pybind / pybind/pybind11

Pass-by-reference is not supported for Sparse types

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#1,022 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C++
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Description

As described in the passy-by-reference doc, I wonder:

  1. is there any particular reason not to support ref for sparse types?
  2. since not supported, if I have sparse matrix constructed in python via scipy.sparse.csr_matrix, then have to pass it by value to c++, would this bring much overhead if I have to do a mini-batch processing on the data?

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Research direction

Start with the linked pass-by-reference documentation for Eigen bindings and trace how scipy.sparse.csr_matrix values are converted for C++. The issue does not name source files or tests; completion would require a decided approach for sparse reference support or a documented explanation of the current overhead and limitations.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, python
Domain
api, backend
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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