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;