Fixes for some nvcc versions

[dtaller]

Sometimes nvcc won't generate constructors/assignment operators when = default is used. The workaround is to explicitly define them.

[liu15]

Was this the only change needed for the offsite builds? I thought that =default was supposed to create both host and device default versions. I'm surprised that these are the only ones...

[dtaller]

Was this the only change needed for the offsite builds? I thought that =default was supposed to create both host and device default versions. I'm surprised that these are the only ones...

@liu15 Yes, this only happened on offsite builds. I am not totally sure why, it may even be a compiler problem. But the error occurred during capture of care objects in raja loops.

[adayton1]

LGTM

[adayton1]

Was this the only change needed for the offsite builds? I thought that =default was supposed to create both host and device default versions. I'm surprised that these are the only ones...

@liu15 Yes, this only happened on offsite builds. I am not totally sure why, it may even be a compiler problem. But the error occurred during capture of care objects in raja loops.

= default is supposed to create both host and device versions of the constructor. But nvcc sometimes fails at generating the device version. The RAJA team has experienced this as well.