warn: No functional unit for OpClass VectorArith1Src & etc.

[yuxuan-z19]

OS WSL2 Ubuntu-20.04
Branch used develop
Python Python2.7.18

Good day. My friends and I met these warnings while testing the blackscholes benchmark. The warnings said that some of the vector ops aren't available

warn: CheckedInt already exists in allParams. This may be caused by the Python 2.7 compatibility layer.
warn: Enum already exists in allParams. This may be caused by the Python 2.7 compatibility layer.
warn: ScopedEnum already exists in allParams. This may be caused by the Python 2.7 compatibility layer.
gem5 Simulator System.  http://gem5.org
gem5 is copyrighted software; use the --copyright option for details.

gem5 version [DEVELOP-FOR-V20.1]
gem5 compiled Jan  6 2022 17:53:18
gem5 started Jan  7 2022 10:01:00
gem5 executing on DESKTOP-9F2JKA5, pid 1176
command line: /mnt/d/AC/gem5/build/RISCV/gem5.opt /mnt/d/AC/gem5/configs/example/riscv_vector_engine.py '--cmd=/mnt/d/AC/gem5/riscv-vectorized-benchmark-suite/_jacobi-2d/bin/jacobi-2d_vector.exe 1 /mnt/d/AC/gem5/riscv-vectorized-benchmark-suite/_jacobi-2d/input/in_256.input output_vector.txt'

Global frequency set at 1000000000000 ticks per second
warn: DRAM device capacity (32768 Mbytes) does not match the address range assigned (2048 Mbytes)
warn: Unknown operating system; assuming Linux.
warn: No functional unit for OpClass VectorArith1Src
warn: No functional unit for OpClass VectorArith2Src
warn: No functional unit for OpClass VectorArith3Src
warn: No functional unit for OpClass VectorMaskLogical
warn: No functional unit for OpClass VectorReduction
warn: No functional unit for OpClass VectorConvertIntToFP
warn: No functional unit for OpClass VectorConvertFPToInt
warn: No functional unit for OpClass VectorWConvertFPToInt
warn: No functional unit for OpClass VectorWConvertIntToFP
warn: No functional unit for OpClass VectorWConvertFPToFP
warn: No functional unit for OpClass VectorNConvertFPToInt
warn: No functional unit for OpClass VectorNConvertIntToFP
warn: No functional unit for OpClass VectorNConvertFPToFP
warn: No functional unit for OpClass VectorFPCompare
warn: No functional unit for OpClass VectorIntCompare
warn: No functional unit for OpClass VectorSlideUp
warn: No functional unit for OpClass VectorSlideDown
warn: No functional unit for OpClass VectorToScalar
warn: No functional unit for OpClass VectorMemoryLoad
warn: No functional unit for OpClass VectorMemoryStore
warn: No functional unit for OpClass VectorConfig
0: system.remote_gdb: listening for remote gdb on port 7000

We analyzed the stats.txt, and somehow it showed us these OpClass are used:

system.cpu.op_class_0::VectorArith1Src           1600      0.01%     98.47% # Class of committed instruction
system.cpu.op_class_0::VectorArith2Src         227200      0.96%     99.43% # Class of committed instruction
system.cpu.op_class_0::VectorArith3Src          62400      0.26%     99.69% # Class of committed instruction
system.cpu.op_class_0::VectorMaskLogical            0      0.00%     99.69% # Class of committed instruction
system.cpu.op_class_0::VectorReduction              0      0.00%     99.69% # Class of committed instruction
system.cpu.op_class_0::VectorConvertIntToFP         6400      0.03%     99.72% # Class of committed instruction
system.cpu.op_class_0::VectorConvertFPToInt         9600      0.04%     99.76% # Class of committed instruction
system.cpu.op_class_0::VectorWConvertFPToInt            0      0.00%     99.76% # Class of committed instruction
system.cpu.op_class_0::VectorWConvertIntToFP            0      0.00%     99.76% # Class of committed instruction
system.cpu.op_class_0::VectorWConvertFPToFP            0      0.00%     99.76% # Class of committed instruction
system.cpu.op_class_0::VectorNConvertFPToInt            0      0.00%     99.76% # Class of committed instruction
system.cpu.op_class_0::VectorNConvertIntToFP            0      0.00%     99.76% # Class of committed instruction
system.cpu.op_class_0::VectorNConvertFPToFP            0      0.00%     99.76% # Class of committed instruction
system.cpu.op_class_0::VectorFPCompare          11200      0.05%     99.81% # Class of committed instruction
system.cpu.op_class_0::VectorIntCompare          1600      0.01%     99.82% # Class of committed instruction
system.cpu.op_class_0::VectorSlideUp                0      0.00%     99.82% # Class of committed instruction
system.cpu.op_class_0::VectorSlideDown              0      0.00%     99.82% # Class of committed instruction
system.cpu.op_class_0::VectorToScalar               0      0.00%     99.82% # Class of committed instruction
system.cpu.op_class_0::VectorMemoryLoad          9600      0.04%     99.86% # Class of committed instruction
system.cpu.op_class_0::VectorMemoryStore         1600      0.01%     99.86% # Class of committed instruction
system.cpu.op_class_0::VectorConfig             32000      0.14%    100.00% # Class of committed instruction

Questions
Should we ignore the warnings above?
If yes, is the data shown in stats.txt reliable?
Else, what could we do to solve these warnings?