Evaluation of Blue GenestrongQstrong Hardware Support for Transactional.pdfVIP

Evaluation of Blue Gene/Q Hardware Support for Transactional Memories Amy Wang Matthew Gaudet Peng Wu IBM Toronto Software Lab. Dep. of Computing Science IBM Research Markham, ON, Canada University of Alberta Yorktown, NY, USA aktwang@ Edmonton, AB, Canada pengwu@@ mgaudet@ualberta.ca José Nelson Amaral Martin Ohmacht Christopher Barton Dep. of Computing Science IBM Research IBM Toronto Software Lab. University of Alberta Yorktown, NY, USA Markham, ON, Canada Edmonton, AB, Canada mohmacht@ kbarton@ jamaral@ualberta.ca Raul Silvera Maged Michael IBM Toronto Software Lab. IBM Research Markham, ON, Canada Yorktown, NY, USA rauls@ magedm@ ABSTRACT memory (HTM) [1, 2, 17]. An early implementation of HTM This paper describes an end-to-end system implementation was never distributed commercially [6]. For the HTM by of the transactional memory (TM) programming model on Azul, there is little public disclosure on the implementa- top of the hardware transactional memory (HTM) of the tion and no performance study of the TM support [5]. The Blue Gene/Q (BG/Q)