Add test-gpu task

[hoxbro]

This should make it easier to test CuDF (locally). I'm using it as a marker as I only want to be able to run the GPU tests if this task is called.

I have used the versions from https://github.com/rapidsai/cudf?tab=readme-ov-file#conda

[codecov]

Codecov Report

Attention: Patch coverage is 34.00000% with 66 lines in your changes are missing coverage. Please review.

Project coverage is 88.18%. Comparing base (bc684e3) to head (49ddb0b).
Report is 3 commits behind head on main.

Files	Patch %	Lines
holoviews/element/selection.py	9.09%	20 Missing ⚠️
holoviews/tests/operation/test_operation.py	35.71%	18 Missing ⚠️
holoviews/tests/element/test_selection.py	26.66%	11 Missing ⚠️
holoviews/tests/core/data/test_cudfinterface.py	46.66%	8 Missing ⚠️
holoviews/core/data/cudf.py	0.00%	5 Missing ⚠️
holoviews/tests/operation/test_datashader.py	20.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6217      +/-   ##
==========================================
- Coverage   88.21%   88.18%   -0.04%     
==========================================
  Files         321      321              
  Lines       67289    67360      +71     
==========================================
+ Hits        59361    59402      +41     
- Misses       7928     7958      +30     

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[hoxbro]

Also added support for _select_mask_neighbor as the test was easy to run.

[hoxbro]

@AjayThorve, can you help me get cuspatial up and running if you have time?

I get this error TypeError: point_in_polygon() takes 2 positional arguments but 6 were given when running the test. I assume this has worked at some point.

[AjayThorve]

Hey @hoxbro. yes there have been some changes in the point_in_polygon api, it only takes two parameters now, both cuspatial GeoSeries (points, polygons). Here is something that might work:

import cudf
import cupy as cp
from shapely.geometry import Polygon
import geopandas

if isinstance(xvals, cudf.Series):
    xvals = xvals.values.astype('float')
    yvals = yvals.values.astype('float')
    try:
        import cuspatial
        df = cudf.DataFrame({'x':xvals, 'y':yvals})
        points = cuspatial.GeoSeries.from_points_xy(
           df.interleave_columns().astype('float')
        )
        polygons = cuspatial.GeoSeries(
           geopandas.GeoSeries(Polygon(geometry)), index=["selection"]
        )

        result = cuspatial.point_in_polygon(points.polygon)

        return result.selection

ref:

1. https://docs.rapids.ai/api/cuspatial/nightly/api_docs/geopandas_compatibility/#cuspatial.GeoSeries

2. https://docs.rapids.ai/api/cuspatial/nightly/user_guide/cuspatial_api_examples/#cuspatial.point_in_polygon

[hoxbro]

Thank you so much! Worked like a charm.

Do you have a version of when the changes were made?