Hello,
I am doing atom core simulation with Marssx86 and Parsec benchmark suites.
However, for some benchmarks, they never finish. The log file has a lot
of 'Invalid opcode ; split_invalid_basic_blocks ...; first_insn_in_bb? '
lines.
Has any body run into the same problem before?
The benchmarks run well with OOO cores.
Thank you very much!
--Qiuyun
The atom configuration is as follows:
core:
atom4w:
base: atom
params:
FETCH_WIDTH: 4
ISSUE_PER_CYCLE: 4
ALU_FU_COUNT: 4
FPU_FU_COUNT: 4
AGU_FU_COUNT: 4
DISPATCH_Q_SIZE: 32
STORE_BUF_SIZE: 32
FORWARD_BUF_SIZE: 64
COMMIT_BUF_SIZE: 64
machine:
single_atom4w:
description: Atom 4 wide single core
min_contexts: 1
max_contexts: 1
cores:
- type: atom4w
name_prefix: atom_
option:
threads: 1
caches:
- type: l1_128K
name_prefix: L1_I_
insts: $NUMCORES # Per core L1-I cache
- type: l1_128K
name_prefix: L1_D_
insts: $NUMCORES # Per core L1-D cache
- type: l2_2M
name_prefix: L2_
insts: 1 # Shared L2
memory:
- type: dram_cont
name_prefix: MEM_
insts: 1 # Single DRAM controller
option:
latency: 50 # in nano seconds
interconnects:
- type: p2p
connections:
- core_$: I
L1_I_$: UPPER
- core_$: D
L1_D_$: UPPER
- L1_I_0: LOWER
L2_0: UPPER
- L1_D_0: LOWER
L2_0: UPPER2
- L2_0: LOWER
MEM_0: UPPER
My log file is like this:
Invalid opcode at 0xffffffff81009e17: split_invalid_basic_blocks 0,
first_insn_in_bb? 0
Completed 58534000 cycles, 14576434 commits: 1143498 Hz,
137592 insns/sec: rip ffffffff8116fd6d
Completed 58673000 cycles, 14630894 commits: 692219 Hz,
271210 insns/sec: rip 00007fbef6267619
Completed 58811000 cycles, 14684571 commits: 689423 Hz,
268160 insns/sec: rip ffffffff8116fad7
Invalid opcode at 0xffffffff81009e17: split_invalid_basic_blocks 0,
first_insn_in_bb? 0
Completed 59055000 cycles, 14709426 commits: 1216208 Hz,
123888 insns/sec: rip ffffffff8116fd6d
Invalid opcode at 0xffffffff81009e17: split_invalid_basic_blocks 0,
first_insn_in_bb? 0
Completed 59224000 cycles, 14753235 commits: 843848 Hz,
218746 insns/sec: rip ffffffff810a0092
Completed 59366000 cycles, 14807094 commits: 707902 Hz,
268499 insns/sec: rip ffffffff81098a04
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