Re: [Gems-users] Start Ruby after the simulation is running?

[Xuan Qi <xqi@xxxxxxxxxxx>]

It clears my confusion. Thanks Luke and Dan!

Best regards,
Xuan Qi


On Mon, 3 Mar 2008, Luke Yen wrote:

>
>    No, it means you shouldn't count them as part of your total execution
> time during simulation.
>
>    Luke
>
> On Mon, 3 Mar 2008, Xuan Qi wrote:
>
> > 4) Be careful to only simulate the important regions of code -- do not
> >
> >   include thread creation / destruction, process forking, etc.
> >
> >   BTW, does this mean GEMS can't simulate multiprogramed or multithreaded
> >   programs? Thanks!
> >
> >   Best regards,
> >   Xuan Qi
> >
> > On Mon, 3 Mar 2008, Dan Gibson wrote:
> >
> >> Have a look at the various headers that come in the LogTM codebase, in
> >> transactions/common/ (GEMS 2.0+) in particular. There should be some
> >> handy macros there intended for this purpose.
> >>
> >> Regards,
> >> Dan
> >>
> >> Philip Garcia wrote:
> >>       Look in the simics reference manual about using the special
> >>       magic instructions.  Using magic breakpoints in the code
> >>       (combined with having set magic-break-enable before running
> >>       the code) will have simics stop execution at that
> >>       instruction.  Just make sure you do a "c 1" after the magic
> >>       instruction before saving the processor's state.  If you
> >>       don't do this, the state will be saved at the magic
> >>       instruction, and telling it to execute again will just cause
> >>       it to break again.
> >> Phil
> >> On Mar 3, 2008, at 1:13 AM, Jim Leek wrote:
> >>
> >>       The wiki FAQ
> >>       (http://www.cs.wisc.edu/gems/doc/wiki/moin.cgi/Frequently_Asked_Questions)
> >>       recommends the following:
> >>
> >>  4) Be careful to only simulate the important regions of code -- do not
> >>
> >> include thread creation / destruction, process forking, etc.
> >>
> >>       That sounds like a good idea.  What is the standard way
> >>       to do this?  It seems like you would have to throw an
> >>       instruction into the benchmark code to halt the
> >>       simulation and drop back to the simics CLI.  Is there
> >>       an instruction to do this?  I guess I could use
> >>       getchar() to do that.  What did the logTM guys do?
> >>
> >>       Jim
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> >>
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> >>
> >>
> >
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