Hi, I am a graduate student interested in GEM5 simulator and am currently trying to carry out experiments using gem5.\ I compiled VEGA_X86/gem5.opt using gcn-gpu images on source gem5-v22.0.0, but it only seems to support VEGA10 (gfx900,gfx902), so my first question is, Does gem5 now support the newer VEGA20 (gfx906) model?\ Second, I want to execute HIP assembly code, but in SE mode, gfx900 assembler V3 format kernel always generates the following error:\ \ >build/VEGA_X86/sim/syscall_emul.cc:74: warn: ignoring syscall >get_mempolicy(...)\ >build/VEGA_X86/sim/syscall_emul.cc:74: warn: ignoring syscall madvise(...)\ >build/VEGA_X86/gpu-compute/gpu_compute_driver.cc:887: warn: unimplemented >ioctl: AMDKFD_IOC_MAP_MEMORY_TO_GPU\ >kernel exec\ >build/VEGA_X86/arch/x86/faults.cc:165: panic: Tried to read unmapped address >0x7373656363e9.\ >PC: (0x7ffff6fb56e6=>0x7ffff6fb56ed).(0=>1), Instr: MOV_R_M : ld rdi, >DS:\[rax + 0x88\]\ >Memory Usage: 2573064 KBytes\ >Program aborted at tick 80121757000\ \ I can't find the reason for the problem. My gfx900 assembler kernel code was obtained by compiling a simple HIP C program with the option save-temps, which should be fine because the gfx906 code I got the same way executes correctly on AMD GPU hardware devices.\ \ Final,I want to use AMD's GPU performance profiling tool rocprofiler to analyze Benchmark behavior, but I don't know how to use this tool in the emulator. My confusion is that Benchmark has to be passed into a configuration script to make sense, rather than being used on its own, so the problem is how to use the tool to monitor the metrics gem5 emulates when the GPU component is executing a GPU program. Now there is no solution, how to use external performance analysis tools in the simulator? Also, is there a gprof tutorial supported by gem5?
Looking forward to your reply, thank you very much!
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