Re: [gem5-users] Error while running Gem5 simulation from a Java program.

[Tod via gem5-users]

What are you referencing when you said 'system binaries'? Have you confirmed any valid results before you say:  "Therefore, it looks like M5_PATH is necessary to be able to reference the 'system/binaries' directory"??? Anyway, If you have a valid solution the problem mentioned in the very first email please do write about that. It's messed up over here.  Thanks. --------- 원본 메일 --------- 보낸사람: Guru Prasad <gurup...@buffalo.edu> 받는사람 : Tod <saril...@hanmail.net>, gem5 users mailing list <gem5-users@gem5.org> 날짜: 2014년 5월 06일 화요일, 00시 21분 53초 +0900 제목: Re: [gem5-users] Error while running Gem5 simulation from a Java program. Hi Todd, Apologies on that useless post.. So I tried reproducing the results that you obtained, and sure enough, command line: build/ARM/gem5.opt configs/example/fs.py --kernel=/home/guru/gem5/ kernel/linux-3.3-armdroid/vmlinux --disk-image=/home/guru/gem5/gem5-stable/syste m/disks/android_jb_tiny_4.1.1_r4.img --mem-size=128MB --mem-type=ddr3_1600_x64 - -caches --l2cache --machine-type=VExpress_EMM --cpu-clock=1GHz --scaling-mode=de coupled --cpu-type=atomic Traceback (most recent call last):   File "<string>", line 1, in <module>   File "/home/guru/gem5/gem5-git/src/python/m5/main.py", line 387, in main     exec filecode in scope   File "configs/example/fs.py", line 108, in <module>     bm[0] = SysConfig(disk=bm[0].disk(), mem=options.mem_size,   File "/home/guru/gem5/gem5-git/configs/common/Benchmarks.py", line 53, in disk     return disk(self.diskname)   File "/home/guru/gem5/gem5-git/configs/common/SysPaths.py", line 37, in disk     system()   File "/home/guru/gem5/gem5-git/configs/common/SysPaths.py", line 59, in system     raise ImportError, "Can't find a path to system files." ImportError: Can't find a path to system files. The paths are perfectly valid and run before I did `unset M5_PATH` I also tried the following. export M5_PATH=/home/ and in this case, I ended up with fatal: Could not read bootloader: /home/binaries/boot_emm.arm  @ cycle 40050496 [ArmSystem:build/ARM/arch/arm/system.cc, line 62] Memory Usage: 40050496 KBytes Therefore, it looks like M5_PATH is necessary to be able to reference the 'system/binaries' directory Regards Guru On Mon, May 5, 2014 at 11:10 AM, Tod via gem5-users <gem5-users@gem5.org> wrote: Hi Guru, Please note that I am not using any benchmark with -b option. Please see the command below.  M5_PATH  is irrelevant, since I am using --disk-image parameter, which is right by definition and is already tested by me.   Your suggestion about --script option seems irrelevant too.  Yes I run a shell scrip from a Java program, that shell script contains a command for running the simulation using gem5. And the simulation is all about just using a given script (please see in the command) .rcS file to create a checkpoint. Everything works fine as long as it is run from the command line: i.e., by doing ./MyShellScript.sh But gives the problem mentioned while running it from within the Java program and the error trace is there. Any suggestions? Best regards, Tod --------- 원본 메일 --------- 보낸사람: Guru Prasad <gurup...@buffalo.edu> 받는사람 : Tod <saril...@hanmail.net>, gem5 users mailing list <gem5-users@gem5.org> 날짜: 2014년 5월 05일 월요일, 23시 54분 33초 +0900 제목: Re: [gem5-users] Error while running Gem5 simulation from a Java program. Hi Tod, When you are running a benchmark with the -b option, I believe that the values in configs/common/Benchmarks.py overrides the value provided at the command line. Since you're running this from within Java, I would guess that the M5_PATH environment variable is either not present within the Java environment or is pointing to a location where the disk image described in Benchmarks.py is not present. I believe gem5 also has an addition --script option which allows you to specify an .rcS of your choice without having to modify Benchmarks.py. Regards Guru On Mon, May 5, 2014 at 10:45 AM, Tod via gem5-users <gem5-users@gem5.org> wrote: Sorry, I am still in doubt.  --disk-image is not for specifying the path to the disk image? How come it work fine while run from the command line?  with the same command is used inside the shell script. I am using FS mode, which is clear from the fs.py script file.  But i do not understand what do you mean by this: "no . if you want to run it through the disk image"? Thanks. --------- 원본 메일 --------- 보낸사람: Tanmay Gadre <tanmay....@gmail.com> 받는사람 : Tod <saril...@hanmail.net>, gem5 users mailing list <gem5-users@gem5.org> 날짜: 2014년 5월 05일 월요일, 23시 28분 49초 +0900 제목: Re: [gem5-users] Error while running Gem5 simulation from a Java program. no . if you want to run it through the disk image, you have to write the whole path in Benchmarks.py On Mon, May 5, 2014 at 7:30 PM, Tod via gem5-users <gem5-users@gem5.org> wrote: Hi Tanmay, I forgot to mention it that it works fine if I run the script from command line. But I have to do it through Java program. Further, would it not be enough in this case:  --disk-image=/home/usr/full_system_images/disks/linux-arm-ael1.img Which is already there and is the path to the disk image? Best. --------- 원본 메일 --------- 보낸사람: Tanmay Gadre <tanmay....@gmail.com> 받는사람 : Tod <saril...@hanmail.net>, gem5 users mailing list <gem5-users@gem5.org> 날짜: 2014년 5월 05일 월요일, 22시 17분 17초 +0900 제목: Re: [gem5-users] Error while running Gem5 simulation from a Java program. give the path of your disk image in Benchmarks.py line 57 . google this error if still not clear . many times asked before on this forum . you will get enough explanations On Mon, May 5, 2014 at 6:38 PM, Tod via gem5-users <gem5-users@gem5.org> wrote: Hi, I am trying to run my gem5 simulations from inside a Java program. The Java program runs a shell script which then issues the command to run the simulation. Here is the console trace: gem5 Simulator System.  http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Nov 28 2013 16:00:37 gem5 started May  5 2014 16:00:17 gem5 executing on xyz command line: ./build/ARM/gem5.fast --outdir=/home/usr/gem5/my_m5out/m5out1 configs/example/fs.py --disk-image=/home/usr/full_system_images/disks/linux-arm-ael1.img --mem-size=256MB -n 4 --script=./configs/boot/hack_back_ckpt.rcS Traceback (most recent call last):   File "<string>", line 1, in <module>   File "/home/user/gem5/src/python/m5/main.py", line 388, in main        File "configs/example/fs.py", line 116, in <module>     bare_metal=options.bare_metal)   File "/home/user/gem5/configs/common/FSConfig.py", line 251, in makeArmSystem     self.cf0.childImage(mdesc.disk())   File "/home/user/gem5/configs/common/Benchmarks.py", line 53, in disk     return disk(self.diskname)   File "/home/user/gem5/configs/common/SysPaths.py", line 37, in disk     system()   File "/home/user/gem5/configs/common/SysPaths.py", line 59, in system     raise ImportError, "Can't find a path to system files." ImportError: Can't find a path to system files. Any help? Best. _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users

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