Thanks for earliest reply. 1. I know how to set the 256 core in Linux kernel using make menuconfig. However, the main problem is the current gem5 version is not even allowing to run the 16 core for Linux kernel 2.6.28.4, which is always showing kernel panic as I mentioned below. Old version like- 2.7.22.9.smp is running fine but I don't have the original package (don't find it in kernel.org). So I can't reset the number of core. 2. My target is to get exactly 256 core benchmark performance. So, I also like to change those files to obtain those results. Thanks and best regards,
Faisal > On Jul 14, 2017, at 11:32 PM, Jason Lowe-Power <[email protected]> wrote: > > Hello, > > A couple of points: > 1. You probably will need to compile a custom Linux kernel to support 256 > cores. This isn't something that is expected to work out of the box. > 2. I don't think gem5 supports more than 256 cores (and maybe not that many) > without making code modifications. I believe there are a few places where we > use a core bitvector, and I doubt it's bigger than 64-bits. > > Jason > >> On Fri, Jul 14, 2017 at 6:03 AM F. A. Faisal <[email protected]> wrote: >> Dear All, >> >> I basically want to run the benchmarks like- splash or parsec with 256 cores. >> >> Hence, I tried with X86 ISA with the linux kernel from the Parsec site >> (http://www.cs.utexas.edu/~parsec_m5/), which returns the kernel panic with >> "warn: x86 cpuid family 0x0000: unimplemented function 13". >> >> And even I downloaded the kernel from >> (https://www.kernel.org/pub/linux/kernel/v2.6/) (both .bz2 and .gz), which >> also returns the kernel panic with the same warning message (kernel BUG at >> arch/x86/kernel/xsave.c:323). >> >> On the other hand, I download the X86 disk image from- >> - X86 full system image: >> [http://www.m5sim.org/dist/current/x86/x86-system.tar.bz2]. >> Then, I also tried "x86_64-vmlinux-2.6.22.9.smp" which is running fine with >> maximum 8 cores and obviously can't increase the core number. >> Please let me know download link for the stable Linux kernel of X86. >> GEM5> (USED GIT Repository, Download- 28/06/2017) >> Thanks in advance. >> Best regards, >> F. A. Faisal >> >> >> >> >> >> >> _______________________________________________ >> gem5-users mailing list >> [email protected] >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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