Hi Andreas, It is working now, as I set cpu-type into timing. However, the results of system.cpu1-3 are still 0. Is that mean I didnt' apply any memory to cpu1-3? Thanks, Menglong
On Thu, May 22, 2014 at 5:14 AM, Andreas Hansson <andreas.hans...@arm.com>wrote: > Hi Menglong, > > 1. The memory type should not have any impact here. > 2. I suspect you are running in atomic mode, and thus the DRAM timing > model is never used. > > Hope that helps. > > Andreas > > From: Menglong Guan via gem5-users <gem5-users@gem5.org> > Reply-To: Menglong Guan <menglong.g...@uconn.edu>, gem5 users mailing > list <gem5-users@gem5.org> > Date: Wednesday, 21 May 2014 17:06 > To: "m5-us...@m5sim.org" <m5-us...@m5sim.org> > Subject: [gem5-users] Problem about gem5 with DRAMSim2 > > Dear All, > > I am new to gem5, and now runing DRAMSim2 which provided in “ext/dramsim2” > as the mem-type in se mode. There are 2 problems confused me a lot. > > The commend line as below > > ./build/X86/gem5.opt -d output/ ./configs/example/se.py -n 4 --caches > --l2cache --l2_size=1MB --mem-size=4096MB -I 100000000 --mem-type=dramsim2 > > 1. 1. When I change the number of cpu into 4, the results of cpu > 1,2,3 in stats.txt are all 0. There is only cpu0 has results. Does this > mean the mem-type of DRAMSim2 can only applied to one cpu? Or I need to > change some config in some python file to connect DRAMSim2 to cpu 1,2,3? > > 2. 2. As I changed device parameters, like “refresh period” “tRFC”, > in /gem5/ext/dramsim2/DRAMSim2/ini/ .ini file, only “host_inst_rate, > host_op_rate, host_tick_rate, host_mem_usage, host_seconds” changed. By my > understanding, these results not reflect the performance of my system or > memory model. However, as the refresh period or tRFC changed the > performance should changed a lot. Is this mean I didn't well connect > DRAMSim2 with gem5 system? > > Thanks, > > Menglong > > -- 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 > -- *Menglong Guan, MSDepartment of Electrical & Computer Engineering University of Connecticut*
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