I see kokkos and hyper have a sm_70 flag, but I don't see one for PETSc. It looks like you have to specify this to get modern atomics to work in Cuda. I get:
/ccs/home/adams/petsc/include/petscaijdevice.h(99): error: no instance of overloaded function "atomicAdd" matches the argument list argument types are: (double *, double) I tried using a Kokkos configuration, thinking I could get these sm_70 flags, but that did not work. Any ideas? Mark