Re: [gem5-users] Requests to Main Memory

Hi Reza, Memory controllers (including NVMain) are behind a slave port and are generally not aware of what the cache is doing – In other words, you want to look in the gem5 source if you want to do something special for LLC misses. This will be different for Ruby and classic caches: If you

[gem5-users] Parsing options in hmctest.py

Hi All, I was trying to add "page policy" as an option in hmctest.py file for simulation purpose. I added following code: parser.add_option("--page_policy", type = "int", default = 2, help = "0:open; 1:open_adaptive; 2: close; 3:close_adaptive") How would I verify if it worked

[gem5-users] 回复: Simulated data information - Cache and memory

I think you can find these information in the config.ini. 来自我的华为手机 "Moussa, Ayman" 编写： >___ >gem5-users mailing list >gem5-users@gem5.org

[gem5-users] A tutorial of gem5+kvm for X86

Hi everyone, Is there any tutorial on how to use KVM with gem5, especially for X86? I'm asking because I need to perform a lot of gem5 full system simulation runs with detailed cpu-type and with NVMainMemory as a memory controller. Using a regular non-KVM gem5 image, only 10M instructions

Re: [gem5-users] Simulated data information - Cache and memory

Hello, You can find the information on caches in m5out/config.ini under [system.cpu0.dcache], [system.cpu0.icache] etc. (search for "type=cache"). You may want to see src/mem/cache/Cache.py for Cache SimObject declaration, configs/common/Caches.py for base implementations of the caches

[gem5-users] Simulated data information - Cache and memory

Hi everyone Could someone please tell me what parameters represent information about the cache? i.e l1,l2,l3 I and D cache sizes, associativity , access time etc. Is there any information about memory access time too? I searched the stats.txt and config.ini but I could not find it anything

Re: [gem5-users] Overriding default values

Hi Ayman, You may need to change the system clock with "--sys-clock". Its default value is 1GHz. sys-clock defines "Top-level clock for blocks running at system speed" and cpu-clock defines "Clock for blocks running at CPU speed". Majid On Wed, Feb 8, 2017 at 9:47 AM, Moussa, Ayman

[gem5-users] Overriding default values

Hi all When I run a simulation using the standard se.py, why aren't the supplied arguments to script overwritten? For example build/X86/gem5.opt configs/example/se.py --cpu-clock="2GHz" -c ../MM1.x86 -o "32" When I check stats.txt, I see this system.clk_domain.clock

[gem5-users] Question about arm/neon instruction timing in gem5

Hello All, I am using gem5 to perform some research on ARM/NEON performance. In particular I'm looking into instruction timing and studying the ARM Cortex-A9 ( armv7 with NEON). Can you help me to clarify the following questions? 1.- ARM's documentation (Cortex™-A9 NEON™ Media

Re: [gem5-users] Requests to Main Memory

Hi Jason, Thank you for your response and reference to your book. I will read that. I'm using NVmain as memory type. In this case, should I look into gem5 source files or NVmain source files? I'm looking for a file/function that checks if the access to last level cache is a miss, then sends the

Re: [gem5-users] Requests to Main Memory

Hi Reza, This is handled by the port interface between the cache and the main memory. For instance, at the DRAM controller, every request calls recvTimingReq(). You may learn something from this chapter of my book: http://learning.gem5.org/book/part2/memoryobject.html. The caches and the memory

[gem5-users] Requests to Main Memory

Dear all, When we experience a cache miss at last level cache, we should send a request to main memory and ask for the missed block. I was wondering if you could help me find a file or function that does send requests to main memory (and receive responses from that.) Thank you. Reza

Re: [gem5-users] Error with GLIBC 2.7 while trying to run C program in FS Mode

Hi Elena, Glad to hear that! :) You're welcome! Cheers, Ferran O. On 08/02/17 12:18, Woo L.L. wrote: Dear Ferran, Thank you so much for all your insights. I managed to re-compile the benchmark after chroot to the image. I also solved the external libraries issues and managed to run it on

Re: [gem5-users] Error with GLIBC 2.7 while trying to run C program in FS Mode

Dear Ferran, Thank you so much for all your insights. I managed to re-compile the benchmark after chroot to the image. I also solved the external libraries issues and managed to run it on both Gem5 original and the other version of Gem5. Thanks so much! Regards, Elena -Original