[CUDA] peer-to-peer offsets were done wrong
[CUDA] peer-to-peer offsets were done wrong

jkozdon/occa,lcw/occa,jkozdon/occa,jkozdon/occa,libocca/occa,libocca/occa,jkozdon/occa,lcw/occa,jkozdon/occa,lcw/occa,libocca/occa,lcw/occa,libocca/occa,lcw/occa,jkozdon/occa,lcw/occa