Re: [Gems-users] GARNET TOOL

[Niket <niketa@xxxxxxxxxxxxx>]

The g_endpoint_bandwidth was used in the earlier "simple" network. If you are using Garnet, it is redundant. Please remove it from your topology file and it should work fine.

-Niket

hb166307@xxxxxxxx wrote:

I think I can explain my problem a little better now. 

In rubyconfig.defaults, I have:
g_endpoint_bandwidth: 10000
g_PROCS_PER_CHIP: 1
g_NUM_PROCESSORS: 1
g_NUM_L2_BANKS: 1
g_NUM_MEMORIES: 1
g_PRINT_TOPOLOGY: true
g_NETWORK_TOPOLOGY: FILE_SPECIFIED
g_CACHE_DESIGN : NUCA

I build the ruby module for MOESI_CMP_token and enter this directory

~/GEMS/simics/targets/MOESI_CMP_token$ ./simics -stall

simics> read-configuration Checkpoints/ftt-bench.check

[A python script runs these command which is in the same directory]

run_command('instruction-fetch-mode instruction-fetch-trace')
run_command('istc-disable')
run_command('dstc-disable')
run_command('stc-status')
run_command('cpu-switch-time 1')
run_command('load-module ruby')
run_command('ruby0.init')
run_command('continue') 

-------------------------------------------------------------------------------
SIMICS OUTPUT

[cpu0 info] Note that on this cpu, instruction-fetch-trace is implemented using
instruction-cache-access-trace with a suitable cache line size.
Turning I-STC off and flushing old data
Turning D-STC off and flushing old data
D-STC is currently *OFF*
I-STC is currently *OFF*
The switch time will change to 1 cycles (for CPU-0) once all processors have
synchronized.
successful installation of the ruby timing model.
Ruby Timing Mode
Creating event queue...
Creating event queue done
Creating system...
  Processors: 1

[This is a cout statement in Topoogy.C to see file name created]
Filename:
../../../ruby/network/simple/Network_Files/NUCA_Procs-1_ProcsPerChip-1_L2Banks-1_Memories-1.txt

failed assertion 'atoi((string_split(varStr, ':')).c_str()) ==
g_endpoint_bandwidth' at fn void Topology::makeFileSpecified() in
network/simple/Topology.C:540
failed assertion 'atoi((string_split(varStr, ':')).c_str()) ==
g_endpoint_bandwidth' at fn void Topology::makeFileSpecified() in
network/simple/Topology.C:540
At this point you might want to attach a debug to the running and get to the
crash site; otherwise press enter to continue
PID: 8421
-------------------------------------------------------------------------------

>From this error, I can not tell where g_endpoint_bandwith is coming from in
Topology.C, which might be why I am getting an assertion error, but I could be
wrong. There was NUCA_Procs-1_ProcsPerChip-1_L2Banks-1_Memories-1.txt in the
Network_Files Folder that was allready in there and when I remove the line
corresponding to 

bw_unit: ####

It no longer gives me the error. What effect is this going to have? Sorry for
not being clearer with my problem....

Quoting "Niket Agarwal (niketa@xxxxxxxxxxxxx)" <niketa@xxxxxxxxxxxxx>:

  

In the GEMS setup you can specify (either in the rubyconfig.defaults
or while running) that you want to use the FILE_SPECIFIED topology
type and the NUCA cache design with a particular number of
processors, processors per chip, L2 banks and Memory banks. The
topology file name is automatically calculated from that. 

You do not have to worry about the file name and folder. 

Niket

----- Original Message -----
From: hb166307@xxxxxxxx
Date: Monday, September 29, 2008 11:14 am
Subject: Re: [Gems-users] GARNET TOOL
To: Gems Users <gems-users@xxxxxxxxxxx>

    

>From what I understand the network description file I want to use
      

should be in
GEMS/ruby/network/simple/Network_Files, but where to I specify the
      

file name
with the of the file name in that folder that I want to use. I 
assume it would
be in the rubyconfig.defaults file. I could be wrong ...

Quoting Niket <niketa@xxxxxxxxxxxxx>:

      

Yes, you have to specify the topology in the 
GEMS/ruby/network/simple/Network_Files

You should name your file to be consistent with the number of L1,
        

L2,> 
      

Memory, etc. Look at other sample files provided in the same
        

folder.
    

The ruby dump will have more network results like, average 
        

network 
      

latency, link utilization, etc.

Cheers,
Niket

hb166307@xxxxxxxx wrote:
        

Dear Users,

I seem to missing the point when it comes to specifying a
          

network
    

file for the
        

Garnet tool. I have set the following

g_GARNET_NETWORK true
g_DETAIL_NETWORK true
g_NETWORK_TOPOLOGY: FILE_SPECIFIED

but am not sure where to you tell ruby to used a NETWORK_FILE
          

from
    

what I
        

assuming will be one of the files in the
          

GEMS/ruby/network/simple/Network_Files
        

directory. When I get some help with this, does anyone know if
          

a
    

ruby stats dump
        

will have more network metric type information printed.

Thanks in advance!
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