Interval Arithmetic Operations with Outward Rounding in CUDA C++ and CUDA Python

Accelerated Computing CUDA CUDA Programming and Performance
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Hi! Our team is trying to implement basic interval arithmetic operations (e.g., addition, subtraction, multiplication, and subdivision) with outward rounding in both CUDA C++ and CUDA Python (especially Numba). I heard that there was a “cuda_interval_lib.h” file included in the previous versions of cuda toolkit, but I cannot find that file anymore. Could you kindly suggest where I can find the “cuda_interval_lib.h” file or is there any other tools provided by NVIDIA for interval arithmetic? Thank you!

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This appears to have been part of the CUDA sample programs distributed with (at least) CUDA 6. From a packing list I found at NVIDIA’s website the following files were installed:

/usr/local/cuda-6.0/samples/6_Advanced/interval/cpu_interval.h
/usr/local/cuda-6.0/samples/6_Advanced/interval/cuda_interval.h
/usr/local/cuda-6.0/samples/6_Advanced/interval/cuda_interval_lib.h
/usr/local/cuda-6.0/samples/6_Advanced/interval/cuda_interval_rounded_arith.h

The CUDA Toolkit archive for all CUDA versions going back to 1.0 is here:

You might also be interested in this publication:

Sylvain Collange, Marc Daumas, and David Defour, “Interval Arithmetic in CUDA.” In Wen-mei W. Hwu (ed.), GPU Computing Gems Jade Edition, Morgan Kaufmann 2012, pp. 99-107

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Thank you for your information! The paper is very helpful. However, I cannot download CUDA 6 through the NVIDIA website (CUDA Toolkit 6.0 | NVIDIA Developer). It seems that the website blocks all the downloads (I tried to download the exe file using two computers).

If a nice NVIDIA staff see this post, could you kindly fix the website problem or suggest other ways to download these files in CUDA 6? Thanks.

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Some time ago, NVIDIA migrated the CUDA sample codes to a GitHub repository, and I do find the requested file there:

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The attempt to download CUDA 6 will be more challenging because it is hosted behind an http: link not https: so modern browsers will refuse to download it.

I think its not very likely that NVIDIA will “fix” this. I suggest finding a way to download from an http: link using a browser like chrome (it is possible - it requires a few extra clicks) or else use the items from the github link njuffa indicated.

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I just downloaded these files through the link you provided. Your help is greatly appreciated!

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