[Paraview] CUDA dependency issue when building ParaView 4.1.0-RC2 on Mac

[Burlen Loring]

Hey Patrick and Ben, Thanks for the feedback.

In this case I think it's confusing to be dumped into a separate ccmake 
screen. I'd say it's really an issue in the FindCUDA.cmake module, which 
does

  message("CUDA_TOOLKIT_ROOT_DIR not found or specified")

according to the documentation a naked message command is supposed to 
mean "Important information". In this case it's not. I think this 
message should probably be downgraded to STATUS type. just my 2 cents.

At any rate, we could avoid the problem in PV if in the plugin we used

find_package(CUDA QUIET)

but initially all the cuda stuff, including find_package, was controlled 
by a cache variable so that this confusing behavior could be avoided and 
I wouldn't have to use the QUIET option because when you're actually 
trying to configure for cuda the output is helpful if things go wrong.

Burlen

On 01/02/2014 02:01 PM, Benjamin Spencer wrote:
> You're right.  I didn't realize this was just an informational 
> message, and not an error that has to be resolved.  After I hit that 
> message the first time, then configure a second time and hit that 
> message again, I can successfully generate the makefile.
>
> Thanks,
> Ben
>
> On Thu, Jan 2, 2014 at 2:37 PM, Patrick O'Leary 
> <patrick.oleary at kitware.com <mailto:patrick.oleary at kitware.com>> wrote:
>
>     Dear Ben and Burlen,
>
>     On my Mac Book Pro with NVidia card, I received the same
>     informational message but it builds if I exit the informational
>     screen with 'e' and hit 'g'.
>
>     Best regards,
>     Patrick
>
>
>     On Thu, Jan 2, 2014 at 2:33 PM, Burlen Loring <bloring at lbl.gov
>     <mailto:bloring at lbl.gov>> wrote:
>
>         Hi Benjamin,
>
>         This is of interest to me as I haven't been involved in the
>         recent plugin changes and need to look through them more closely.
>
>         You reported an informational message that is not an error.
>         Could you report the actual error?
>
>         btw, I also see the message on my ATI based system, but it
>         doesn't prevent me from building. For example in ccmake I can
>         press "e" to exit the informational screen where the message
>         is displayed and then hit "g" to generate the make files and
>         go on to compile without issue.
>
>         Burlen
>
>
>         On 01/02/2014 12:41 PM, Benjamin Spencer wrote:
>>         I'm trying to build ParaView 4.1.0-RC2 from source on Mac OS
>>         (10.8.5).  This machine does not have CUDA installed (and has
>>         no nvidia graphics hardware).
>>
>>         When running ccmake, I get this error:
>>
>>         CUDA_TOOLKIT_ROOT_DIR not found or specified
>>
>>         This seems to be coming from the call:
>>         find_package(CUDA)
>>         in
>>         Plugins/SciberQuestToolKit/SciberQuest/CMakeLists.txt
>>
>>         If I comment that line out, I can successfully compile.  I'm
>>         no cmake guru, but it seems like if I don't have CUDA
>>         installed, find_package(CUDA) should just set CUDA_FOUND to
>>         OFF and not require any paths to CUDA to be set.  Maybe this
>>         is an issue with the CUDA module in CMake rather than
>>         ParaView.  I'm using the latest CMake (2.8.12.1).
>>
>>         Thanks,
>>         Ben
>>
>>         Benjamin Spencer
>>         Fuels Modeling and Simulation
>>         Idaho National Laboratory
>>
>>
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