Re: [Gems-users] "* ERROR: object 'ruby0' has no queue associated"

[Dan Gibson <degibson@xxxxxxxx>]

Sometimes, everyone is bested by Simics... work-arounds are good things 
to know about. Perhaps something about the indirection... interesting, 
but strange.
Regards,
Dan

Shougata Ghosh wrote:

> Dan
> I figured out where the problem was. As I mentioned before, I added a 
> function SIMICS_get_cycles() which I was calling from commands.C. This 
> call was fine and was not generating any errors. However, inside ruby.c, 
> I was calling the simics API SIM_cycle_count() directly since ruby.c 
> included the "simics/api.h" file. This call was the culprit!!
> Now I added a function get_simics_cycle() in commands.C which just calls 
> SIMICS_get_cycles(). And from ruby.c, I call get_simics_cycle() which 
> works just great! I am still not sure why the previous method was giving 
> an error - the underlying function call is still the same. But I'm glad 
> it's working now :)
> Thanks for all the help
> shougata
>
>
> Dan Gibson wrote:
> >
> >Some Simics API functions need to be issued only from "event-posting" 
> modules... Opal I believe is an "event-posting" module (see opal.c for 
> details). I don't thin SIM_cycle_count() is one of these functions, but 
> I could be wrong.
> >
> >Can you trace the error to the call of SIM_cycle_count() precisely?
> >
> >Regards,
> >Dan
> >>
> >>Shougata Ghosh wrote:
> >>
> >>
> >>    Hi Dan
> >>
> >>    I am using simics 2.2.19. Actually I did add the simics API 
> SIM_cycle_count(). I wanted to get simics cycle from inside ruby. I made 
> changes in the following files:
> >>
> >>    in GEMS/ruby/simics/interface.h:
> >>       long SIMICS_get_cycles (int cpuNumber);
> >>
> >>    in GEMS/ruby/simics/interface.C:
> >>       long SIMICS_get_cycles (int cpuNumber) {
> >>
> >>    conf_object_t* proc_ptr = (conf_object_t *) 
> SIM_proc_no_2_ptr(cpuNumber);
> >>
> >>           return (long) SIM_cycle_count (proc_ptr);
> >>       }
> >>
> >>    in GEMS/ruby/simics/simics_api_dummy.c:
> >>       cycles_t SIM_cycle_count (conf_object_t* obj) { assert(0); 
> return 0; };
> >>
> >>    Am I missing something here? Do I need to make changes in other 
> places as well?
> >>
> >>    And thanks again for such quick replies.
> >>    shougata
> >>
> >>
> >>
> >>    >
> >>    >What is the simics version?
> >>    >Have you added any Simics API calls to the Ruby codebase?
> >>    >
> >>    >Regards,
> >>    >Dan
> >>    >
> >>    >>Shougata Ghosh wrote:
> >>    >>
> >>    >>
> >>    >>    Hi
> >>    >>    I was running ruby with simics and I got the following 
> error message:
> >>    >>    * ERROR: object 'ruby0' has no queue associated
> >>    >>     patching by forcing association to processor object 'cpu0'
> >>    >>
> >>
> >>    >> Has anyone seen this or anything similar before? This is what 
> I was doing:
> >>
> >>    >>    I start simics with "./simics -stall"
> >>    >>    read a checkpoint
> >>    >>    add a hap_callback for magic breakpoints that just pauses 
> simics
> >>    >>    run my benchmark program
> >>    >>
> >>
> >>    >> When the first breakpoint is reached and simics is paused, I 
> delete the hap_callback function I had added before.
> >>
> >>    >>
> >>    >>    Then I load ruby with the following:
> >>    >>       dstc-disable
> >>    >>       magic-break-disable
> >>    >>       cpu-switch-time (1)
> >>    >>       c 10000
> >>    >>       #Print new cpu switch time
> >>    >>       cpu-switch-time
> >>    >>       magic-break-enable
> >>    >>       load-module ruby
> >>    >>       #Ruby parameters
> >>    >>       ruby0.setparam g_NUM_PROCESSORS 16
> >>    >>       ruby0.setparam g_PROCS_PER_CHIP 1
> >>    >>       ruby0.setparam g_MEMORY_SIZE_BYTES 268435456
> >>    >>       ruby0.setparam_str REMOVE_SINGLE_CYCLE_DCACHE_FAST_PATH true
> >>    >>
> >>    >>    ruby0.init
> >>    >>
> >>    >>    [At this point, I get the following confirmation:
> >>    >>       successful installation of the ruby timing model.
> >>    >>       Ruby Timing Mode
> >>    >>       Warning: optimizations not enabled.
> >>    >>       Creating event queue...
> >>    >>       Creating event queue done
> >>    >>       Creating system...
> >>    >>         Processors: 16
> >>    >>       Creating system done
> >>    >>       Ruby initialization complete]
> >>    >>
> >>    >>    Then I continue running the simulation
> >>    >>
> >>    >>    The first time ruby is invoked from simics, I get this 
> error message:
> >>    >>    * ERROR: object 'ruby0' has no queue associated
> >>    >>     patching by forcing association to processor object 'cpu0'
> >>    >>
> >>    >>    Any ideas?
> >>    >>    Thanks a lot
> >>    >>    -shougata
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> >>    >>
> >>    >>
> >>
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