense types already live. Dense becomes a thin alias layer (Matrix<T> = Mat<RowMajor<T>>) that keeps every existing name, so callers barely notice, and the old MatrixBase is deleted.

A few things worth flagging:

Standard is renamed to RowMajor — the codebase already says "row-major" everywhere; Standard was the odd one out.
The generic constructor Mat::new(repr, init) becomes Mat::from_repr, freeing plain new for the dense Matrix::new(gen, rows, cols) most callers use.
Quantization keeps its block-transposed and quantized layouts; they now impl diskann_utils::matrix::Repr instead of owning the framework.
No crate-root re-export in diskann-utils — it's already a grab-bag, so the types stay under diskann_utils::matrix.

How to review

Most of the diff (~110 files) is mechanical and safe to skim: Standard→RowMajor, MatrixBase→Matrix, the constructor renames, views::*→matrix::*. The parts that want real attention:

diskann-utils/src/matrix.rs — the heart of it. Git tracks it as a rename of diskann-quantization/src/multi_vector/matrix.rs, so read it as "that file, Standard→RowMajor, plus the dense aliases/API and DenseData folded in."
lib.rs, the deleted views.rs, strided.rs — the module wiring, and where MatrixBase used to live.
multi_vector/mod.rs, the deleted multi_vector/matrix.rs, block_transposed.rs — the quantization side now building on the shared framework.
product/tables/basic.rs and minmax/multi/meta.rs — the only spots with real logic changes, not mechanical ones.

…rd<T>> type

Copilot

Pull request overview

This PR unifies DiskANN’s matrix abstractions by moving the more general Repr-based Mat framework into diskann-utils::matrix and rebuilding the dense Matrix/MatrixView APIs as thin row-major aliases (Matrix<T> = Mat<RowMajor<T>>). Call sites across the workspace are updated from views::* to matrix::*, and Standard is renamed to RowMajor for consistency with existing terminology.

Changes:

Introduces diskann-utils::matrix as the shared home for Mat + Repr and the dense row-major Matrix alias layer; removes/rewires the previous views usage.
Renames Standard → RowMajor and updates constructors (Mat::new(repr, init) → Mat::from_repr(...), dense Matrix::new(gen, rows, cols) usage).
Updates quantization/table code to depend on the shared diskann_utils::matrix framework and adjusts a small number of non-mechanical invariants/paths (e.g., pivot-dimension checks).

