Charm++ parallel programming system

[Eric Bohm <ebohm AT uiuc.edu>]

You should edit your netconfig file and set  USE_TRANSCEIVER 0.   That 
way it will use your trace files.  With USE_TRANSCEIVER set to 1, the 
simulator expects command line parameters directing it in which traffic 
patterns you wish it to generate.


Link load can be obtained by setting DISPLAY_LINK_STATS to 1 as can 
message delay by DISPLAY_MESSAGE_DELAY 1.    The resolution of this data 
collection is controlled by the frequency set in COLLECTION_INTERVAL.


Look in trunk/main/Nic.C NetInterface::recvPacket(Packet *p)  ~ line 400 
for an example.   Grep on config.collection_interval and you'll pretty 
much hit all the code sections involved in message and link statistics 
collection. 



gaurav khanna wrote:
> Hello all,
>
> I am able to go one step furthur by being able to compile and run
> charm++/AMPI on i686 machines. Previously when I had posted the query I
> was trying it on x86_64 machines and it does not compile there.
>
> However, I am not still not able to successfully run BigNetSim. The readme
> file README.bigsim explains the usage of BigNetSim using the traces
> obtained by running BigSim. However, I am getting the following errors.
>
> I am using the program jacobi in the directory
> charm/net-linux-bigemulator/examples/ampi/Cjacobi3D in my installation.
>
> I first run jacobi as follows.
> ./charmrun +p2 jacobi +vp64 +x4 +y4 +z4 +cth1 +wth1 +bglog
> This runs fine and generates trace files of the form bglog*. Now, I feed
> it to a BlueGene Interconnection topology according to the instructions
> in the README.bigsim file.
> ./charmrun +p2 bigsimulator 1 0
>
> I get the following error.
>
>  Transceiver usage is pgm <trafficGenerator> <trafficPattern> <msgSize>
> <loadfactor>
> ------------- Processor 0 Exiting: Called CmiAbort ------------
> Reason: Too few arguments
> Stack Traceback:
>   [0] CmiAbort+0x4a  [0x818169e]
>   [1] _ZN6Config10readConfigEP8CkArgMsg+0x684  [0x810677e]
>   [2] _ZN4mainC1EP8CkArgMsg+0x126  [0x80ea84c]
>   [3] _ZN12CkIndex_main19_call_main_CkArgMsgEPvP4main+0x2b  [0x80eb421]
>   [4] _Z10_initCharmiPPc+0xa31  [0x81431db]
>   [5]
> /j/osu3672/charm/net-linux-bigemulator/examples/ampi/Cjacobi3D/bigsimulator
> [0x81847d4]
>   [6] ConverseInit+0x2aa  [0x8184c19]
>   [7] main+0x20  [0x814d7f4]
>   [8] __libc_start_main+0xaa  [0x4012fbba]
>   [9] gzprintf+0x51  [0x80ba411]
> Fatal error on PE 0> Too few arguments
>
> Could you help me on this?
>
> Second thing as I have mentioned before is that my objective is to collect
> performance characteristics like the total amount of communication on each
> network link, # messages sent/recieved etc. I think your tool BigNetSim
> looks very appropriate to do such a thing except that I will need to make
> changes to the code to collect information like the #messages transferred
> on each link, total data transferred on each link etc. If its not too much
> of an effort for you, could you point me to places in code where this can
> be done.
>
> Regards
> Gaurav
>
> Gaurav Khanna
> Phd Student
> CSE Department,OSU
>
> Phone (office):614-292-7036
>
> On Wed, 7 Feb 2007, gaurav khanna wrote:
>
>   
> > Hi,
> >
> > I needed a simulator which allow me to simulate parallel codes on regular
> > topologies like torus with an accurate model of interconnection network
> > and contention. From my understanding, I think BigSim and BigNetSim is
> > something that can help me do that.
> >
> > I tried to compile charm++ as follows.
> >
> > ./build bigsim mpi-linux bigsim -O
> >
> > I get the following error.
> > Error> option: bigsim is not supported in this version!
> > Supported compilers: cmpi cmpigcc cxx gcc gcc3 icc iccstatic kcc pgcc xlc
> > xlc64
> > Supported options: bluegene elan gm gm2 ifort lcs mpt ooc papi pgf90
> > pthreads scyld smp vmi
> >
> > Does charm5.9 does not support BigSim? How can I fix this one.
> >
> > My objective is to collect performance characteristics like the total
> > amount of communication on each network link, # messages sent/recieved
> > etc. I think your tool BigNetSim looks very appropriate to do such a
> > thing except that I will need to make changes to the code to allow me to
> > collect communication performance characteristics. If its not too much
> > of an effort for you, could you point me to places in code where this can
> > be done.
> >
> > Regards
> > Gaurav
> >
> > Gaurav Khanna
> > Phd Student
> > CSE Department,OSU
> >
> > Phone (office):614-292-7036
> >
> > _______________________________________________
> > charm mailing list
> > charm AT cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/charm
> >
> >     
>
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