[gem5-users] Re: AMD GCN3 - Can't use single CPU - fatal no spare thread context

2020-08-08 Thread Sampad Mohapatra via gem5-users
Thanks Matt. Thats a lot of helpful information. I will investigate further. Virus-free. www.avast.com

[gem5-users] Re: AMD GCN3 - Can't use single CPU - fatal no spare thread context

2020-08-08 Thread Matt Sinclair via gem5-users
I don't know the answer to this, and would need to look just the same as you. My guess is that a) the thread contexts do not necessarily require running on different CPUs and b) after the check I described, the one thread won't be doing anything more after that point, so its effect on subsequent

[gem5-users] Re: AMD GCN3 - Can't use single CPU - fatal no spare thread context

2020-08-07 Thread Sampad Mohapatra via gem5-users
Hi Matt, Thanks for the clarification. My issue is I need more than 1 cpu. In this scenario what will be the effect of this extra cpu on the coherence traffic, i.e. does it become part of a Core Pair and take part in coherence exchanges ? When I am placing cpus in a garnet topology, how do I

[gem5-users] Re: AMD GCN3 - Can't use single CPU - fatal no spare thread context

2020-08-07 Thread Matt Sinclair via gem5-users
Hi Sampad, To literally answer the clone error part: this happens when your application needs multiple thread contexts to run. The failure happens when -n 1 is used because the simulator doesn't have enough thread contexts to fulfill what the application needs. Of course, the next logical