Hello, No, I would not count on all of the instructions being fully implemented. However, every time gem5 encounters an unimplemented instruction it will print a warning. You can use those warnings to decide if the unimplemented instructions are important for your workload or not.
Cheers, Jason On Wed, Jul 27, 2022 at 5:02 PM Abdelrahman S. Hussein < abdelrahman.sob...@gmail.com> wrote: > Hi, > > Thanks a lot for your reply. > > I got the CPU info by printing the /proc/cpuinfo file on the image while > on full system mode on gem5. Can we safely assume that the following flags > are fully implemented and functional? For example, as per this page from > gem5 documentation > <https://www.gem5.org/documentation/general_docs/architecture_support/>, > only SSE is implemented and x87 is partially implemented, however, the > following flags say something a bit different that SSE2 is supported. > > So, again, my question is: Can I safely rely on these flags being fully > implemented? > > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat >> pse36 clflush acpi mmx fxsr sse sse2 ss tm ia64 pbe syscall nx mmxext >> fxsr_opt rdtscp lm 3dnowext 3dnow nopl cpuid pni monitor ssse3 lahf_lm cpb >> proc_feedback pti clflushopt clwb overflow_recov > > > Thanks. > > -- > > *Best,Abdelrahman Hussein* > MSc. Student -- Graduate RA/TA > School of Computing Sciences > Simon Fraser University, Canada > > > On Tue, Jul 26, 2022 at 7:53 AM Jason Lowe-Power <ja...@lowepower.com> > wrote: > >> Hello, >> >> We support some of those instructions, but not all of them. I suggest >> running your workloads and watching out for unimplemented instruction >> warnings. >> >> Cheers, >> Jason >> >> On Mon, Jul 25, 2022 at 11:08 PM Abdelrahman S. Hussein < >> abdelrahman.sob...@gmail.com> wrote: >> >>> Hello, >>> >>> I am trying to run SPEC OMP 2012 in Full System mode on gem5. When I try >>> to run it, I get the following error: >>> >>> Please verify that both the operating system and the processor support >>>> Intel(R) X87, CMOV, MMX, FXSAVE, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2 and >>>> POPCNT instructions. >>>> >>> >>> The image has Ubuntu 18 and the kernel is vmlinux-5.4.49 downloaded >>> from gem5 website. CPU is AtomicCPU and all the implementation is for x86. >>> >>> My question is: does gem5 support the above Intel extensions for SIMD >>> and Vectorization? I tried to look into the gem5 resources, but I couldn't >>> find something clear on this. >>> >>> Thanks! >>> >>> -- >>> >>> *Best,Abdelrahman Hussein* >>> MSc. Student -- Graduate RA/TA >>> School of Computing Sciences >>> Simon Fraser University, Canada >>> -- >>> >>> -- >>> >>> *Best,Abdelrahman Hussein* >>> MSc. Student -- Graduate RA/TA >>> School of Computing Sciences >>> Simon Fraser University, Canada >>> _______________________________________________ >>> gem5-users mailing list -- gem5-users@gem5.org >>> To unsubscribe send an email to gem5-users-le...@gem5.org >>> >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-le...@gem5.org >> > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-le...@gem5.org >
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