Reviewed changes

Copilot reviewed 126 out of 126 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
diskann/src/graph/workingset/map.rs	Updates doctests/tests to import `Matrix` from `diskann_utils::matrix`.
diskann/src/graph/test/synthetic.rs	Switches graph test helpers to `diskann_utils::matrix::{Init, Matrix}`.
diskann/src/graph/test/provider.rs	Updates matrix imports to the new module.
diskann/src/graph/test/cases/grid_insert.rs	Updates `MatrixView` import path to `diskann_utils::matrix`.
diskann/src/graph/start_point.rs	Rewires `Matrix`/`MatrixView` imports from `views` → `matrix`.
diskann/src/graph/glue.rs	Updates `Batch` docs/impl to target `diskann_utils::matrix::Matrix`.
diskann/src/flat/test/provider.rs	Switches test provider to `diskann_utils::matrix::Matrix`.
diskann/src/error/ann_error.rs	Updates conversion to new `diskann_utils::matrix::TryFromError` type.
diskann-utils/src/strided.rs	Adapts strided matrix utilities to new dense view types and `DenseData` traits under `matrix`.
diskann-utils/src/sampling/medoid.rs	Updates sampling code to use `crate::matrix::MatrixView` (and tests to `Init/Matrix`).
diskann-utils/src/sampling/latin_hypercube.rs	Switches LHS sampling to `crate::matrix::{Matrix, MatrixView}` (and tests).
diskann-utils/src/matrix.rs	Adds the unified `Mat`/`Repr` framework + dense row-major aliases and constructors.
diskann-utils/src/lib.rs	Removes `views` module export and adds `pub mod matrix`.
diskann-utils/src/io.rs	Rewires IO helpers to use `crate::matrix::{Matrix, MatrixView}` (and `Init` in tests).
diskann-tools/src/utils/ground_truth.rs	Updates ground-truth utility to consume `diskann_utils::matrix::Matrix`.
diskann-quantization/tests/compile-fail/multi/matref_rows.stderr	Mechanical `Standard` → `RowMajor` update in expected compiler output.
diskann-quantization/tests/compile-fail/multi/matref_rows.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matref_get_row.stderr	Mechanical `Standard` → `RowMajor` update in expected compiler output.
diskann-quantization/tests/compile-fail/multi/matref_get_row.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_rows.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_rows_mut.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_reborrow.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_reborrow_mut.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_invariant.stderr	Mechanical `Standard` → `RowMajor` update in expected compiler output.
diskann-quantization/tests/compile-fail/multi/matmut_invariant.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_get_row.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_get_row_mut.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/matmut_as_view_borrows.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_rows.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_rows_mut.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_reborrow.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_reborrow_mut.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_invariant.stderr	Mechanical `Standard` → `RowMajor` update in expected compiler output.
diskann-quantization/tests/compile-fail/multi/mat_invariant.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_get_row.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_get_row_mut.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_as_view.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/tests/compile-fail/multi/mat_as_view_mut.rs	Updates compile-fail harness to new constructor naming and `RowMajor`.
diskann-quantization/src/views.rs	Switches quantization views to `diskann_utils::matrix::{DenseData, MutDenseData}`.
diskann-quantization/src/utils.rs	Updates helper utilities to use `diskann_utils::matrix::MatrixView` (and tests).
diskann-quantization/src/test_util.rs	Switches test utilities to `diskann_utils::matrix::Matrix`.
diskann-quantization/src/spherical/quantizer.rs	Updates matrix imports/usage and adapts tests to `matrix::{self, Matrix}`.
diskann-quantization/src/spherical/iface.rs	Updates docs/tests to use `diskann_utils::matrix::{Matrix, MatrixView}`.
diskann-quantization/src/scalar/train.rs	Updates scalar training signature to consume `matrix::MatrixView`.
diskann-quantization/src/scalar/quantizer.rs	Updates docs/tests to new `matrix` module paths.
diskann-quantization/src/scalar/mod.rs	Updates module docs to use `diskann_utils::matrix::Matrix`.
diskann-quantization/src/product/train.rs	Updates product-quantizer training signatures to `matrix::MatrixView`.
diskann-quantization/src/product/tables/transposed/table.rs	Replaces `MutMatrixView` with `MatrixViewMut` and rewires table compression APIs to new types.
diskann-quantization/src/product/tables/transposed/pivots.rs	Updates tests/helpers to use `diskann_utils::matrix`.
diskann-quantization/src/product/tables/test.rs	Updates test helper trait bounds from `MutMatrixView` → `MatrixViewMut`.
diskann-quantization/src/product/tables/basic.rs	Refactors pivot storage to owned/borrowed via a `PivotTable` abstraction and fixes dimension invariant to `ncols`.
diskann-quantization/src/multi_vector/mod.rs	Switches `multi_vector` to re-export `diskann_utils::matrix` types and `RowMajor`.
diskann-quantization/src/multi_vector/distance/mod.rs	Updates docs to use `RowMajor` and `MatRef::from_repr`.
diskann-quantization/src/multi_vector/distance/max_sim.rs	Updates docs to refer to `MatRef<RowMajor<_>>`.
diskann-quantization/src/multi_vector/distance/kernels/tiled_reduce.rs	Rewires tests and constructors to `RowMajor` + `from_repr`.
diskann-quantization/src/multi_vector/distance/kernels/layouts.rs	Updates layout binding impl to `MatRef<RowMajor<T>>`.
diskann-quantization/src/multi_vector/distance/kernels/f32/mod.rs	Updates kernel signatures from `Standard` → `RowMajor`.
diskann-quantization/src/multi_vector/distance/kernels/f16.rs	Updates kernel signatures from `Standard` → `RowMajor`.
diskann-quantization/src/multi_vector/distance/kernel.rs	Updates object-safe kernel trait to accept `MatRef<RowMajor<T>>`.
diskann-quantization/src/multi_vector/distance/fallback.rs	Updates fallback kernels and docs to use `RowMajor` and `from_repr`.
diskann-quantization/src/multi_vector/distance/factory.rs	Updates arch-dispatch paths to use `RowMajor` matrix views.
diskann-quantization/src/multi_vector/block_transposed.rs	Updates block-transposed impls to use `matrix::{MatrixView, MatrixViewMut}` and adapts `NewOwned` impl shape.
diskann-quantization/src/minmax/multi/mod.rs	Updates docs/examples to `RowMajor` and `Mat::from_repr`.
diskann-quantization/src/minmax/multi/meta.rs	Updates matrix type parameters (`Standard` → `RowMajor`) and tweaks allocation strategy.
diskann-quantization/src/minmax/multi/max_sim.rs	Updates tests to construct `RowMajor` input views and use `Mat::from_repr`.
diskann-quantization/src/binary/quantizer.rs	Updates tests to import `Matrix` from `diskann_utils::matrix`.
