Re: [Gems-users] MESI_SCMP_ protocol crush

["Mike Marty" <mike.marty@xxxxxxxxx>]

I have no idea why that assertion would be triggered.  I would print
out the machineID and requestor. See the wiki for generating a
protocol debug trace.  Grep on the block address that causes the
assertion.  Add extra debuggin information to the trace using
APPEND_TRANSITION_COMMENT and DEBUG_EXPR.

--Mike


On Sun, Mar 30, 2008 at 3:27 PM, Konstantinos Aisopos
<kaisopos@xxxxxxxxx> wrote:
> Hello again,
>
>  any ideas about my problem? any idea what this assertion prevents from
>  happening? Should I provide you more information? Does the MESI_SCMP
>  require any other parameters to be set that I don't know??
>
>  I thought it was a topology problem so I created the file:
>  ruby/network/simple/Network_Files/NUCA_Procs-64_ProcsPerChip-64_L2Banks-64_Memories-64.txt
>  and set these parameters:
>  ruby0.setparam_str g_CACHE_DESIGN NUCA
>  ruby0.setparam_str g_NETWORK_TOPOLOGY FILE_SPECIFIED
>  ... the problem still persists. I got rid of opal to make the
>  simulation simpler. problem persists. Also, if i don't load ruby the
>  simulation works fine.
>
>  help please :P
>
>  -Kostas
>
>
>
>
>  On Thu, Mar 27, 2008 at 10:54 PM, Konstantinos Aisopos
>  <kaisopos@xxxxxxxxx> wrote:
>  > Hi list,
>  >
>  > I am using MESI_SCMP_bankdirectory protocol to simulate a 64core
>  > system. I haven't touched the protocol or the simulator. I am
>  > executing the following script:
>  >
>  > instruction-fetch-mode instruction-fetch-trace
>  > istc-disable
>  > dstc-disable
>  > cpu-switch-time 1
>  > load-module ruby
>  > load-module opal
>  > ruby0.setparam g_NUM_PROCESSORS 64
>  > ruby0.setparam g_PROCS_PER_CHIP 64
>  > ruby0.setparam g_NUM_L2_BANKS 64
>  > ruby0.setparam g_NUM_MEMORIES 64
>  > ruby0.setparam NUMBER_OF_VIRTUAL_NETWORKS 5
>  > ruby0.setparam g_MEMORY_SIZE_BYTES 4294967296
>  > ruby0.setparam g_endpoint_bandwidth 1000
>  > ruby0.init
>  > opal0.init
>  > opal0.sim-start "results.opal"
>  > opal0.sim-step 10000000000
>  >
>  > and i am getting the following error, when i execute "opal0.sim-step
>  > 10000000000":
>  >
>  > Runtime Error at ../protocols/MESI_SCMP_bankdirectory-L2cache.sm:224,
>  > Ruby Time: 23: assert failure, PID: 1335
>  >
>  > the 224 line is:
>  > assert(map_L1CacheMachId_to_L2Cache(addr,requestor) == machineID)
>  >
>  > any idea what might be wrong?
>  >
>  > thanks,
>  >
>  > Kostas
>  >
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