Hi all,

I am a beginner with Gem5. I need to run PARSEC benchmarks on ALPHA. I
followed instructions from the document provided by UT Austin.

In order to follow the document completely, I'm using an older version
of Gem5 (http://repo.gem5.org/gem5/archive/549b72de8f72.tar.bz2) which
supported --detailed flags.
To build the older version, I am using gcc 4.5.3, python 2.4.3 and swig 2.0.2
The ALPHA_FS build was successful.
I am using linux image provided by UT Austin.


When I try to create checkpoint using :

build/ALPHA_FS/gem5.opt configs/example/fs.py -n 3
--script=/home/sdhoble/parsecScripts/bodytrack_3c_simsmall_ckpts.rcS


The terminal output is as follows :

Global frequency set at 1000000000000 ticks per second
info: kernel located at:
/home/sdhoble/fullSystemImages/m5_system_2.0b3/binaries/vmlinux
Listening for system connection on port 3456
      0: system.tsunami.io.rtc: Real-time clock set to Thu Jan  1 00:00:00 2009
0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000
0: system.remote_gdb.listener: listening for remote gdb #1 on port 7001
0: system.remote_gdb.listener: listening for remote gdb #2 on port 7002
**** REAL SIMULATION ****
info: Entering event queue @ 0.  Starting simulation...
info: Launching CPU 1 @ 170102500
info: Launching CPU 2 @ 172013000
warn: Prefetch instructions in Alpha do not do anything
warn: Prefetch instructions in Alpha do not do anything
hack: be nice to actually delete the event here
Exiting @ tick 1871961237500 because m5_exit instruction encountered


The document says that a pseudo-instruction in M5 creates the
checkpoint. But the checkpoint is not created in the directory where
the above command was run.
To confirm this when I tried to run the actual benchmark using :

build/ALPHA_FS/gem5.opt  configs/example/fs.py --detailed --caches
--l2cache --checkpoint-restore=1 -n 3


I get the following output :

command line: build/ALPHA_FS/gem5.opt configs/example/fs.py --detailed
--caches --l2cache --checkpoint-restore=1 -n 3
fatal: Checkpoint 1 not found


Any help would be appreciated.

Thanks,
Sumit
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