Re: [Gems-users] Processor Lost

[James Wang <jameswang99@xxxxxxxxx>]

Hi Dan:
    Thank you very much for your prompt reply. But I don't really understand what the nature of this situation is. Why would the OS want to deschedule my 
benchmark? Also, I bound the thread to the processor, should it just stay there and run? I did this with a four processor simulated machine, why other processors
are not affected by this problem? 

 
Regards
James

----- Original Message ----
From: Dan Gibson <degibson@xxxxxxxx>
To: Gems Users <gems-users@xxxxxxxxxxx>
Sent: Friday, May 4, 2007 1:03:42 AM
Subject: Re: [Gems-users] Processor Lost

The OS could be descheduling your transactional benchmark, though I'm 
not sure why that might be happening. Try quiescing the system by 
killing background processes, and then pre-fetch any binaries or data 
you might be using in your benchmark by running it once to completion 
before loading Ruby (and hence, without synchronization). That should 
eliminate any I/O you might inadvertenly cause at runtime. It will also 
cause your benchmark to run with different system interactions, and will 
hopefully fix the Processor Lost/Processor Found problem.

Regards,
Dan

James Wang wrote:

>Hi All:
>    I am running some transactional memory benchmark using a customized SMP cache coherent protocol. For some reason, p0 will run code other than the transactional benchmark and the other processors finishes fine. I cannot really tell what p0 is doing. I tried a few different random seed, the same situation happens every time. 
>    Any idea?
>    Thanks for any reply in advance.
> 
>Regards
>James
>
>
>_______________________________________________
>Gems-users mailing list
>Gems-users@xxxxxxxxxxx
>https://lists.cs.wisc.edu/mailman/listinfo/gems-users
>Use Google to search the GEMS Users mailing list by adding "site:https://lists.cs.wisc.edu/archive/gems-users/";; to your search.
>
>
>  
>
_______________________________________________
Gems-users mailing list
Gems-users@xxxxxxxxxxx
https://lists.cs.wisc.edu/mailman/listinfo/gems-users
Use Google to search the GEMS Users mailing list by adding "site:https://lists.cs.wisc.edu/archive/gems-users/";; to your search.