Re: [Gems-users] Error with a CMP configuration

["Salil..." <floydian27@xxxxxxxxx>]

hi
I am sorry , I should have included this in the ealier email, 
MSI_MOSI_CMP_directory is the protocol .
It might be a bug, I was reading throught the sequencer code, It mainly 
handles consistency stuff, could you let me know the conditiions under 
which the error might be thrown, I can then put all the pieces together
salil

Mike Marty wrote:

> Which protocol?  Our CMP protocols included with the release are
> MOESI_CMP_token, MSI_MOSI_CMP_directory, and MOESI_CMP_directory.  The
> latter two are especially complex and you might have uncovered a bug.
>
> --Mike
>
>
>  
>
> > hi,
> >    I am using ruby to setup a CMP 32 processor system (16 CMP's) along
> > with simics. I got the following error (only while running 32 threads, a
> > configuration with lesser threads seems to run fine )
> > Warning: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:119: Possible Deadlock detected
> > Warning: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:119: Possible Deadlock detected
> > Warning: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:120: request is [CacheMsg: Address=[0xb93ae54, line
> > 0xb93ae40] Type=ATOMIC ProgramCounter=[0xff242660, line 0xff242640]
> > AccessMode=UserMode Size=1 Prefetch=No Version=0 Aborted=0 Time=894780000 ]
> > Warning: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:120: request is [CacheMsg: Address=[0xb93ae54, line
> > 0xb93ae40] Type=ATOMIC ProgramCounter=[0xff242660, line 0xff242640]
> > AccessMode=UserMode Size=1 Prefetch=No Version=0 Aborted=0 Time=894780000 ]
> >
> > Warning: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:125: keys.size() is 1
> > Warning: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:126: *m_writeRequestTable_ptr is [ [0xb93ae40, line
> > 0xb93ae40]=[CacheMsg: Address=[0xb93ae54, line 0xb93ae40] Type=ATOMIC
> > ProgramCounter=[0xff242660, line 0xff242640] AccessMode=UserMode Size=1
> > Prefetch=No Version=0 Aborted=0 Time=894780000 ] ]
> > Warning: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:126: *m_writeRequestTable_ptr is [ [0xb93ae40, line
> > 0xb93ae40]=[CacheMsg: Address=[0xb93ae54, line 0xb93ae40] Type=ATOMIC
> > ProgramCounter=[0xff242660, line 0xff242640] AccessMode=UserMode Size=1
> > Prefetch=No Version=0 Aborted=0 Time=894780000 ] ]
> > Fatal Error: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:127: Aborting
> > Fatal Error: in fn virtual void Sequencer::wakeup() in
> > system/Sequencer.C:127: Aborting
> > ***  Simics getting shaky, switching to 'safe' mode.
> > ***  Simics (main thread) received an abort signal, probably an assertion.
> > <Simics is running in 'safe' mode>
> >
> > My configuration is pretty standard , I am using PT_TO_POINT topology
> > network. I havent made any changes in the ruby code . The program is a
> > simple LU benchmark from the splash 2 suite.
> > I am using simics 2.0.16 on host x86-linux.
> > Can you give me some idea about this error so that I can try to fix it.
> > salil
> > _______________________________________________
> > Gems-users mailing list
> > Gems-users@xxxxxxxxxxx
> > https://lists.cs.wisc.edu/mailman/listinfo/gems-users
> >
> >    
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