Re: [Gems-users] ctrl+C does not interrupt the simulation

[Mahmood Naderan <mahmood.nt@xxxxxxxxx>]

I added to signal(SIGINT,SignalInt) to system_t::system_t( const char
*configurationFile ) in system.C and compiled opal again. Here is the
error:
....
system/system.C:314: error: ‘SignalInt’ was not declared in this scope
system/system.C: In member function ‘void
system_t::postedBreakpoint(uint32, uint32)
....

_mnaderan_




On Tue, Oct 13, 2009 at 12:06 PM, Philip Garcia <pcgarcia@xxxxxxxx> wrote:
> my copy only has the one in system.C that is passed in a configuration
> file.  If there are multiple ways that system_t can be instantiated in
> your version, put the line in each path.  Basically that call just
> needs to be made somewhere in the code early on so that it registers
> the signal handler.
>
> Phil
> On Oct 13, 2009, at 3:10 AM, Mahmood Naderan wrote:
>
>>> Then in the system_t constructor class, i register my signal handler
>>> with opal using:
>>> signal(SIGINT,SignalInt);
>>
>> I have found two constructors for system_t in system.C and system.h.
>> Which one do you mean?
>>
>> _mnaderan_
>>
>>
>>
>>
>> On Tue, Oct 13, 2009 at 11:20 AM, Philip Garcia <pcgarcia@xxxxxxxx>
>> wrote:
>>> I had this same issue a while back when I switched to using Simics
>>> 3.0.  An unsupported workaround to this is to install your own ctrl-c
>>> signal handler into opal/system/system.C .
>>>
>>> I can't say exactly what the changes are, as I don't know offhand
>>> which stuff I've added to system.C and what is in the vanilla
>>> system.C
>>>
>>> Adding the signal handler itself is pretty easy, I just include the
>>> file  #include <signal.h>
>>> I also added the following function into system.C (not as a method of
>>> the class, just a plain C function):
>>>
>>> void SignalInt(int sig)
>>> {
>>>   signal (sig,SIG_IGN); //ignore the signal
>>>   //HaltSimulation("hit control-c");
>>>   HALT_SIMULATION;
>>>   signal(SIGINT,SignalInt);
>>> }
>>>
>>> Then in the system_t constructor class, i register my signal handler
>>> with opal using:
>>>
>>> signal(SIGINT,SignalInt);
>>>
>>> This should allow ctrl-C events to halt opal.  I'm not sure why opal
>>> no longer gets the SIGINT signal from simics.  The simics forum said
>>> something about how they don't know what would happen if you add your
>>> own signal handler (like I did), but this method has worked pretty
>>> well for me.
>>>
>>> Phil
>>>
>>> On Oct 13, 2009, at 2:27 AM, Mahmood Naderan wrote:
>>>
>>>> Hi,
>>>> I have followed the instructions to start a simulation. After
>>>> successfully loading ruby and opal, I ran these commands:
>>>> simics> ruby0.setparam g_NUM_PROCESSORS 1
>>>> simics> ruby0.setparam g_MEMORY_SIZE_BYTES 4294967296
>>>> simics> ruby0.init
>>>> simics> opal0.init
>>>> simics> opal0.simstart "results.opal"
>>>>
>>>> Now at this point I ran  simics> opal0.simstep 10000000000, and it
>>>> seems the simulation starts, but I am not able to interrupt it with
>>>> ctrl+C (!). pressing ctrl+C results in displaying ^C character only.
>>>> How can I stop it?
>>>>
>>>> Thanks,
>>>> _mnaderan_
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