gpu support single sparse matrix?
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Tung-Duong
le 15 Mar 2017
Réponse apportée : Mike Croucher
le 13 Août 2025
I can't create a single-precision sparse matrix on the GPU. Does version 2017a allow that yet?
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Joss Knight
le 15 Mar 2017
You can't create a single-precision sparse matrix on the CPU either, so the answer is no, this is not supported. Do you have an application in mind?
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Thomas Richner
le 3 Juil 2019
2 years later and I still miss seriously miss single and half precision sparse every day. Sad. It isn't only about memory savings--the single precision compute performance of a nvidia 1080 ti is 10x that of double precision.
I'm hoping that with deep nerual nets gaining traction in Matlab, they might find reason to implement single and half precision sparse arrays. Pytorch has these.
Until then I'm left either converting back and forth between double and single (which is slow) or running entirely with double with smaller simulations.
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Mike Croucher
le 13 Août 2025
Single Sparse is now supported, starting with R2025a on both the CPU and GPU. A detailed write up, including performance benchmarks, can be found at New in MATLAB: Single precision sparse matrices » The MATLAB Blog - MATLAB & Simulink
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