Hi Tushar,
Please find my .py file attached.
Also, here's the command line I am using:
./build/ALPHA_SE/gem5.opt configs/example/ruby_network_test.py --num-cpus=8
--num-dirs=1 --topology=MeshDir_ --sim-cycles=1000 --injectionrate=0.01
--synthetic=0 --fixed-pkts --maxpackets=1 --garnet-network=fixed
Please let me know if I am missing something here.
On Mon, Nov 28, 2011 at 6:52 PM, Tushar Krishna <[email protected]>wrote:
> Can you send me your file and your command line. Might be faster.
>
> Tushar
>
> On Nov 28, 2011, at 8:29 PM, tejasi pimpalkhute <[email protected]>
> wrote:
>
> Hi Tushar,
>
> No, there was no build error but I got the following error:
>
> File "<string>", line 1, in <module>
> File "/home/tejasi/Music/Gem5/gem5-c226cd1e5e5e/src/python/m5/main.py",
> line 356, in main
> exec filecode in scope
> File "configs/example/ruby_network_test.py", line 108, in <module>
> Ruby.create_system(options, system)
> File "/home/tejasi/Music/Gem5/gem5-c226cd1e5e5e/configs/ruby/Ruby.py",
> line 109, in create_system
> % options.topology)
> File "<string>", line 1, in <module>
> File
> "/home/tejasi/Music/Gem5/gem5-c226cd1e5e5e/src/mem/ruby/network/topologies/MeshDirCorners.py",
> line 65, in makeTopology
> assert(remainder == 0)
> AssertionError
>
> I am not getting what is the remainder value coming out to be because I
> just changed the num_dirs and its connections. Could you please help me out
> with this? I really appreciate your prompt replies.
>
> On Sat, Nov 26, 2011 at 11:41 PM, Tushar Krishna < <[email protected]>
> [email protected]> wrote:
>
>> Hmm ... I just tried your change and it seems to work fine (except for
>> a complaint about num_routers/2)
>> There was no error when you build it after your change right?
>>
>> Try to print the value of len(dir_nodes) in the topology file to help
>> debug ...
>>
>> - Tushar
>>
>>
>>
>> On 11/26/2011 10:44 PM, tejasi pimpalkhute wrote:
>>
>> HI Tushar,
>>
>> I ran the following command:
>>
>> ./build/ALPHA_SE/gem5.opt configs/example/ruby_network_test.py
>> --num-cpus=8 --num-dirs=1 --topology=MeshDirCorners --sim-cycles=1000
>> --injectionrate=0.01 --synthetic=0 --fixed-pkts --maxpackets=1
>> --garnet-network=fixed
>>
>> On Sat, Nov 26, 2011 at 8:33 PM, Tushar Krishna < <[email protected]>
>> [email protected]> wrote:
>>
>>> Hi Tejasi,
>>> The assertion for number of directories being 1 failed.
>>>
>>> The node type is being set in line 52:
>>> elif node.type == 'Directory_Controller':
>>> dir_nodes.append(node)
>>>
>>> Are you sure you specified --num-dirs=1 in the command line when you ran
>>> it?
>>>
>>> - Tushar
>>>
>>>
>>>
>>> On 11/26/2011 10:06 PM, tejasi pimpalkhute wrote:
>>>
>>> Hi Tushar,
>>>
>>> I am trying to create a different topology, similar to mesh but it
>>> only has 1 director controller node which will be connected to center node.
>>> For this, I am modifying the MeshDirCorners.py file
>>>
>>> line 66 --
>>> assert(len(dir_nodes) == 1) // changed from 4 to 1
>>>
>>> and line 85
>>> # Connect the dir nodes to the corners.
>>> ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[0],
>>> int_node=mesh.routers[num_routers/2]))
>>> link_count += 1
>>>
>>> but, I get the following error:
>>>
>>> Error: could not create topology MeshDirCorners
>>> Traceback (most recent call last):
>>> File "<string>", line 1, in <module>
>>> File "/home/tejasi/Gem5/gem5-c226cd1e5e5e/src/python/m5/main.py", line
>>> 356, in main
>>> exec filecode in scope
>>> File "configs/example/ruby_network_test.py", line 108, in <module>
>>> Ruby.create_system(options, system)
>>> File "/home/tejasi/Gem5/gem5-c226cd1e5e5e/configs/ruby/Ruby.py", line
>>> 109, in create_system
>>> % options.topology)
>>> File "<string>", line 1, in <module>
>>> File
>>> "/home/tejasi/Gem5/gem5-c226cd1e5e5e/src/mem/ruby/network/topologies/MeshDirCorners.py",
>>> line 66, in makeTopology
>>> assert(len(dir_nodes) == 1)
>>> AssertionError
>>>
>>> I am not sure why is this error? Also, how does it know the node type in
>>> line 48? Could you please guide me on this?
