Mathematica 12.2 installs extremely old CUDA Toolkit 4.2

[bertramaerts (Bert Aerts)]

I installed Mathematica 12.2.0 and was trying CUDA.
With version 12.1.1 CUDAResources-Lin64-12.1.0 was installed.
Now with version 12.2.0 CUDAResources-Lin64-9.0.0.0 is installed.
This is according to (linux laptop) ~/.Mathematica/Paclets/Repository/CUDAResources-Lin64-9.0.0.0/PacletInfo.m

Paclet[
Name -> "CUDAResources",
Version -> "9.0.0.0",
MathematicaVersion -> "9.0.0+",
Description -> "{ToolkitVersion -> 4.2, MinimumDriver -> 270.0}",
SystemID -> 
{"Linux-x86-64"}
,
PlatformQualifier -> "Lin64",
Extensions -> 
{
{"Resource", Resources -> 
{"CUDAToolkit", "ExampleData"}
}
}
]

While nVIDIA just launched CUDA toolkit 11.2, this toolkit 4.2 is extremely old. When can I expect an update?

[ahmed (Ahmed Elbanna)]

Hi Bert

Please check the replies in this thread, it may help you.

CUDA not working on Mathematica 12.2

Hello all CUDA is not working on 12.2. Look at this: What I am supposed to do? I also tried by downloading the CUDA packlets: change nothing. I have an NVIDIA RTX 3090 and the drivers are ok. Thank you foe helping me. Regards to all, Jean-Michel Sans titre-1.nb (4.47 KB)

[bertramaerts (Bert Aerts)]

Thank you.
So from version 12.2.0 onwards, Wolfram does not provide a CUDA paclet anymore and is using the CUDA toolkit from nVIDIA native installation. Good news, no double installation anymore…
But please provide a link to the Mathematica documentation that describes the new procedure.

As can be seen in the image, CUDAQ[] starts downloading CUDA paclet 9.0.0.0. WHY ???

[ahmed (Ahmed Elbanna)]

The team is aware of it and working on it. Thank you for reporting.

[gianni2k (Gianni Tallarita)]

Hello, I am having a very similar issue. I just purchased a new RTX 3090 GPU and I’ve installed the CUDAToolkit version 11.2 directly from NVIDIA on my machine. However this still won’t allow me to work with CUDA in Mathematica v12.2, the calculations seemingly get stuck and I have to abort them with no error message. The CUDAInformation[] seems to fail too. Please help.

[bertramaerts (Bert Aerts)]

Hi,
Please find attached a notebook that works on my Ubuntu linux laptop with native nVIDIA CUDA toolkit 11.1.1. It is not yet the latest as the nVIDIA driver 460.27.04 needed for CUDA 11.2 is not yet available for Ubuntu. Note that this notebook will download and install CUDA paclet 9.0.0.0 from Wolfram. I tried many things to avoid this download, but without this paclet being installed cuda does not work. In SystemInformation[] you can find that Mathematica is using the 11.1.1 toolkit as shown below:

Kind regards, Bert

cuda12.2.0.nb (342 KB)

[uc6969 (Jean Jean)]

Hello,
Same problem, downgraded to 9.0.0.0 on Linux, not working on Windows…
J.