資料：
官方資料：http://www.gem5.org/PARSEC_benchmarks
左鵬飛師兄：http://pfzuo.github.io/2016/06/06/Configure-and-run-parsec-2.1-benchmark-in-GEM5/
PARSEC2.1負載：http://www.cs.utexas.edu/~parsec_m5/
操作：
0、編譯ALPHA框架
scons build/ALPHA/gem5.opt
1馆纳、首先在gem5目錄下新建一個文件夾用于存儲PARSEC Benchmark的disk image
cd gem5
?mkdir parsec_images
?cd parsec_images
2勿锅、下載初始的系統(tǒng)文件澳化，并解壓，再重命名文件夾（重命名可選）
?wget http://www.m5sim.org/dist/current/m5_system_2.0b3.tar.bz2
?tar jxf m5_system_2.0b3.tar.bz2
?mv m5_system_2.0b3 system
3哗咆、下載PARSEC Benchmark相關(guān)文件滋戳，并替換掉system文件夾中的相應文件
下載PARSEC對應的linux kernel文件，并替換掉 ‘system/binaries/vmlinux’
?cd ./system/binaries/
?wget http://www.cs.utexas.edu/~parsec_m5/vmlinux_2.6.27-gcc_4.3.4
（在ubuntu中下載不了的在主機上下載好后拧抖，復制到相應的目錄中然后進行后需操作）
?rm vmlinux
?mv vmlinux_2.6.27-gcc_4.3.4 vmlinux
下載PARSEC對應的PAL code文件， 并替換掉 ‘system/binaries/ts_osfpal’
?wget http://www.cs.utexas.edu/~parsec_m5/tsb_osfpal
?rm ts_osfpal
?mv tsb_osfpal ts_osfpal
下載PARSEC-2.1 Disk Image并解壓
?cd ../disks/
?wget http://www.cs.utexas.edu/~parsec_m5/linux-parsec-2-1-m5-with-test-inputs.img.bz2
?bzip2 -b linux-parsec-2-1-m5-with-test-inputs.img.bz2
4免绿、修改.bashrc添加下面的環(huán)境變量
ls -a
. ?.. ?.bash_history ?.bashrc ?.profile ?.viminfo
vim .bashrc
增加export M5_PATH=$M5_PATH:/home/用戶名/gem5/parsec-images/system/
使其生效唧席，并重新啟動終端
source .bashrc
5、進入gem5文件夾嘲驾，修改兩個文件（SysPaths.py 和 Benckmarks.py）配置parsec的路徑和文件名
打開SysPaths.py配置parsec disk image的完整路徑：
?vim ./configs/common/SysPaths.py
修改前：
?path = [ ’/dist/m5/system’, ’/n/poolfs/z/dist/m5/system’ ]
修改后：
?path = [ ’/dist/m5/system’, ’/home/用戶名/gem5/parsec_images/system’ ]
打開Benchmarks.py淌哟，修改image文件名：
?vim ./configs/common/Benchmarks.py
修改前：
?elif buildEnv['TARGET_ISA'] == 'alpha':
? ? ?return env.get('LINUX_IMAGE', disk('linux-latest.img'))
修改后：
?elif buildEnv['TARGET_ISA'] == 'alpha':
? ? ?return env.get('LINUX_IMAGE', disk('linux-parsec-2-1-m5-with-test-inputs.img'))
6、生成benchmark的script文件辽故，用于運行benchmark
在gem5目錄下新建文件夾benchmark下載PARSEC script生成包徒仓，并解壓：
cd ~/gem5
mkdir benchmark
?wget http://www.cs.utexas.edu/~parsec_m5/TR-09-32-parsec-2.1-alpha-files.tar.gz
?tar zxvf TR-09-32-parsec-2.1-alpha-files.tar.gz
生成script命令：
cd?TR-09-32-parsec-2.1-alpha-files
?./writescripts.pl <benchmark> <nthreads>
例如 ./writescripts.pl vips 1
有以下13種benchmark：
?blackscholes
?bodytrack
?canneal
?dedup
?facesim
?ferret
?fluidanimate
?freqmine
?streamcluster
?swaptions
?vips
?x264
?rtview
根據(jù)生成的script文件運行g(shù)em5：
cd ~/gem5
?./build/ALPHA/gem5.opt ./configs/example/fs.py -n <number> --script=./path/to/runScript.rcS --caches --l2cache -F 5000000000
例如：./build/ALPHA/gem5.opt ./configs/example/fs.py ?--script=./benchmark/TR-09-32-parsec-2.1-alpha-files/vips_1c_test.rcS --caches --l2cache -F 5000000000
新開一個窗口，使用telnet與gem5模擬系統(tǒng)進行交互
?telnet localhost 3456 ?
結(jié)果顯示：
jabingu@ubuntu:~/gem5$ ?telnet localhost 3456?
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
==== m5 slave terminal: Terminal 0 ====
M5 console: m5AlphaAccess @ 0xFFFFFD0200000000
Got Configuration 623
memsize 20000000 pages 10000?
First free page after ROM 0xFFFFFC0000018000
HWRPB 0xFFFFFC0000018000 l1pt 0xFFFFFC0000040000 l2pt 0xFFFFFC0000042000 l3pt_rpb 0xFFFFFC0000044000 l3pt_kernel 0xFFFFFC0000048000 l2reserv 0xFFFFFC0000046000
kstart = 0xFFFFFC0000310000, kend = 0xFFFFFC0000855898, kentry = 0xFFFFFC0000310000, numCPUs = 0x1
CPU Clock at 2000 MHz IntrClockFrequency=1024?
Booting with 1 processor(s)?
KSP: 0x20043FE8 PTBR 0x20
Console Callback at 0x0, fixup at 0x0, crb offset: 0x510
Memory cluster 0 [0 - 392]
Memory cluster 1 [392 - 65144]
Initalizing mdt_bitmap addr 0xFFFFFC0000038000 mem_pages 10000?
ConsoleDispatch at virt 10000658 phys 18658 val FFFFFC00000100A8
unix_boot_mem ends at FFFFFC0000076000?
k_argc = 0?
jumping to kernel at 0xFFFFFC0000310000, (PCBB 0xFFFFFC0000018180 pfn 1067)
CallbackFixup 0 18000, t7=FFFFFC000070C000
Linux version 2.6.13 (hsul@zed.eecs.umich.edu) (gcc version 3.4.3) #1 SMP Sun Oct 8 19:52:07 EDT 2006
Booting GENERIC on Tsunami variation DP264 using machine vector DP264 from SRM
Major Options: SMP LEGACY_START VERBOSE_MCHECK?
Command line: root=/dev/hda1 console=ttyS0
memcluster 0, usage 1, start ? ? ? ?0, end ? ? ?392
memcluster 1, usage 0, start ? ? ?392, end ? ?65536
freeing pages 1069:65536
reserving pages 1069:1070
SMP: 1 CPUs probed -- cpu_present_mask = 1
Built 1 zonelists
Kernel command line: root=/dev/hda1 console=ttyS0
PID hash table entries: 4096 (order: 12, 131072 bytes)
Using epoch = 1900
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 6, 524288 bytes)
Memory: 507392k/524288k available (3314k kernel code, 13272k reserved, 983k data, 224k init)
Mount-cache hash table entries: 512
SMP mode deactivated.
Brought up 1 CPUs
SMP: Total of 1 processors activated (4002.20 BogoMIPS).
NET: Registered protocol family 16
EISA bus registered
pci: enabling save/restore of SRM state
SCSI subsystem initialized
srm_env: version 0.0.5 loaded successfully
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