diskann-quantization/src/algorithms/transforms/random_rotation.rs	Rewires stored transform matrix type and constructors to `diskann_utils::matrix::Matrix`.
diskann-quantization/src/algorithms/kmeans/plusplus.rs	Switches `MutMatrixView` APIs to `MatrixViewMut` and updates tests.
diskann-quantization/src/algorithms/kmeans/lloyds.rs	Switches `MutMatrixView` APIs to `MatrixViewMut` and updates imports/tests.
diskann-quantization/src/algorithms/hadamard.rs	Updates tests to use `diskann_utils::matrix::{self, Matrix, MatrixView}`.
diskann-providers/src/utils/storage_utils.rs	Updates provider utilities to use `diskann_utils::matrix::{Matrix, MatrixView}`.
diskann-providers/src/utils/file_util.rs	Updates metadata/file utils to use `diskann_utils::matrix::Matrix`.
diskann-providers/src/test_utils/search_utils.rs	Updates test utils to `diskann_utils::matrix::MatrixView`.
diskann-providers/src/storage/pq_storage.rs	Updates PQ storage and tests to `diskann_utils::matrix` view types.
diskann-providers/src/storage/index_storage.rs	Updates tests to `diskann_utils::matrix::MatrixView`.
diskann-providers/src/model/pq/views.rs	Updates PQ model view conversions to new `matrix::TryFromError`.
diskann-providers/src/model/pq/strided.rs	Updates strided PQ conversion bounds to `matrix::DenseData`.
diskann-providers/src/model/pq/pq_construction.rs	Switches mutable matrix views to `MatrixViewMut` and updates call sites.
diskann-providers/src/model/pq/fixed_chunk_pq_table.rs	Updates PQ table construction to use `Matrix::try_from` and rewires view return types.
diskann-providers/src/model/pq/debug.rs	Updates PQ comparison utilities to `matrix::MatrixView` types.
diskann-providers/src/model/graph/provider/determinant_diversity.rs	Updates determinant-diversity to accept `MatrixViewMut` candidates.
diskann-providers/src/model/graph/provider/async_/inmem/spherical.rs	Updates tests and dataset construction to `diskann_utils::matrix`.
diskann-providers/src/model/graph/provider/async_/inmem/scalar.rs	Updates scalar in-mem tests to `matrix::MatrixView`.
diskann-providers/src/model/graph/provider/async_/inmem/full_precision.rs	Updates provider implementation to use `diskann_utils::matrix::Matrix`.
diskann-providers/src/index/diskann_async.rs	Updates training/test helpers to use `diskann_utils::matrix` and rewires signatures.
diskann-garnet/src/quantization.rs	Updates Garnet quantization interfaces/tests to `diskann_utils::matrix`.
diskann-garnet/src/provider.rs	Updates provider matrix imports and a `MatrixView::try_from` call site to new slice reference forms.
diskann-disk/src/storage/quant/pq/pq_generation.rs	Switches compressor interfaces from `MatrixBase` to `MatrixView/MatrixViewMut`.
diskann-disk/src/storage/quant/pq/pq_dataset.rs	Updates PQ dataset storage to use `diskann_utils::matrix::Matrix`.
diskann-disk/src/storage/quant/generator.rs	Updates generator logic to use `matrix::MatrixView/MatrixViewMut`.
diskann-disk/src/storage/quant/compressor.rs	Updates compressor trait to accept `MatrixViewMut<u8>`.
diskann-disk/src/search/provider/disk_provider.rs	Updates disk provider to import `Matrix` from `diskann_utils::matrix`.
diskann-disk/src/search/pq/quantizer_preprocess.rs	Updates scratch view construction to `matrix::MatrixViewMut`.
diskann-disk/src/build/builder/quantizer.rs	Updates build-time quantizer training input type to `matrix::MatrixView`.
diskann-bftree/src/quant.rs	Updates quantizer test setup to `diskann_utils::matrix::{Init, Matrix}`.
diskann-bftree/src/provider.rs	Updates provider docs/tests to `diskann_utils::matrix` types.
diskann-benchmark/src/utils/datafiles.rs	Updates benchmark dataset loading and conversions to `diskann_utils::matrix`.
diskann-benchmark/src/multi_vector/driver.rs	Updates multi-vector benchmark types to `RowMajor` (but still uses `Mat::from_fn`).
diskann-benchmark/src/index/streaming/managed.rs	Updates streaming managed index benchmark to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/index/streaming/full_precision.rs	Updates full-precision streaming benchmark to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/index/inmem/spherical.rs	Updates in-mem spherical benchmark to `matrix::Matrix`.
diskann-benchmark/src/index/inmem/scalar.rs	Updates in-mem scalar benchmark to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/index/inmem/product.rs	Updates in-mem product benchmark to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/index/build.rs	Updates index build benchmark to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/index/bftree/spherical.rs	Updates bftree spherical benchmark to `matrix::Matrix`.
diskann-benchmark/src/index/bftree/spherical_streaming.rs	Updates bftree spherical streaming benchmark to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/index/bftree/full_precision_streaming.rs	Updates bftree full-precision streaming benchmark to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/index/benchmarks.rs	Updates benchmark harness to `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/flat/search.rs	Updates flat search benchmark to `matrix::Matrix`.
diskann-benchmark/src/exhaustive/spherical.rs	Updates exhaustive spherical store to `matrix::Matrix` and input to `matrix::MatrixView`.
diskann-benchmark/src/exhaustive/product.rs	Updates exhaustive product store to `matrix::Matrix` and input to `matrix::MatrixView`.
diskann-benchmark/src/exhaustive/minmax.rs	Updates exhaustive minmax store to `matrix::Matrix` and input to `matrix::MatrixView`.
diskann-benchmark/src/exhaustive/algos.rs	Updates exhaustive algorithms to use `matrix::{Matrix, MatrixView}`.
diskann-benchmark/src/disk_index/search.rs	Updates disk-index benchmark search to `matrix::Matrix`.
diskann-benchmark-simd/src/lib.rs	Updates SIMD benchmark library to use `matrix::{Matrix, MatrixView}` and `matrix::Init`.
diskann-benchmark-core/src/streaming/executors/bigann/withdata.rs	Updates BigANN streaming executor to `matrix::{Matrix, MatrixView}`.
diskann-benchmark-core/src/search/ids.rs	Updates ID utilities to `matrix::{self, Matrix}` and `matrix::Init`.
diskann-benchmark-core/src/search/graph/range.rs	Updates range search to `matrix::Matrix`.
diskann-benchmark-core/src/search/graph/multihop.rs	Updates multihop search to `matrix::Matrix`.
diskann-benchmark-core/src/search/graph/knn.rs	Updates KNN search to `matrix::Matrix`.
diskann-benchmark-core/src/search/graph/inline.rs	Updates inline search to `matrix::Matrix`.
diskann-benchmark-core/src/search/api.rs	Updates search API internals to `matrix::{self, Matrix}` and `matrix::Init`.
diskann-benchmark-core/src/recall.rs	Updates recall computation/tests to `matrix::{Matrix, MatrixView}` and `matrix::Init`.
diskann-benchmark-core/src/build/graph/single.rs	Updates single build path to `matrix::Matrix`.
diskann-benchmark-core/src/build/graph/multi.rs	Updates multi build path to `matrix::Matrix`.

