STATIC SOFTWARE SCHEMES Cache on/off

Cache on/off control

• Veidenbaum, 1986, Univ. of Illinois

• Assumption: the program structure is based on parallel/serial loops;

• The essence: compiler inserts special purpose instructions for cache consistency maintenance only at loop boundaries, and at subroutine calls

• Instructions: Flush, Cache-on, Cache-off

• DoAll: Cache-on + Flush

• DoAccross: Cache-off (basically)

• DoSerial: if Cache is Off then Cache-on + Flush

• DoEnd: restore the state + Flush (if necessary)