Hi all, There are no public LPDDR4 data sheets, hence the absence of an LPDDR4 configuration. Ramulator will only slow the simulation down, so I’d suggest to stay with the gem5 DRAM controller. Instead, I’d suggest to subclass the LPDDR3 into a MyExtrapolatedLPDDR4, and simply change the tBURST to match the LPDDR4 in question. This should be good enough for most use-cases.
Andreas From: gem5-users <[email protected]<mailto:[email protected]>> on behalf of Jeffrey Ferrari Lukman <[email protected]<mailto:[email protected]>> Reply-To: gem5 users mailing list <[email protected]<mailto:[email protected]>> Date: Friday, 4 December 2015 at 17:49 To: gem5 users mailing list <[email protected]<mailto:[email protected]>> Subject: Re: [gem5-users] Memory type for Samsung Exynos Hi Louisa Bessad, I'm still a newbie in gem5, but try to go to this link : https://github.com/CMU-SAFARI/ramulator . If you can combine the ramulator with the gem5, I believe you can get the memory properties (LPDDR3 & LPDDR4) that you are looking for. Good luck. Best Regards, Jeffrey F. Lukman On Fri, Dec 4, 2015 at 11:37 AM, Louisa Bessad <[email protected]<mailto:[email protected]>> wrote: Hi, I am currently working on a Samsung Exynos 7 Octa 7420 and I want to simulate its execution in gem5. This chip has a LPDDR4 SDRAM interface. I read the configuration of the different memory types available in gem5 but none of these configurations really correspond to my chip. Do you have any idea about the memory type that I should use? I hesitate between LPDDR3_1600_x32 and DDR4 memory type. Thanks _______________________________________________ gem5-users mailing list [email protected]<mailto:[email protected]> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users 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.
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