base_reg           19 opal/mca/btl/ugni/btl_ugni_smsg.c     mca_rcache_base_registration_t *base_reg =
base_reg           26 opal/mca/btl/ugni/btl_ugni_smsg.c     mbox->attr.smsg_attr.mbox_offset    = (uintptr_t) mbox->super.ptr - (uintptr_t) base_reg->base;
base_reg           27 opal/mca/btl/ugni/btl_ugni_smsg.c     mbox->attr.smsg_attr.msg_buffer     = base_reg->base;