>>>
>>>
>>>
>>>
>>> On Sat, Nov 19, 2011 at 11:52 PM, Tushar Krishna <<[email protected]>
>>> [email protected]> wrote:
>>>
>>>> Hi Tejasi,
>>>> All routers are identical. Each router connects either to another
>>>> router, and to one or more controllers. In a mesh topology, router 0
>>>> connects to two neighboring routers (to its east and north), an L1
>>>> controller, a directory/memory controller and a DMA controller.
>>>> No a DMA controller is not same as a memory controller.
>>>> src/mem/ruby/system defines some of the controllers while some are
>>>> generated per protocol.
>>>>
>>>> Hmm all routers inherit from the same base class BasicRouter so are
>>>> identical ... You could add different functionality for some of the routers
>>>> by using the router's m_id as a conditional ... ?
>>>>
>>>> Routing Table entries:
>>>> Look at src/mem/ruby/network/Topology.cc
>>>> The createLinks function calculates shortest distance between nodes and
>>>> passes this information to makeLinks which in turn calls the makeInLink,
>>>> makeOutLink and makeInternalLink functions in GarnetNetwork_d.cc which then
>>>> calls each router and populates its routing tables.
>>>>
>>>> cheers,
>>>> Tushar
>>>>
>>>>
>>>>
>>>> On 11/19/2011 10:21 PM, tejasi pimpalkhute wrote:
>>>>
>>>> Hi Tushar,
>>>>
>>>> Thanks for your reply. Can you please tell me if router[0] which is
>>>> connected to DMA_controller(is this same as memory controller?), has any
>>>> different structure or functionality than other routers? If yes, could you
>>>> please let me know which file has the code for this? If no, could you
>>>> please let me know if we can implement a different functionality for just
>>>> one router?
>>>> Also, regarding routing destinations, can you please tell me where does
>>>> the routing_table_entry variable in routing_unit.cc gets its value from?
>>>> I am unable to figure these things out by looking at the code and hence
>>>> stuck at one point.
>>>> Hope to hear from you soon.
>>>>
>>>> On Thu, Oct 27, 2011 at 9:11 PM, Tushar Krishna <<[email protected]>
>>>> [email protected]> wrote:
>>>>
>>>>> Hi Tejasi,
>>>>>
>>>>> In general there is *no fixed rule* for these, and depends on the
>>>>> coherence protocol.
>>>>> For most protocols currently in gem5, each "Directory" Controller
>>>>> implies both a Directory (i.e. state) and a Memory Controller.
>>>>> The memory controller models the delay to main memory. We don't define
>>>>> and connect a memory module separately as far as I know.
>>>>> The number of directories is an independent parameter defined from
>>>>> command line (--num-dirs).
>>>>>
>>>>> If you take a look at configs/ruby/MOESI_CMP_directory.py,
>>>>> you can see that it creates L1 controllers, L2 controllers and
>>>>> Directory Controllers (in which it creates both a DirectoryMemory =>
>>>>> state,
>>>>> and a memory controller).
>>>>> Now when the directory receives a request that is not currently
>>>>> on-chip (indicated by directory state), it sends the request to the memory
>>>>> controller which models memory delay for reads/writes etc ... [done in the
>>>>> protocol's .sm file].
>>>>>
>>>>> In terms of connections, all controllers (L1, L2 and Directory) can be
>>>>> connected in any manner.
>>>>> We provide two mesh topologies: Mesh.py and MeshDirCorners.py.
>>>>> Both topologies create a Mesh with the number of routers = number of
>>>>> cpus (=number of L1s).
>>>>> Mesh.py assumes equal number of all controllers (L1, L2 and
>>>>> directory), and connects one L1, one L2 (if it exists) and one directory
>>>>> to
>>>>> each network router.
>>>>> MeshDirCorners.py assumes 4 directories and connects them at each
>>>>> corner.
>>>>> All DMA controllers are just connected to router 0 (arbitrary
>>>>> decision) I think.
>>>>>
>>>>> You can design your own topology too using the given ones as
>>>>> reference.
>>>>> You just need to add a .py file of your topology in the topologies
>>>>> folder, and also add it in
>>>>> src/mem/ruby/network/topologies/SConscript
>>>>>
>>>>> Hope this helps,
>>>>> Tushar
>>>>>
>>>>>
>>>>>
>>>>> On 10/27/2011 4:09 PM, tejasi pimpalkhute wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> I was looking into the code file Mesh.py in Topology folder and the
>>>>> online documentation for it says that every node has L1,L2 cache and
>>>>> directories connected to it. As I had read somewhere, in Gem5, directory
>>>>> controller and memory controller are same, could you please let me know if
>>>>> Directory connected to each node is same as main memory? Also, it seems
>>>>> that DMA controller is attached to only remainder nodes as per the code.
