platformlab / homasimulation Goto Github PK

Hi behnamm,

I am currently trying to add my own workload and permutation traffic matrix in the simulator. Can you give some info about where I should add it.

Thank you!:)

Qizhe

What is the expected duration of a simulation for the workload?

I am running WorkloadHadoop using the command mentioned in the README:
../homatransport -u Cmdenv -c WorkloadHadoop -r 6 -n ..:../../simulations:../../../inet/examples:../../../inet/src -l ../../../inet/src/INET homaTransportConfig.ini

It has been running for 25 mins and still says 0% completed.

Is there a way to make the simulation run faster?

Hi,

We want to replicate the results of workload W5 in Figure 12 in paper (https://arxiv.org/abs/1803.09615) to sanity check if we use Homa simulator properly. As the figures also shows the results of comparison with NDP, we noticed that the modification of NDP code is not in the open sourced code. Could you please also release the modified code and configurations that you use for NDP simulator and help us replicate the results? Thanks a lot!

Hi @behnamm!

Can you please help me with running a scenario of Homa while multiple senders are sending messages to a single machine simultaneously? Based on figure 10 in the Homa paper, I believe you did such a simulation but I was not able to find it. Many thanks in advance!

Current README is good, but following enhancements are recommended :-

1. • Instructions on folder directory structure
2. • Command to start the default topology
3. • Default topo explanation
4. • Instructions on how to apply the diff patch ( is directory omnetpp part of git ? if not how to apply git diff to it? )

Hi behnamm.I read your paper and I wonder some details of Homa.
How to organize scheduled and unscheduled buffer in TOR? Is TOR a output-buffered router?
I think TOR must not be a input-buffered router. If so, only one Flit will output though output port each cycle, and the Flit couldn't be buffered because it will arrive Receiver and been retired immediately.

Hi, I have run simulation as you suggested in the ReadMe file in commandline, its been more than 20 hours and its still showing 0%. Does this depend on hard ware? I am running in virtualbox ubuntu. I am assuming that when this simulation will complete then I will be able to use result files to produce the graphs presented in the paper. Please comment.

Hi,

I am unable to build Homa, getting following error. Can you please look into it and respond?

