1918 sparse matrix not updated in for loop in opencl #3602
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…s and/or row/cols arrays are not accounted for when converting a sparse array to a dense one. This can happen when a sparse matrix is constructed using values and/or row/cols arrays that have been indexed using the seq method.
edwinsolisf
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Dec 30, 2024
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Tested changes on windows with OpenCL
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Fix for issue in the opencl backend where array offsets for the values and/or row/cols arrays are not accounted for when converting a sparse array to a dense one.
Description
A sparse csr matrix may be constructed using arrays for the values and the row and column indices. When these arrays are indexed using the seq method, the offsets into them are stored. These offsets were not being accounted for in the sparse to dense conversion function which can result in incorrect values in the resulting dense matrix. This PR fixes that.
Fixes: #1918
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