On Sat, 24 Nov 2012, megha gupta wrote:
Dear friends i am a new gem5 users and a beginner................therefore alot of queries....... 1. In a CMP.............the address request send through a core............is a virtual address( as per theory) and TLB convert it into physical address...........my question is what is the size of physical address in gem5....................can it be configured by making some changes in any script file.
The size of the physical address space is decided by the physical memory that can be addressed. You can set the memory size according to the size of the physical address you want.
2. In MESI_CMP_directory for shared L2 cache.............................is the directory entries are colocated with the cache block or it is centralized................how to understand this................
You can read about the coherence protocols on this page -- http://www.gem5.org/Cache_Coherence_Protocols.
3. if the directory entries are colocated with the block in l2 cache then ..............................will L2 cache controller be the same as directory controller or there are separate directory and l2 cache controller
The directory entry is colocated with L2 cache line. They are maintained by the same controller.
4. In multibanked shared L2 cache like Static-NUCA............and D-NUCA....................will there a single L2 cache controller or .................each L2 bank has separate cache controller
As of now, each bank has a separate controller. You will have to modify the protocol if you want multiple banks under the same controller.
-- Nilay _______________________________________________ gem5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
