Implement `tensor.isin` #2098

ndgrigorian · 2025-06-06T08:54:47Z

This PR proposes an implementation for isin, a function likely coming to a future array API specification, which leverages a similar kernel to the implementation of searchsorted

This implementation uses the searchsorted kernel to check if the value has a position in the array. If that position is the number of elements in the array, it is not a member. Otherwise, if arr[pos] == val for some array arr being searched for value val, then val is a member.

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github-actions · 2025-06-06T09:31:48Z

Deleted rendered PR docs from intelpython.github.com/dpctl, latest should be updated shortly. 🤞

github-actions · 2025-06-06T09:40:22Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_8 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

coveralls · 2025-06-06T09:40:36Z

coverage: 85.262% (+0.05%) from 85.208%
when pulling 68bc84e on feature/searchsorted-based-isin
into 3091e5b on master.

github-actions · 2025-06-06T23:26:19Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_10 ran successfully.
Passed: 1114
Failed: 7
Skipped: 119

dpctl/tensor/_set_functions.py

ndgrigorian · 2025-06-11T22:14:55Z

@antonwolfy
implementation is updated and now permits Python scalars in second argument

tests still need to be added, but isin itself is ready for review

github-actions · 2025-06-11T22:55:11Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_17 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

dpctl/tensor/CMakeLists.txt

dpctl/tensor/_set_functions.py

dpctl/tensor/libtensor/source/sorting/isin.cpp

dpctl/tensor/libtensor/include/kernels/sorting/isin.hpp

dpctl/tensor/_set_functions.py

github-actions · 2025-06-16T08:56:49Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_18 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-16T21:51:25Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_22 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-16T22:17:02Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_23 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-17T07:08:12Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_24 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-17T08:30:21Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_23 ran successfully.
Passed: 1116
Failed: 5
Skipped: 119

dpctl/tensor/_set_functions.py

dpctl/tests/test_tensor_isin.py

github-actions · 2025-06-17T21:17:04Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_24 ran successfully.
Passed: 1112
Failed: 9
Skipped: 119

github-actions · 2025-06-17T22:16:52Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_26 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-17T23:04:20Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_27 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-18T06:36:39Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_30 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-18T20:50:10Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_35 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-06-23T07:29:09Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_58 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

allows these comparisons to be shared outside of sorting more conveniently

github-actions · 2025-09-17T17:57:20Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_153 ran successfully.
Passed: 1116
Failed: 5
Skipped: 119

dpctl/tensor/_set_functions.py

github-actions · 2025-09-17T20:02:20Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_157 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

antonwolfy

Thank you @ndgrigorian, no more comments from me

github-actions · 2025-09-17T20:25:54Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_158 ran successfully.
Passed: 1114
Failed: 7
Skipped: 119

github-actions · 2025-09-17T20:54:43Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_158 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

github-actions · 2025-09-17T21:24:11Z

Array API standard conformance tests for dpctl=0.21.0dev0=py310h93fe807_161 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

ndgrigorian force-pushed the feature/searchsorted-based-isin branch from 1805102 to 5355fb8 Compare June 6, 2025 22:41

antonwolfy reviewed Jun 10, 2025

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ndgrigorian marked this pull request as ready for review June 11, 2025 22:15

ndgrigorian requested review from vlad-perevezentsev and vtavana as code owners June 11, 2025 22:15

ndgrigorian requested a review from antonwolfy June 11, 2025 22:20

antonwolfy reviewed Jun 11, 2025

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ndgrigorian requested a review from antonwolfy June 17, 2025 06:24

ndgrigorian force-pushed the feature/searchsorted-based-isin branch from b3822f3 to f7e0967 Compare June 17, 2025 07:40

antonwolfy reviewed Jun 17, 2025

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ndgrigorian force-pushed the feature/searchsorted-based-isin branch from 8f19cb5 to 3cf7445 Compare June 17, 2025 21:32

ndgrigorian force-pushed the feature/searchsorted-based-isin branch from 3cf7445 to 7c6a4be Compare June 17, 2025 22:20

ndgrigorian force-pushed the feature/searchsorted-based-isin branch from 16c63e4 to 23c61a8 Compare June 18, 2025 20:06

ndgrigorian added 9 commits September 17, 2025 10:08

Add test for combinations of dtypes as inputs to isin

5b877c8

Add compute follows data test for isin

538176c

Add isin to rendered docs

0cd24f5

Test that isin output is C-contiguous when input is strided

0070331

improve formatting of isin docstring

2ebb3a1

move rich_comparisons.hpp into utils

26f68d2

allows these comparisons to be shared outside of sorting more conveniently

factor out compare template param in isin

365c3b4

add missing includes to rich_comparisons

44661ba

drop unused includes in isin kernel implementation

62a9fa4

ndgrigorian force-pushed the feature/searchsorted-based-isin branch from a8d9474 to 62a9fa4 Compare September 17, 2025 17:16

ndgrigorian requested a review from antonwolfy September 17, 2025 17:21

ndgrigorian added 2 commits September 17, 2025 12:18

validate that invert kwarg is boolean

ff68bca

add a test for input validation of invert

e28e1aa

antonwolfy reviewed Sep 17, 2025

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ndgrigorian force-pushed the feature/searchsorted-based-isin branch from b61f09e to 1ac19ae Compare September 17, 2025 20:14

antonwolfy previously approved these changes Sep 17, 2025

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make invert bool type check stricter

68bc84e

ndgrigorian dismissed antonwolfy’s stale review via 68bc84e September 17, 2025 20:44

ndgrigorian force-pushed the feature/searchsorted-based-isin branch from 1ac19ae to 68bc84e Compare September 17, 2025 20:44

ndgrigorian requested a review from antonwolfy September 17, 2025 20:44

antonwolfy approved these changes Sep 17, 2025

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ndgrigorian enabled auto-merge September 17, 2025 23:15

ndgrigorian disabled auto-merge September 17, 2025 23:15

ndgrigorian merged commit 878cc19 into master Sep 17, 2025
85 of 99 checks passed

ndgrigorian deleted the feature/searchsorted-based-isin branch September 17, 2025 23:17

Implement tensor.isin #2098

Implement tensor.isin #2098

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Implement `tensor.isin` #2098

Implement `tensor.isin` #2098

ndgrigorian commented Jun 6, 2025 •

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