Comments suppressed due to low confidence (7)

diskann-utils/src/matrix.rs:753

Mat::from_fn(...) is still used in the repo (e.g. diskann-benchmark/src/multi_vector/driver.rs) but diskann_utils::matrix::Mat<RowMajor<T>> no longer defines this constructor, so the workspace won't compile. Reintroduce a dense-only from_fn that takes an already-validated RowMajor<T> and fills elements from a closure (similar to the previous API).
diskann-utils/src/matrix.rs:1226
MatrixView::row computes i * ncols without first asserting i < nrows. In release builds usize multiplication can wrap, so a very large i can return an in-bounds slice from the wrong row instead of panicking as documented. Add an explicit bounds check before doing the offset math.
diskann-utils/src/matrix.rs:1231
MatrixView::row_iter uses chunks_exact(self.ncols()), which panics when ncols == 0. Zero-column matrices are explicitly allowed by RowMajor::new, so iterating rows should remain well-defined (yielding nrows empty slices). Using the existing rows() iterator avoids the chunks_exact(0) panic.
diskann-utils/src/matrix.rs:1243
MatrixView::window_iter will panic or misbehave when ncols == 0 (division by zero in d.len() / ncols, and chunks(0) panics). It also risks ncols * batchsize overflow in release builds. Iterating by row-index windows and using subview avoids these edge cases and preserves the intended semantics.
diskann-utils/src/matrix.rs:1273
MatrixView::par_window_iter has the same ncols == 0 hazards as window_iter (par_chunks(0) panics, and d.len() / ncols divides by zero), plus potential ncols * batchsize overflow. Consider switching this to an index-window parallel iterator (using step_by) and subview, mirroring the sequential implementation.
diskann-utils/src/matrix.rs:1609
The PartialEq impls only compare ncols and the flattened slice. For ncols == 0, all matrices/views have an empty backing slice regardless of nrows, so shapes like 5x0 and 10x0 will compare equal. Include nrows (or compare repr) to make equality shape-correct for zero-column matrices.
diskann-utils/src/matrix.rs:36
The rayon::iter::ParallelIterator import is currently unused in this module (all public APIs reference rayon::iter::IndexedParallelIterator by fully-qualified path, and method bodies import the needed slice traits locally). With -D warnings in CI, this unused import will fail builds when the rayon feature is enabled. Either remove it, or import it as _ if you only need it for trait resolution.

