Re: [Gems-users] problem with CMP and tester.exec

[Luke Yen <lyen@xxxxxxxxxxx>]

Irene,

  If the threads are not bound to processors all the created threads may 
be executing on a single processor (proc 0?), especially for a 
short micro-benchmark like deque.
  Luke

On Wed, 6 Feb 2008, Irene-Aggeliki Chounta wrote:

> Hello Luke and thanks for the answer.
>
> >    Can you elaborate on these traces?  How are they gathered, and what
> > relevant config settings are you using?  Are these transactional memory
> > runs?  Are the threads getting created and bound to processors without
> > problems?
> >
> >   Luke
> In order to gather the traces I use the ruby0.tracer-output-file command
> from simics. I run the deque-tm.simics script for a MOSI_SMP_bcast protocol,
> where I have defined g_NUM_PROCESSORS 4. I haven't checked how threads are
> bound to processors though....
>
> irene.
> -------------------------------------------------------------------
>
> ......in accordance with the prophecy.
>
> ----- Original Message -----
> From: "Luke Yen" <lyen@xxxxxxxxxxx>
> To: "Gems Users" <gems-users@xxxxxxxxxxx>
> Sent: Monday, February 04, 2008 6:00 PM
> Subject: Re: [Gems-users] problem with CMP and tester.exec
>
>
> > On Mon, 4 Feb 2008, Irene-Aggeliki Chounta wrote:
> >
> > > oh, I see. Still, do you think I can use it through simics without major
> > > problems?
> >    Yes, by default we don't check data values when running with
> > Simics, and we haven't experimentally run into any races with PUTX until
> > now.
> >
> > > and another thing, I tried to get some traces from MOSI_SMP_bcast and
> > > MESI_CMP_filter_directory while executing barnes,deque and other
> > > benchmarks
> > > but I get traces only from CPU 0, although I use g_NUM_PROCESSORS=16.
> > > Following the same methodology in gems 1.4 everything was fine. Do you
> > > have
> > > any ideas on this one?
> >    Can you elaborate on these traces?  How are they gathered, and what
> > relevant config settings are you using?  Are these transactional memory
> > runs?  Are the threads getting created and bound to processors without
> > problems?
> >
> >   Luke
> >
> > > -
> > > irene.
> > > -------------------------------------------------------------------
> > >
> > > ......in accordance with the prophecy.
> > >
> > > ----- Original Message -----
> > > From: "Luke Yen" <lyen@xxxxxxxxxxx>
> > > To: "Gems Users" <gems-users@xxxxxxxxxxx>
> > > Sent: Monday, February 04, 2008 5:19 PM
> > > Subject: Re: [Gems-users] problem with CMP and tester.exec
> > >
> > >
> > > >    There are some missing u_writeDataToL1Cache actions in the
> > > > current MESI_CMP_filter_directory-L1cache.sm file.  They should be added
> > > > whenever the L1 receives data from the L2 or L1.  Here's a list of
> > > > transitions that need this action:
> > > >
> > > > transition(IS, L2_Data_all_Acks, S) {
> > > >     u_writeDataToL1Cache;
> > > >     ...
> > > >
> > > >  transition(IS_I, L2_Data_all_Acks, S) {
> > > >     u_writeDataToL1Cache;
> > > >    ...
> > > >
> > > >  transition({IS, IS_I}, L2_Data, IS_S) {
> > > >     u_writeDataToL1Cache;
> > > >     ...
> > > >
> > > > transition({IS, IS_I}, L2_Exclusive_Data, IS_E) {
> > > >     u_writeDataToL1Cache;
> > > >    ...
> > > >
> > > >   transition({IS, IS_I}, L2_Exclusive_Data_all_Acks, E){
> > > >     u_writeDataToL1Cache;
> > > >     ...
> > > >
> > > >   transition(IS, DataS_fromL1, S) {
> > > >     u_writeDataToL1Cache;
> > > >    ...
> > > >
> > > >  transition(IS_I, DataS_fromL1, S) {
> > > >     u_writeDataToL1Cache;
> > > >    ...
> > > >
> > > >   transition(IM, Data_all_Acks, M) {
> > > >     u_writeDataToL1Cache;
> > > >    ...
> > > >
> > > >  transition(IM, L2_Data, IM_M) {
> > > >     u_writeDataToL1Cache;
> > > >     ...
> > > >
> > > >   transition(IM, L2_Data_all_Acks, M){
> > > >     u_writeDataToL1Cache;
> > > >    ...
> > > >
> > > >    Even with these fixes, this protocol can still fail the tester due to
> > > > complex PUTX races that we are currently debugging & fixing.  The next
> > > > version of this protocol will be coming out with GEMS 2.1, once we get
> > > > all
> > > > its features tested & debugged.
> > > >
> > > >    Luke
> > > >
> > > > On Mon, 4 Feb 2008, Irene-Aggeliki Chounta wrote:
> > > >
> > > > > hello all.
> > > > >
> > > > > I've recently upgraded to GEMS 2.0 and working on
> > > > > MESI_CMP_filter_directory. The making of ruby for this protocol is
> > > > > quite
> > > > > succesful but while running the tester.exec (./tester.exec -p 16 -l
> > > > > 10000), I get several warning and a fatal error:
> > > > >
> > > > > "Fatal Error: in fn void Check::performCallback(NodeID, SubBlock&) in
> > > > > tester/Check.C:208: Action/check failure"
> > > > >
> > > > > In rubyconfig.defautls I have used NUMBER_OF_VIRTUAL_NETWORK=5 and 6
> > > > > but
> > > > > with no luck. I also tried to test the MESI_CMP_directory which also
> > > > > doesn't work and produces the same error.
> > > > >
> > > > > Do you have any idea of what's wrong?
> > > > >
> > > > > thank you.
> > > > >
> > > > >
> > > > >
> > > > > -------------------------------------------------------------------
> > > > > Irene.
> > > > > ......in accordance with the prophecy.
> > > > _______________________________________________
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