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I run the following:

 ClearAll; Needs["CUDALink`"] CUDAQ[]

The last returning True.

I then run SystemInformation[]. Before I get the expected panel with the various tabs ("Kernel", "Front End", "Links", "Parallel", "Devices", "Network", "Machine"), I get the following error:

Join::incpt: Incompatible elements in Join[<|intt->RowBox[{[Integral],RowBox[{[SelectionPlaceholder],RowBox[{[DifferentialD],[Placeholder]}]}]}],dintt->RowBox[{SubsuperscriptBox[[Integral],[SelectionPlaceholder],[Placeholder]],RowBox[{[Placeholder],RowBox[{[DifferentialD],[Placeholder]}]}]}],rintt->RowBox[{UnderscriptBox[[Integral],RowBox[{[SelectionPlaceholder],[Element],[Placeholder]}]],[Placeholder]}],sumt->RowBox[{UnderoverscriptBox[[Sum],RowBox[{[SelectionPlaceholder],=,[Placeholder]}],[Placeholder]],[Placeholder]}],prodt->RowBox[{UnderoverscriptBox[[Product],RowBox[{[SelectionPlaceholder],=,[Placeholder]}],[Placeholder]],[Placeholder]}],<<38>>,cI->TemplateBox[{},CombinatorI],cK->TemplateBox[{},CombinatorK],cS->TemplateBox[{},CombinatorS],cW->TemplateBox[{},CombinatorW],cY->TemplateBox[{},CombinatorY]|>,{<<1>>},{<<1>>}] cannot be joined.

Anyone have any idea why this occurs and how to make it disappear?

I'm running Ver. 12.3 on a Windows 11 64-bit platform using the CUDADriverVersion 496.49 with A GeForce GTX 1080 with Max-Q Design. I get the sense that CUDALink on my machine is not quite set up correctly. I can execute some CUDA commands without error but not all. I'm trying to reach a point of stability with various examples available in WR documents and videos, so I can get to the point of actually learning how to create CUDA programs using CUDALink.

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  • $\begingroup$ Have you installed the CUDA Toolkit as detailed in the CUDALink Setup tutorial? Also, are you running the latest driver for your NVIDIA card? Also, check the compute capability of your card. $\endgroup$ Commented Mar 29, 2023 at 20:49

1 Answer 1

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Apparently, this error can be made to disappear by first invoking the following command.

Needs["CUDADriverLink"]

At least on my machine.

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  • $\begingroup$ Your code above (without `` ` ) returns an error ("Invalid context specified at position 1 in Needs["CUDADriverLink"]"). If I use Needs["CUDADriverLink"]``, I get a "Cannot open ``CUDADriverLink ``". Which one did you mean? $\endgroup$ Commented Nov 4, 2021 at 16:33
  • $\begingroup$ Yes, I meant to type Needs["CUDADriverLink`"] Without it (and ignoring my typo above) SystemInformation[] gives me a Join error. Thanks for catching the typo. $\endgroup$ Commented Nov 9, 2021 at 4:39

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