Hi Haseung On 06/03/2023 11:47, 봉하승 wrote:
Hi Giacomo, Got it, thanks for your reply. Can you tell me what architecture or processor the default ARM configuration used in gem5'O3CPU is based on? The O3CPU is ISA agnostic, so it is not Arm specific. The architecture under use is defined by the ArmRelease object (not from the CPU type) and it is configurable from python. We run with the following extensions turned on by default in FS mode. https://github.com/gem5/gem5/blob/stable/src/arch/arm/ArmSystem.py#L129 You can tweak the release object and provide your own version, but unless there is a real motivation I would recommend you to stick with one of the architected versions (Armv8.1, Armv8.2, etc) Kind Regards Giacomo Regards Hasueng 2023년 3월 6일 (월) 오후 7:01, Giacomo Travaglini <giacomo.travagl...@arm.com<mailto:giacomo.travagl...@arm.com>>님이 작성: Hi Haseung, In Arm FP registers share the same storage with SIMD (Vector) registers, so we usually refer to them as SIMD&FP registers. This is why in gem5 we don’t use the floating point register type and we use the vector type only Kind Regards Giacomo From: 봉하승 via gem5-users <gem5-users@gem5.org<mailto:gem5-users@gem5.org>> Reply to: The gem5 Users mailing list <gem5-users@gem5.org<mailto:gem5-users@gem5.org>> Date: Saturday, 4 March 2023 at 14:25 To: "gem5-users@gem5.org<mailto:gem5-users@gem5.org>" <gem5-users@gem5.org<mailto:gem5-users@gem5.org>> Cc: "hasu...@ajou.ac.kr<mailto:hasu...@ajou.ac.kr>" <hasu...@ajou.ac.kr<mailto:hasu...@ajou.ac.kr>> Subject: [gem5-users] There is not 'IsFloating' in arm/operands.isa Hi, I'm trying to use gem5 to simulate SPEC2017's LBM. LBM is an FP workload, and the simulation shows that "system.switch_cpus.commit.floating" is zero in stats.txt. As a result of a little search, it was confirmed that instructions such as fadd and fsub were classified as 'isVector'. I wonder why fadd is not 'isFloating' but 'isVector'. And when classified like this, is there any possibility of simulation error in inst_queue or fu_pool? If you know, please reply. Thanks, Haseung 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. 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.
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