uct_index 67 opal/mca/btl/uct/btl_uct_device_context.h static _Thread_local int uct_index = -1; uct_index 69 opal/mca/btl/uct/btl_uct_device_context.h context_id = uct_index; uct_index 71 opal/mca/btl/uct/btl_uct_device_context.h context_id = uct_index = opal_atomic_fetch_add_32 ((opal_atomic_int32_t *) &next_uct_index, 1) %