On Thu, 24 Feb 2011 16:34:06 -0500, <atgut...@umich.edu> wrote:
Okay, I see. If I setup up these extra cores in the config script and
add
them to the system is it enough to set defer_registration to 1 to
ensure
they will not run? In this case I'm assuming my idea of scheduling an
event
in the C++ that switches out and takes over from would work and I
could
switch back and forth between the two different cpu types any time I
wanted?
Not quite. I'm not sure if you can only do it is C++. I imagine you're
going to have to re implement some of the drain functionality that
exists in python. My are you so opposed to dropping back into python
from the simulation and switching? That is what switchcpus() does (it
just exists from python). You'll then need to drain the memory system
and switch. You can change back and forth as long as you leave the
memory system the same. If you try and switch the memory system any
caches with dirty data will be lost. If you want to do that you'll
either need to implement some functionality that cleans the caches or
create a bunch of checkpoints with an atomic cpu at different points and
switch between those.
Ali
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