And I guess you need to be very careful here by doing this. If you modify the parameters and run the mcpat again, that may result in a new processor design, which is not expected for DVFS. You may want separate the initialization phase and computation phase in mcpat, do initialization once at nominal vdd, and then use maybe different current values according to different vdd for computation phases.
Hao On Sat, Mar 9, 2013 at 6:59 AM, Iordan Alexandru <[email protected]> wrote: > Hi > > I my experience, the only way to change the supply voltage in McPAT is to > change the values in the macpat/cacti/technology.cc file. Make sure you > change the values for the technology (180/90/65/45/32 nm ) and device type > (HP/LSTP/LOP) you use in your XML input file. You need to rebuild McPAT > after that. > > Regards, > Alexandru Iordan > > > ------------------------------ > *From:* Xin He <[email protected]> > *To:* [email protected] > *Sent:* Saturday, March 9, 2013 10:45 AM > *Subject:* [gem5-users] Supply voltage scaling in MCPAT > > Hi, everyone. > I am using gem5+MCPAT now, we can change frequency by --clock=XXX, but how > to change the supply voltage in MCPAT, I find the power is only linear > scaled with if we don't change the supply voltage. > Can anyone helps?I would be very grateful. > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > > > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > -- ------------------------------------------------------ Wang, Hao http://homepages.cae.wisc.edu/~wangh/ Ph.D. candidate Dept. of Electrical & Computer Engineering University of Wisconsin, Madison B.S. from Department of Microelectronics School of Electronics Engineering and Computer Science Peking University
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