common/GlobalSignalListener.cc: In member function 'void GlobalSignalListener::handleMesgStatsObj(cObject*)':
common/GlobalSignalListener.cc:83:43: error: call of overloaded 'emit(simsignal_t&, uint64_t&)' is ambiguous
emit(bytesOnWireSignal, mesgSizeOnWire);
^
common/GlobalSignalListener.cc:83:43: note: candidates are:
In file included from C:/Users/muham/omnetpp-4.6/include/omnetpp.h:26:0,
from common/GlobalSignalListener.h:23,
from common/GlobalSignalListener.cc:17:
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:419:10: note: void cComponent::emit(simsignal_t, bool)
void emit(simsignal_t signalID, bool b);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:426:10: note: void cComponent::emit(simsignal_t, long int)
void emit(simsignal_t signalID, long l);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:433:10: note: void cComponent::emit(simsignal_t, long unsigned int)
void emit(simsignal_t signalID, unsigned long l);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:440:10: note: void cComponent::emit(simsignal_t, double)
void emit(simsignal_t signalID, double d);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:451:10: note: void cComponent::emit(simsignal_t, const SimTime&)
void emit(simsignal_t signalID, const SimTime& t);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:458:10: note: void cComponent::emit(simsignal_t, const char*)
void emit(simsignal_t signalID, const char s);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:458:10: note: no known conversion for argument 2 from 'uint64_t {aka long long unsigned int}' to 'const char'
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:465:10: note: void cComponent::emit(simsignal_t, cObject*)
void emit(simsignal_t signalID, cObject obj);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:465:10: note: no known conversion for argument 2 from 'uint64_t {aka long long unsigned int}' to 'cObject'
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:468:10: note: void cComponent::emit(simsignal_t, const cObject*)
void emit(simsignal_t signalID, const cObject obj) { emit(signalID, const_cast<cObject >(obj)); }
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:468:10: note: no known conversion for argument 2 from 'uint64_t {aka long long unsigned int}' to 'const cObject'
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:471:10: note: void cComponent::emit(simsignal_t, char)
void emit(simsignal_t signalID, char c) {emit(signalID,(long)c);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:474:10: note: void cComponent::emit(simsignal_t, unsigned char)
void emit(simsignal_t signalID, unsigned char c) {emit(signalID,(unsigned long)c);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:477:10: note: void cComponent::emit(simsignal_t, short int)
void emit(simsignal_t signalID, short i) {emit(signalID,(long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:480:10: note: void cComponent::emit(simsignal_t, short unsigned int)
void emit(simsignal_t signalID, unsigned short i) {emit(signalID,(unsigned long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:483:10: note: void cComponent::emit(simsignal_t, int)
void emit(simsignal_t signalID, int i) {emit(signalID,(long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:486:10: note: void cComponent::emit(simsignal_t, unsigned int)
void emit(simsignal_t signalID, unsigned int i) {emit(signalID,(unsigned long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:489:10: note: void cComponent::emit(simsignal_t, float)
void emit(simsignal_t signalID, float f) {emit(signalID,(double)f);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:492:10: note: void cComponent::emit(simsignal_t, long double)
void emit(simsignal_t signalID, long double d) {emit(signalID,(double)d);}
^
common/GlobalSignalListener.cc:157:64: error: call of overloaded 'emit(std::unordered_map<long long unsigned int, int>::mapped_type&, uint64_t&)' is ambiguous
emit(mesgBytesOnWireSignals.at(mesgSizeBin), mesgSizeOnWire);
^
common/GlobalSignalListener.cc:157:64: note: candidates are:
In file included from C:/Users/muham/omnetpp-4.6/include/omnetpp.h:26:0,
from common/GlobalSignalListener.h:23,
from common/GlobalSignalListener.cc:17:
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:419:10: note: void cComponent::emit(simsignal_t, bool)
void emit(simsignal_t signalID, bool b);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:426:10: note: void cComponent::emit(simsignal_t, long int)
void emit(simsignal_t signalID, long l);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:433:10: note: void cComponent::emit(simsignal_t, long unsigned int)
void emit(simsignal_t signalID, unsigned long l);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:440:10: note: void cComponent::emit(simsignal_t, double)
void emit(simsignal_t signalID, double d);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:451:10: note: void cComponent::emit(simsignal_t, const SimTime&)
void emit(simsignal_t signalID, const SimTime& t);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:458:10: note: void cComponent::emit(simsignal_t, const char)
void emit(simsignal_t signalID, const char s);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:458:10: note: no known conversion for argument 2 from 'uint64_t {aka long long unsigned int}' to 'const char'
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:465:10: note: void cComponent::emit(simsignal_t, cObject*)
void emit(simsignal_t signalID, cObject obj);
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:465:10: note: no known conversion for argument 2 from 'uint64_t {aka long long unsigned int}' to 'cObject'
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:468:10: note: void cComponent::emit(simsignal_t, const cObject*)
void emit(simsignal_t signalID, const cObject *obj) { emit(signalID, const_cast<cObject >(obj)); }
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:468:10: note: no known conversion for argument 2 from 'uint64_t {aka long long unsigned int}' to 'const cObject'
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:471:10: note: void cComponent::emit(simsignal_t, char)
void emit(simsignal_t signalID, char c) {emit(signalID,(long)c);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:474:10: note: void cComponent::emit(simsignal_t, unsigned char)
void emit(simsignal_t signalID, unsigned char c) {emit(signalID,(unsigned long)c);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:477:10: note: void cComponent::emit(simsignal_t, short int)
void emit(simsignal_t signalID, short i) {emit(signalID,(long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:480:10: note: void cComponent::emit(simsignal_t, short unsigned int)
void emit(simsignal_t signalID, unsigned short i) {emit(signalID,(unsigned long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:483:10: note: void cComponent::emit(simsignal_t, int)
void emit(simsignal_t signalID, int i) {emit(signalID,(long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:486:10: note: void cComponent::emit(simsignal_t, unsigned int)
void emit(simsignal_t signalID, unsigned int i) {emit(signalID,(unsigned long)i);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:489:10: note: void cComponent::emit(simsignal_t, float)
void emit(simsignal_t signalID, float f) {emit(signalID,(double)f);}
^
C:/Users/muham/omnetpp-4.6/include/ccomponent.h:492:10: note: void cComponent::emit(simsignal_t, long double)
void emit(simsignal_t signalID, long double d) {emit(signalID,(double)d);}
^
Makefile:121: recipe for target '../out/gcc-debug/src/common/GlobalSignalListener.o' failed
make[1]: *** [../out/gcc-debug/src/common/GlobalSignalListener.o] Error 1
make[1]: Leaving directory '/c/Users/muham/omnetpp-4.6/samples/RpcTransportDesign/OMNeT++Simulation/homatransport/src'
make: *** [all] Error 2
Makefile:3: recipe for target 'all' failed

Fix Corner case
Mid value could be in trouble if when low = Max.Int -1 and high = Max.Int (Assuming priority cut offs size is as aig as Max.Int)
https://github.com/PlatformLab/HomaTransport/blob/c85e2b69021a8f66f6ba62835b0d8c6762b9f468/RpcTransportDesign/OMNeT%2B%2BSimulation/homatransport/src/transport/PriorityResolver.cc#L36

Hi behnamm, I wonder the structure of your ns2 simulation code, can you give me a README? And I cannot find out the source code solving the priority, can you give me a path? Thanks a lot!