The defunct processor codenamed `` Rock '' was cancelled after 2009 .
Although many people reported that Sun Microsystems ' UltraSPARC T1 ( known as `` Niagara '' until its 14 November 2005 release ) and the now defunct processor codenamed `` Rock '' ( originally announced in 2005 , but after many delays cancelled in 2009 ) are implementations of SPARC focused almost entirely on exploiting SMT and CMP techniques , Niagara is not actually using SMT .
Simultaneous multithreading