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CUBLAS: nrm2 support for StridedCuArray with length requiring Int64 #2268

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tipfom opened this issue Feb 15, 2024 · 1 comment · Fixed by #2270
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CUBLAS: nrm2 support for StridedCuArray with length requiring Int64 #2268

tipfom opened this issue Feb 15, 2024 · 1 comment · Fixed by #2270
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cuda libraries Stuff about CUDA library wrappers. enhancement New feature or request

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@tipfom
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tipfom commented Feb 15, 2024

Currently, the CUDA.CUBLAS.nrm2 wrapper function fails, when the length of the array is greater than supported by Int32.
This also causes the LinearAlgebra.norm implementation to fail causing an error with the following signature: "InexactError: trunc(Int32, 4294967296)".

For me, appending the nrm2 wrapper definition to include the 64 bit variants of the nrm2 functions, namely cublasDnrm2_v2_64, cublasSnrm2_v2_64, cublasDznrm2_v2_64, cublasScnrm2_v2_64, presents the best solution.
@tipfom tipfom added the enhancement New feature or request label Feb 15, 2024
@tipfom tipfom mentioned this issue Feb 15, 2024
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@tipfom
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tipfom commented Feb 15, 2024

The PR #2269 provides a suggested fix :)

@amontoison amontoison mentioned this issue Feb 16, 2024
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@maleadt maleadt added the cuda libraries Stuff about CUDA library wrappers. label Feb 28, 2024
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[CUBLAS] Use the ILP64 API with CUDA 12 amontoison/CUDA.jl
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