>>>>> So, it is a little bit confusing. Could you please elaborate the
>>>>> connections of nodes to memory controller and main memory.
>>>>>
>>>>> Thanks!
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> gem5-users mailing list <[email protected]>[email protected]
>>>>> <http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users>http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> gem5-users mailing list
>>>>> <[email protected]>[email protected]
>>>>> <http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users>
>>>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Thanks and Regards,
>>>> Tejasi
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> gem5-users mailing list <[email protected]>[email protected]
>>>> <http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users>http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>>
>>>>
>>>> _______________________________________________
>>>> gem5-users mailing list
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>>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>>
>>>
>>>
>>>
>>> --
>>> Thanks and Regards,
>>> Tejasi
>>>
>>>
>>>
>>> _______________________________________________
>>> gem5-users mailing list <[email protected]>[email protected]
>>> <http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users>http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>
>>>
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>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>>
>>
>>
>>
>> --
>> Thanks and Regards,
>> Tejasi
>>
>>
>>
>> _______________________________________________
>> gem5-users mailing list <[email protected]>[email protected]
>> <http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users>http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>
>>
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>>
>
>
>
> --
> Thanks and Regards,
> Tejasi
>
> _______________________________________________
> gem5-users mailing list
> [email protected]
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>
>
> _______________________________________________
> gem5-users mailing list
> [email protected]
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>
--
Thanks and Regards,
Tejasi
# Copyright (c) 2010 Advanced Micro Devices, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Brad Beckmann
from m5.params import *
from m5.objects import *
class MeshDirCorners(Topology):
description='MeshDirCorners'
# This file contains a special network creation function. This
# networks is not general and will only work with specific system
# configurations. The network specified is similar to GEMS old file
# specified network.
def makeTopology(nodes, options, IntLink, ExtLink, Router):
num_routers = options.num_cpus
num_rows = options.mesh_rows
# First determine which nodes are cache cntrls vs. dirs vs. dma
cache_nodes = []
dir_nodes = []
dma_nodes = []
for node in nodes:
if node.type == 'L1Cache_Controller' or \
node.type == 'L2Cache_Controller':
cache_nodes.append(node)
elif node.type == 'Directory_Controller':
dir_nodes.append(node)
elif node.type == 'DMA_Controller':
dma_nodes.append(node)
# Obviously the number or rows must be <= the number of routers
# and evenly divisible. Also the number of caches must be a
# multiple of the number of routers and the number of directories
# must be four.
assert(num_rows <= num_routers)
num_columns = int(num_routers / num_rows)
assert(num_columns * num_rows == num_routers)
caches_per_router, remainder = divmod(len(cache_nodes), num_routers)
assert(remainder == 0)
assert(len(dir_nodes) == 1)
mesh = MeshDirCorners()
# Create the routers in the mesh
mesh.routers = [Router(router_id=i) for i in range(num_routers)]
# link counter to set unique link ids
link_count = 0
# Connect each cache controller to the appropriate router
ext_links = []
for (i, n) in enumerate(cache_nodes):
cntrl_level, router_id = divmod(i, num_routers)
assert(cntrl_level < caches_per_router)
ext_links.append(ExtLink(link_id=link_count, ext_node=n,
int_node=mesh.routers[router_id]))
link_count += 1
# Connect the dir nodes to the corners.
ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[0],
int_node=mesh.routers[0]))
link_count += 1
# ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[1],
# int_node=mesh.routers[num_columns - 1]))
# link_count += 1
# ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[2],
# int_node=mesh.routers[num_routers - num_columns]))
# link_count += 1
# ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[3],
# int_node=mesh.routers[num_routers - 1]))
# link_count += 1
# Connect the dma nodes to router 0. These should only be DMA nodes.
for (i, node) in enumerate(dma_nodes):
assert(node.type == 'DMA_Controller')
ext_links.append(ExtLink(link_id=link_count, ext_node=node, int_node=mesh.routers[0]))
# Create the mesh links. First row (east-west) links then column
# (north-south) links
int_links = []
for row in xrange(num_rows):
for col in xrange(num_columns):
if (col + 1 < num_columns):
east_id = col + (row * num_columns)
west_id = (col + 1) + (row * num_columns)
int_links.append(IntLink(link_id=link_count,
node_a=mesh.routers[east_id],
node_b=mesh.routers[west_id],
weight=1))
link_count += 1
for col in xrange(num_columns):
for row in xrange(num_rows):
if (row + 1 < num_rows):
north_id = col + (row * num_columns)
south_id = col + ((row + 1) * num_columns)
int_links.append(IntLink(link_id=link_count,
node_a=mesh.routers[north_id],
node_b=mesh.routers[south_id],
weight=2))
link_count += 1
mesh.ext_links = ext_links
mesh.int_links = int_links
return mesh
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