After upgrading to CUDA 12.9, code using nppGetStreamContext() does not compile any more. Indeed, nppGetStreamContext()(and some others) disappeared from nppcore.h. I can’t find any deprecation mention. Also, it is still part of nppc.lib, so it is possible to manually declare it and compile/link …

Conclusion of ticket 5262035 Non-CTX APIs are restored now on CUDA 12.9 update1 , please kindly check the latest release . What happened here is We are sorry to mis-remove the non-CTX APIs in CUDA 12.9.0 which is actually planned to a next major version . We immediately restored the non-CTX APIs…

Same issue for me, OpenCV won’t compile anymore. Pretty weird that Nvidia dropped that function without any deprecation warning beforehand.

Having the same issue, it seems in cuda 12.9, almost all NPP functions are removed without warning. 12.9 doc Core NPP Functions — npp 12.9 documentation 12.8 doc Core NPP Functions — npp 12.8 documentation

Having the same issue and am unable to revert for my OpenCV build purposes. I am using some old prebuilt whl from online but it is incomplete. Also, I can’t see the bug. “To access these materials, you must be a member of one the NVIDIA programs listed below. Click the link to learn about each prog…

@patrickjpoconnell there is a PR for OpenCV to fix the builds Build failure with CUDA 12.9: nppGetStreamContext() removed from headers opened 04:06PM - 06 May 25 UTC (UTC) closed 09:20AM - 16 May 25 UTC (UTC) …

[image] Chacha21: nppGetStreamContext I don’t get it. You are talking about non-CTX APIs. This is not the topic of the ticket. Non-CTX APIs have been planed to be removed for a long time, that’s true. But nppGetStreamContext() is NOT a non-CTX API. It is precisely a CTX API, to migrate awa…

nppGetStreamContext disappeared from CUDA 12.9?

Accelerated Computing GPU-Accelerated Libraries

Robert_Crovella May 5, 2025, 4:01pm 3

You may wish to file a bug

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nppGetStreamContext disappeared from CUDA 12.9?

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