The following steps may help:
1. In cold simics script, you do not need to execute instruction-fetch-mode,
instruction-fetch-trace, istc-disable, dstc-disable commands because you are
not loading ruby.
2. In warm simics script, you should execute above commands because now you
want to load ruby. Also make sure that you start simics with the -stall
flag.
3. In microbench.start_ruby, make sure that it loads the ruby module, sets
memory and cache parameters correctly and executes ruby0.init.
----- Original Message -----
From: "ruzhu kao" <kaoruzhu@xxxxxxxxx>
To: "Gems Users" <gems-users@xxxxxxxxxxx>
Sent: Monday, October 26, 2009 9:44 PM
Subject: [Gems-users] Please help to check my scripts for cache warming up
Hi all:
I have read the relating topics in ISCA-tutorial and this list. I
assume it needs three steps and then I write these scripts for cold,
warm and run respectively. However, it seems that I should miss some
points which lead to some failure. The warm and run steps take a long
time and show strange behavior. Can you help to check my scripts and
point out the problem.
#***************below is the cold simics script******************#
@import microbench, workloads, mfacet
@processors = 16
@ruby_proc_map = (1, 2, 2, 4, 4, 8, 8, 8, 8, 16, 16, 16, 16, 16, 16, 16,
16)
@if(processors <= 16):
ruby_procs = ruby_proc_map[processors]
proc_no = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
elif (processors <= 32):
ruby_procs = 32
proc_no = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47]
else:
processors = -1
@transactions = 1
@dump_interval = 1
@print "running simics with %d processors" % ruby_procs
#############################################
# Load a clean checkpoint #
#############################################
@mfacet.run_sim_command('read-configuration
"../../../checkpoints/conf_files/2G_16p/step_2.conf"')
@mfacet.run_sim_command('magic-break-enable')
@sys.path.append("../../gen-scripts")
@hostpath = "/host" + os.getcwd() +
"/../../../microbenchmarks/transactional/stamp/ssca2/"
@command_lines = [
"bash\n",
"cp " + hostpath + "ssca2" + " ./\n",
"export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib\n",
"export PATH=$PATH:/usr/local/bin\n",
"./ssca2 -s13 -i1.0 -u1.0 -l3 -p3 -t16\n" ]
@mfacet.console_commands(command_lines,"#")
############################################################################
# Copy the binary and execute it in vm till the first magic breakpoint
#
############################################################################
@mfacet.run_sim_command('instruction-fetch-mode instruction-fetch-trace')
@mfacet.run_sim_command('istc-disable')
@mfacet.run_sim_command('dstc-disable')
@mfacet.run_sim_command('cpu-switch-time 1')
@mfacet.run_sim_command('c')
@print "encounter the first magic breakpoint"
######################################################################
# Continue the executing because it is just for a cold checkpoint #
######################################################################
@mfacet.setup_run_for_n_transactions(transactions, dump_interval)
@print "running ssca2 on simics + ruby with %d transactions" %
transactions
@mfacet.run_sim_command('c')
@print "encounter the second magic breakpoint"
#############################################################
# Execute till the third breakpoint #
#############################################################
@mfacet.run_sim_command('c')
@print "encounter the third magic breakpoint"
##############################################################
# Save a cold checkpoint [App]-cold-[clean-checkpoint].conf #
##############################################################
@mfacet.run_sim_command('write-configuration
"../../../checkpoints/conf_files/2G_16p/ssca2-cold-step_2.conf"')
quit
#-----------------
#***************above is the cold simics script******************#
-------------------------------------------------------------------------------------------------------
#***************below is the warm simics script******************#
@import microbench, workloads, mfacet
@env_dict = workloads.prepare_env_dictionary(simics = 1)
@processors = 16
@ruby_proc_map = (1, 2, 2, 4, 4, 8, 8, 8, 8, 16, 16, 16, 16, 16, 16, 16,
16)
@if(processors <= 16):
ruby_procs = ruby_proc_map[processors]
proc_no = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
elif (processors <= 32):
ruby_procs = 32
proc_no = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47]
else:
processors = -1
@print "running simics with %d processors" % ruby_procs
@lock_type = 'TM'
@transactions = 1
@dump_interval = 1
@env_dict = workloads.prepare_env_dictionary(simics = 1)
@visualizer = 0
#############################################
# Load the cold checkpoint #
#############################################
@mfacet.run_sim_command('read-configuration
"../../../checkpoints/conf_files/2G_16p/ssca2-cold-step_2.conf"')
@mfacet.run_sim_command('magic-break-enable')
@sys.path.append("../../gen-scripts")
@hostpath = "/host" + os.getcwd() +
"/../../../microbenchmarks/transactional/stamp/ssca2/"
@command_lines = [
"bash\n",
"cp " + hostpath + "ssca2" + " ./\n",
"export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib\n",
"export PATH=$PATH:/usr/local/bin\n",
"psrset -i\n",
"./ssca2 -s13 -i1.0 -u1.0 -l3 -p3 -t16\n" ]
@mfacet.console_commands(command_lines,"#")
