[Kokkos] Undefined symbol breaks linking

[maxfirmbach]

Description: What's going wrong?

Current Trilinos develop in combination with our ArborX version produces following Kokkos error:

ld.lldld.lld: : error: undefined symbol: Kokkos::Impl::hostspace_parallel_deepcopy_async(Kokkos::Serial const&, void*, void const*, long)

Expectations

• ?

Possible Solution

It might be sufficient to update our ArborX version to get around the issue.

Steps to Reproduce

1. Build 4C with the most recent Trilinos develop branch.

Related Issues and Merge Requests

• Related to [Trilinos] Update to newer version #288

Interested Parties

@mayrmt @isteinbrecher

[mayrmt]

ArborX has undergone some backwards incompatible changes in recent months. An update might be a good idea.

[maxfirmbach]

@mayrmt I would wait till the next official release. Many of the new stuff is currently still in the Experimental namespace, which I wouldn't like to use.

[maxfirmbach]

I'm pretty sure ArborX is most likely not the direct problem ...

[isteinbrecher]

We have used stuff from the Experimental namespace in ArborX in the past (I think the kDOPs only recently were moved out of there). Since the functionality we use in 4C is well tested, I don’t mind using implementations from that namespace.