Hi Qi - Not sure your exact needs, but you can use a simple model to estimate DRAM power. Essentially, this: P = P0 + k * BW the model parameters are P0 and k, and the input is the memory bandwidth. You can extract these parameters from a number of places, including the oft cited Micron DDR3 power calculation white paper and other papers: http://www.micron.com/~/media/documents/products/technical-note/dram/tn41_01ddr3_power.pdf http://csl.stanford.edu/~christos/publications/2012.lpddr2.isca.pdf
If you need a more nuanced mode (e.g. on a RAS & CAS basis), just use the Micron tech note. Regards, Pete Stevenson On Tue, Feb 10, 2015 at 12:52 PM, Qi Jia via gem5-users <[email protected] > wrote: > Hi Andreas, > Thanks for your kind reply. I find that the DRAMPower is integrated in the > latest gem5-stable version, right? Currently I am using the previous > gem5-stable version. For that version is there any way to get the main > memory power? > > On Tue, Feb 10, 2015 at 12:09 PM, Andreas Hansson <[email protected] > > wrote: > >> Hi, >> >> The gem5 DRAM controller is integrated with DRAMPower, and the >> energy/power is part of the gem5 stats (just make sure you have the >> appropriate IDD values in the DRAM configuration). Note that this model >> does not include the PHY, interface and controller power. >> >> Andreas >> >> From: Qi Jia via gem5-users <[email protected]> >> Reply-To: Qi Jia <[email protected]>, gem5 users mailing list < >> [email protected]> >> Date: Tuesday, 10 February 2015 16:56 >> To: gem5 users mailing list <[email protected]> >> Subject: [gem5-users] Main memory energy in GEM5 >> >> Hi All, >> I am trying to use gem5 with built-in main memory model for simulation. >> Can I know how to get the power/energy of the main memory? Is that >> necessary to use MCPAT or we have some alternatives to achieve that? >> >> Any suggestion is appreciated. Thanks >> >> >> >> -- IMPORTANT NOTICE: The contents of this email and any attachments are >> confidential and may also be privileged. If you are not the intended >> recipient, please notify the sender immediately and do not disclose the >> contents to any other person, use it for any purpose, or store or copy the >> information in any medium. Thank you. >> >> ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, >> Registered in England & Wales, Company No: 2557590 >> ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, >> Registered in England & Wales, Company No: 2548782 >> > > > > -- > Qi Jia > Graduate Student > Department of Electrical and Computer Engineering > North Carolina State University, Raleigh > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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