############################################################################
# Copy the binary and execute it in vm till the first magic breakpoint
#
############################################################################
@mfacet.run_sim_command('c')
@print "encounter the first magic breakpoint"
#################################################
# Configure simics and load ruby #
#################################################
@microbench.start_ruby(debug=0)
######################################################################
# Warmup the cache to run the parallel part of the application #
######################################################################
@mfacet.setup_run_for_n_transactions(transactions, dump_interval)
@print "running ssca2 on simics + ruby with %d transactions" %
transactions
@mfacet.run_sim_command('c')
@print "encounter the second magic breakpoint"
#########################################
# Save the cache file #
#########################################
@cache_filename_prefix = os.getcwd() +
"/../../../microbenchmarks/transactional/stamp/ssca2/" + "ssca2-warm"
@mfacet.run_sim_command('ruby0.save-caches %s.cache.save' %
cache_filename_prefix)
@filename_prefix = os.getcwd() +
"/../../../microbenchmarks/transactional/stamp/ssca2/" +
"ssca2-warm-dump"
@if visualizer == 1:
mfacet.run_sim_command('ruby0.xact-visualizer-file %s.visual' %
filename_prefix)
@mfacet.run_sim_command('ruby0.dump-stats %s.stats' % filename_prefix)
##############################################################
# Save a warm checkpoint [App]-warm-[clean-checkpoint].conf #
##############################################################
@mfacet.run_sim_command('write-configuration
"../../../checkpoints/conf_files/2G_16p/ssca2-warm-step_2.conf"')
quit
#-----------------
#***************above is the warm simics script******************#
---------------------------------------------------------------------------------------------------
#***************below is the run simics script******************#
@import microbench, workloads, mfacet
@env_dict = workloads.prepare_env_dictionary(simics = 1)
#@processors = int(workloads.get_var(env_dict, "PROCESSORS"))
@processors = 16
# 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
@ruby_proc_map = (1, 2, 2, 4, 4, 8, 8, 8, 8, 16, 16, 16, 16, 16, 16, 16,
16)
@if(processors <= 16):
ruby_procs = ruby_proc_map[processors]
proc_no = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
elif (processors <= 32):
ruby_procs = 32
proc_no = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47]
else:
processors = -1
@print "running simics with %d processors" % ruby_procs
@lock_type = 'TM'
@transactions = 1
@dump_interval = 1
@env_dict = workloads.prepare_env_dictionary(simics = 1)
@visualizer = 0
@mfacet.run_sim_command('read-configuration
"../../../checkpoints/conf_files/2G_16p/ssca2-warm-step_2.conf"')
@mfacet.run_sim_command('magic-break-enable')
@sys.path.append("../../gen-scripts")
@hostpath = "/host" + os.getcwd() +
"/../../../microbenchmarks/transactional/stamp/ssca2/"
@command_lines = [
"bash\n",
"cp " + hostpath + "ssca2" + " ./\n",
"export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib\n",
"export PATH=$PATH:/usr/local/bin\n",
"psrset -i\n",
"./ssca2 -s13 -i1.0 -u1.0 -l3 -p3 -t16\n" ]
@mfacet.console_commands(command_lines,"#")
@mfacet.run_sim_command('c')
@print "first magic break point"
@microbench.start_ruby(debug=0)
###############################
# Load cache data #
###############################
@warmed_cache_file = os.getcwd() +
"/../../../microbenchmarks/transactional/stamp/ssca2/" +
"ssca2-warm.cache.save"
@mfacet.run_sim_command('ruby0.load-caches %s' % warmed_cache_file)
@mfacet.run_sim_command('ruby0.clear-stats')
@mfacet.setup_run_for_n_transactions(transactions, dump_interval)
@print "running ssca2 on simics + ruby with %d transactions" %
transactions
@mfacet.run_sim_command('c')
@print "second magic break point"
@filename_prefix = os.getcwd() +
"/../../../microbenchmarks/transactional/stamp/ssca2/" +
"ssca2-warmed-result"
@if visualizer == 1:
mfacet.run_sim_command('ruby0.xact-visualizer-file %s.visual' %
filename_prefix)
@mfacet.run_sim_command('ruby0.dump-stats %s.stats' % filename_prefix)
quit
#-----------------
#***************above is the run simics script******************#
-----------------------------------------------------------------------------------------------------
When I use run simics scripts load step_2.conf, the stats file
generated shows counters work well like this.
XACT CYCLE BREAKDOWN
XACT_BREAKDOWN_NON_TRANS_CYCLES: 48557592
XACT_BREAKDOWN_TRANS_CYCLES: 3398260
XACT_BREAKDOWN_GOOD_TRANS_CYCLES: 3357808
XACT_BREAKDOWN_ABORTING_CYCLES: 89996
XACT_BREAKDOWN_COMMITING_CYCLES: 0
XACT_BREAKDOWN_BACKOFF_CYCLES: 5051407
XACT_BREAKDOWN_BARRIER_CYCLES: 22622226
XACT_BREAKDOWN_STALL_CYCLES: 110658
However, when I check the stats file from warm scripts, these counters
look strange like this:
XACT CYCLE BREAKDOWN
XACT_BREAKDOWN_NON_TRANS_CYCLES: 122136
XACT_BREAKDOWN_TRANS_CYCLES: 0
XACT_BREAKDOWN_GOOD_TRANS_CYCLES: 0
XACT_BREAKDOWN_ABORTING_CYCLES: 0
XACT_BREAKDOWN_COMMITING_CYCLES: 0
XACT_BREAKDOWN_BACKOFF_CYCLES: 0
XACT_BREAKDOWN_BARRIER_CYCLES: 672
XACT_BREAKDOWN_STALL_CYCLES: 0
Any suggestions would be welcomed.
Thanks in advance.
Sincerely yours:
Ruzhu
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