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codecov-commenter · 2026-07-21T22:54:23Z

Codecov Report

❌ Patch coverage is 96.21212% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.30%. Comparing base (028d8d5) to head (051ce98).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...-quantization/src/multi_vector/distance/factory.rs	75.00%	4 Missing ⚠️
...-quantization/src/multi_vector/block_transposed.rs	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1269      +/-   ##
==========================================
+ Coverage   90.05%   90.30%   +0.24%     
==========================================
  Files         500      497       -3     
  Lines       95975    94773    -1202     
==========================================
- Hits        86435    85588     -847     
+ Misses       9540     9185     -355

Flag	Coverage Δ
miri	`90.30% <96.21%> (+0.24%)`	⬆️
unittests	`89.97% <96.21%> (+0.24%)`	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
diskann-disk/src/search/pq/quantizer_preprocess.rs	`97.22% <100.00%> (ø)`
diskann-disk/src/storage/quant/generator.rs	`97.20% <100.00%> (ø)`
diskann-disk/src/storage/quant/pq/pq_generation.rs	`92.66% <100.00%> (ø)`
diskann-garnet/src/provider.rs	`80.35% <100.00%> (ø)`
.../src/model/graph/provider/determinant_diversity.rs	`97.05% <100.00%> (ø)`
...ann-providers/src/model/pq/fixed_chunk_pq_table.rs	`91.95% <100.00%> (ø)`
diskann-providers/src/model/pq/pq_construction.rs	`94.52% <100.00%> (ø)`
diskann-providers/src/model/pq/views.rs	`89.09% <100.00%> (ø)`
diskann-providers/src/storage/pq_storage.rs	`84.76% <100.00%> (ø)`
...skann-quantization/src/algorithms/kmeans/lloyds.rs	`98.14% <100.00%> (ø)`
... and 21 more

... and 6 files with indirect coverage changes

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hildebrandmw · 2026-07-22T01:59:40Z

+/// [`MatrixView`] so a [`BasicTableBase`] reads its dimensions and rows from one place.
+pub trait PivotTable {
+    fn view(&self) -> MatrixView<'_, f32>;
+}


I'm not sure how I feel about this. I'll need to think about it more ...

Do you have any better suggestion?

arkrishn94

Thanks for taking this on Suryansh. I left some minor comments re errors.

Apart from that, I notice there is quite a large increase in the number of constructors and accessors for Mat and its friends. I recognize that most of this is needed because of the switch from the old view type but can you -

Do an audit and confirm that each of these accessors/constructors in matrix.rs is needed and can't be consolidated.
That these are also tested correctly? I don't notice any extra testing there.

Copilot

Pull request overview

Copilot reviewed 76 out of 78 changed files in this pull request and generated 1 comment.

 //! ).unwrap();
 //!
-//! // Create owned matrices for quantized output using Mat::new
+//! // Create owned matrices for quantized output using Mat::from_repr


arkrishn94 · 2026-07-23T18:58:56Z

+    }
+
+    /// Return a mutable base pointer for the [`Mat`].
+    pub fn as_raw_mut_ptr(&mut self) -> *mut u8 {


Should this be public?

suri-kumkaran added 4 commits July 21, 2026 16:30

Remove T:Copy bound from diskann-quantization\multi_vector\Mat<Standa…

671e4bf

…rd<T>> type

Main merge

c6abb1e

Improve module structure

4406457

Remove overly re-exports

0d769cf

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Comment thread diskann-utils/src/views.rs

Comment thread diskann-utils/src/views.rs

Comment thread diskann-utils/src/matrix.rs Outdated

Address review comments

051ce98

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Comment thread diskann-quantization/src/minmax/multi/mod.rs

//! ).unwrap();

//!

//! // Create owned matrices for quantized output using Mat::new

//! // Create owned matrices for quantized output using Mat::from_repr

arkrishn94 reviewed Jul 23, 2026

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codecov-commenter commented Jul 21, 2026 •

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