Re: [Gems-users] Garnet startup

[Niket Agarwal <niketa@xxxxxxxxxxxxx>]

If the Network topology is FILE_SPECIFIED, the file that is looked up is <g_CACHE_DESIGN>_Procs-<>_ProcsPerChip-<>_L2Banks-<>_Memories-<>.txt

So, your file should be correctly looked up. What you did, also seems to be enough for the network setup. 

One thing you might want to ensure is that the tester.defaults is not overwriting these parameters in rubyconfig.defaults.

Not sure why the parameters are not being set. Did you make any other changes to the vanilla gems-2.1 checkout? 

-Niket

2009/7/8 harry y <yh_0116@xxxxxxxxxxx>

Hi Gems guys,
I am attempting to build a simple 2x2 mesh network using Garnet, but kind of lost in the process. Could anyone give guidance on my procedure below?
 
1. I build a MSI_MOSI_CMP_directory protocol.
2. And in rubyconfig.defaults I set the following parameters
 
g_NUM_PROCESSORS: 4
g_NUM_L2_BANKS: 4
g_NUM_MEMORIES: 1
g_PROCS_PER_CHIP: 1
 
and garnet related following the GEMS wiki
 
g_NETWORK_TOPOLOGY: FILE_SPECIFIED
g_GARNET_NETWORK: true
g_DETAIL_NETWORK: true
g_NETWORK_TESTING: false
g_FLIT_SIZE: 16
g_VCS_PER_CLASS: 1
g_BUFFER_SIZE: 4
g_CACHE_DESIGN: MESH
recompiled ruby.
 
3. Then I use the NetworkFileMaker.py at $GEMS/ruby/network/simple/Network_Files to generated a topology file named "MESH_Procs-4_ProcsPerChip-1_L2Banks-4_Memories-1.txt"
I am not sure whether those are enough to create a network. Several doubts are:

1. Which file is the FILE_SPECIFIED pointed to? Should it be the one generated above? How does it recognize it?
2. How should I quickly test the network? Should I follow the gen-script.py and build workload to test it? Actually I run the generated tester.exec, but it give the following error:
 
============================================================================
[harry@lnx7 bin]$ ./tester.exec
error: in fn int confio_t::applyConfiguration(attr_value_t*) in ../common/ioutil/confio.C:472: error: "g_GARNET_NETWORK" not found. unable to set value.
error: in fn int confio_t::applyConfiguration(attr_value_t*) in ../common/ioutil/confio.C:472: error: "g_DETAIL_NETWORK" not found. unable to set value.
error: in fn int confio_t::applyConfiguration(attr_value_t*) in ../common/ioutil/confio.C:472: error: "g_NETWORK_TESTING" not found. unable to set value.
error: in fn int confio_t::applyConfiguration(attr_value_t*) in ../common/ioutil/confio.C:472: error: "g_FLIT_SIZE" not found. unable to set value.
error: in fn int confio_t::applyConfiguration(attr_value_t*) in ../common/ioutil/confio.C:472: error: "g_VCS_PER_CLASS" not found. unable to set value.
error: in fn int confio_t::applyConfiguration(attr_value_t*) in ../common/ioutil/confio.C:472: erro! r: "g_BUFFER_SIZE" not found. unable to set value.
============================================================================
Does it mean Garnet is not properly configured?

Since I am new to GEMS, any guidance is highly appreciated. Thanks!

Best Regards,
Harry
 
 

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