Hi,
I have solved the problem becasue I added a command into the command
line, which is "--dist-sync-start=1000000000t". However, I can
checkpoint in aarch64-linux.img without this command by dist-gem5. I
have not known why yet. If you guys knows it, please tell it. Thanks a
lot！
On 2018-07-02 09:16 PM, Boyang Xu wrote:
> Hi Ciro,
>
> Thanks for your suggestion. I should have given more details.
>
> The .rcS script I use to take checkpoint is as follow. I downloaded it from
> dist-gem5 official website and did not modify it.
>
>> #!/bin/bash
>> # Authors: Mohammad Alian <mali...@illinois.edu>
>> # boot gem5 and take a checkpoint
>> #
>> # The idea of this script is the same as
>> # "configs/boot/hack_back_ckpt.rcS" by Joel Hestness
>> # Please look into that for more info
>> #
>> source /root/.bashrc
>> # Retrieve dist-gem5 rank and size parameters using the 'm5' utility
>> MY_RANK=$(/sbin/m5 initparam dist-rank)
>> [ $? = 0 ] || { echo "m5 initparam failed"; exit -1; }
>> MY_SIZE=$(/sbin/m5 initparam dist-size)
>> [ $? = 0 ] || { echo "m5 initparam failed"; exit -1; }
>> echo "***** Start boot script! *****"
>> if [ "${RUNSCRIPT_VAR+set}" != set ]
>> then
>> # Signal our future self that it's safe to continue
>> echo "RUNSCRIPT_VAR not set! Setting it ..."
>> export RUNSCRIPT_VAR=1
>> else
>> echo "RUNSCRIPT_VAR is set!"
>> # We've already executed once, so we should exit
>> echo "calling m5 exit ..."
>> /sbin/m5 exit 1
>> fi
>> /bin/hostname node${MY_RANK}
>> # Keep MAC address assignment simple for now ...
>> (($MY_RANK > 97)) && { echo "(E) Rank must be less than 98"; /sbin/m5 abort;
>> }
>> ((MY_ADDR = MY_RANK + 2))
>> if (($MY_ADDR < 10))
>> then
>> MY_ADDR_PADDED=0${MY_ADDR}
>> else
>> MY_ADDR_PADDED=${MY_ADDR}
>> fi
>> /sbin/ifconfig eth0 hw ether 00:90:00:00:00:${MY_ADDR_PADDED}
>> /sbin/ifconfig eth0 192.168.0.${MY_ADDR} netmask 255.255.255.0 up
>> /sbin/ifconfig -a
>> # take a checkpoint
>> if [ "$MY_RANK" == "0" ]
>> then
>> /sbin/m5 checkpoint 1
>> else
>> sleep 0.01
>> fi
>> #THIS IS WHERE EXECUTION BEGINS FROM AFTER RESTORING FROM CKPT
>> if [ "$RUNSCRIPT_VAR" -eq 1 ]
>> then
>> # Signal our future self not to recurse infinitely
>> export RUNSCRIPT_VAR=2
>> # Read the script for the checkpoint restored execution
>> echo "Loading new script..."
>> /sbin/m5 readfile > /tmp/runscript1.sh
>> # Execute the new runscript
>> if [ -s /tmp/runscript1.sh ]
>> then
>> /bin/bash /tmp/runscript1.sh
>> else
>> echo "Script not specified"
>> fi
>> fi
>> echo "Fell through script. Exiting ..."
>> /sbin/m5 exit 1
>
> When I took a checkpoint in "aarch64-ubuntu-trusty-headless.img" by
> dist-gem5, It works. The important part in output file log.0 is as follow.
>
>> warn: Device specific PCI config space not implemented for
>> testsys.realview.ethernet!
>> 26258473387000: global: DistIface::readyToCkpt() called, delay:1 period:0
>> info: m5 checkpoint called with non-zero delay => triggering immediate
>> checkpoint (at the next sync)
>> 26258480000000: global: DistIFace::drain() called
>> 26258480000500: global: DistIFace::drain() called
>> info: Entering event queue @ 26258480000000. Starting simulation...
>> Writing checkpoint
>> 26258480000500: global: DistIFace::drainResume() called
>> info: Entering event queue @ 26258480000500. Starting simulation...
>> 26267427931500: global: DistIface::readyToExit() called, delay:1
>> info: m5 exit called with non-zero delay => triggering immediate exit (at
>> the next sync)
>> Exiting @ tick 26267430000000 because exit request from gem5 peers
>
> However, when I took a checkpoint in "aarch32-ubuntu-natty-headless.img", It
> did not work. The same part in output file log.0 is as follow:
>
>> warn: instruction 'mcr bpiall' unimplemented
>> 3362818440000: global: DistIface::readyToCkpt() called, delay:1 period:0
>> info: m5 checkpoint called with non-zero delay => triggering immediate
>> checkpoint (at the next sync)
>> 3385307368500: global: DistIface::readyToExit() called, delay:1
>> info: m5 exit called with non-zero delay => triggering immediate exit (at
>> the next sync)
>> info: recv(): Connection closed
>> Exiting @ tick 3389177332000 because connection to gem5 peer got closed
>
> You can see there is not the overstriking part of the first log.0 in the
> second log.0.
>
> On 2018-07-01 02:13 AM, Ciro Santilli wrote:
> Just saw the attachments now.
>
> I would recommend in-lining them as much as possible in the email, and
> selecting the most interesting part if they are huge.
>
> This will make it more likely that people will look at them, and allow search
> engines to index them.
>
> On Sun, Jul 1, 2018 at 9:56 AM, Ciro Santilli <ciro.santi...@gmail.com> wrote:
>
> How did you try to take the checkpoint? Manually or with some init script?
>
> How did you try to restore it, and how did it fail.
>
> Did the init actually script run? Add prints or set -x to it.
>
> On Sun, Jul 1, 2018 at 7:45 AM, Boyang Xu <6172...@gmail.com> wrote:
>
> Hi everyone,
>
> I failed to take a checkpoint with aarch32-ubuntu-natty-headless.img by
> dist-gem5, but succeeded to do it with aarch64-ubuntu-trusty-headless.img.
> The input and output files are attached.
>
> My command line is as follow: build/ARM/gem5.opt
> -d m5out.0
> --debug-flags=DistEthernet
> configs/example/fs.py
> --cpu-type=AtomicSimpleCPU --num-cpus=1 --machine-type=VExpress_EMM
> --disk-image=aarch32-ubuntu-natty-headless.img
> --kernel=vmlinux.aarch32.ll_20131205.0-gem5
> --script=boot.easy.ckpt.rcS
> --checkpoint-dir=m5out.0
> --dist --dist-rank=0 --dist-size=2 --dist-server-name=127.0.0.1
> --dist-server-port=2200
>
> Any suggestion and help on taking a checkpoint with linux_32bit.img by
> dist-gem5 is welcomed. Thanks a lot!
>
> Best Regards,
> Boyang Xu
>
> A graduate student in UVIC _______________________________________________
> gem5-users mailing list
> gem5-users@gem5.org
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users [1]
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--
Best Regards,
Boyang Xu
A graduate student in UVIC
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--
Best Regards,
Boyang Xu
A graduate student in UVIC
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