Hey Matthias, It would be great if we could get an example config checked into gem5! This is a common thing that many of us are working on :).
Cheers, Jason On Fri, Feb 28, 2020 at 10:44 AM Dr. Matthias Jung <jun...@eit.uni-kl.de> wrote: > Hi Ben, > > We have a similar setup, I could bring you in contact with some people > here. > > Greetings, > Matthias > > -- > > Dr.-Ing. Matthias Jung > Expert „Virtual Hardware Engineering“ > Embedded Systems Engineering > Fraunhofer IESE > Fraunhofer-Platz 1 | 67663 Kaiserslautern | Germany > Phone: +49 631 / 6800 - 2279 <+49%20631%20/%206800%20-%202279> | Fax: +49 > 631 / 6800 - 9 2279 <+49%20631%20/%206800%20-%209%202279> > Mobile: +49 151 / 15672508 > www.iese.fraunhofer.de > Email: matthias.j...@iese.fraunhofer.de > > Am 28.02.2020 um 17:38 schrieb Jason Lowe-Power <ja...@lowepower.com>: > > > Hi Ben, > > This is a great question! To be honest, I don't know the answer. I think > it will have something to do with the E820 entries in the config file, but > I don't know exactly how to do it. See this issue about trying to create a > more realistic memory layout for Linux: > https://gem5.atlassian.net/browse/GEM5-11. > > Let us know if you figure anything out! Feel free to comment on that issue > or the sub tasks. > > Cheers, > Jason > > On Thu, Feb 27, 2020 at 8:35 AM Ben Perach <bper...@gmail.com> wrote: > >> Hi all, >> >> I am trying to create a multicore system with two memory types, one is a >> regular DRAM and the other memory has a longer latency. The memories are >> located on different memory channels but have the same interconnect >> latency, the only latency difference is between the memory controller and >> the memory itself due to memory technology. The address range of each >> memory is continues and not interleaved. (This is something like a >> multicore system with DRAM and persistent memory). >> >> In order to be able to assign pages specifically to each memory, I want >> the OS to recognize the two memories as two different NUMA nodes. >> How can I make gem5 fs to report to the OS that the two memory address >> ranges belong to different NUMA nodes? >> Can I add some component to the configuration script to make this happen? >> Do I need to change the BIOS somehow? >> >> (I have tried using the numa=fake tool on Linux, but it did not create >> new fake nodes.) >> >> Thank you very much, >> Ben Perach >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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