Build instructions for Linux metion to use gcc<6.1 together with CUDA

[marbre]

The build instructions for Linux metion that a gcc <6.1 hat to be used together with CUDA:

NOTE: If the default gcc on your machine is gcc >= 6.1 and you want to use CUDA, you will have to run cmake by using an older gcc.

I assume this information is outdated since CUDA supports newer gcc versions?

[9prady9]

No, this is still valid. Even CUDA 9.2 doesn't support the latest gcc versions. The latest it is known to work with is 6.1.

https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#system-requirements

[marbre]

This is simply wrong. Please see the system requirements yourself, it mentions Ubuntu 17.10 with gcc 7.2.0 as well as Fedora 27 with gcc 7.3.1.
With CUDA 9.2, gcc 7.x is supported as stated in the release notes. Therefore, I was curious if there is something special with ArrayFire.

[9prady9]

My bad, I missed the entry for Ubuntu 17.10. I use Arch and Ubuntu 16.04 for development. The former has gcc 8.* and the later has gcc 5.* . I use gcc 6 on my arch for CUDA backend. Hence, never really tried version 7 so far. Have you tried using gcc 7 ? If you dint have access to it, I can try it out later and update the wiki accordingly. Thanks for reporting it.

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On Thu 19 Jul, 2018, 7:18 PM Marius Brehler, ***@***.***> wrote: This is simply wrong. Please see the system requirements yourself, it mentions Ubuntu 17.10 with gcc 7.2.0 as well as Fedora 27 with gcc 7.3.1. — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#2247 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ADHnOrhVNNaSCWv01HUVV2aviJ4tzRQbks5uII4cgaJpZM4VWEJn> .

[9prady9]

I have updated the build instructions to latest gcc that works with CUDA backend as 7.3.1

[marbre]

I normally use a gcc 6.4.0, but just tested with a 7.3.0 and at least ArrayFire compiles (no further testing). Thanks for clarification :)

[9prady9]

Yes, I have updated instructions after building ArrayFire with 7.3.1. Thanks for the update!