Greetings Gem5 Wizards, My research group has recently started using Gem5 (coming from m5) and we have noticed that of the 4 types of CPU available (Atomic, Detailed(O3), Timing, InOrder) all but the Detailed model take the exact same number of instructions to complete a benchmark. The Detailed CPU consistently requires less instructions (about %10 less) to complete a given benchmark. Multiple benchmarks have indicated the same results. We are aware that the main difference between the Detailed CPU and the others is that it is an out-of-order processor. Is it possible this is the cause of the difference? If this is a well-known or obvious issue, I apologize in advance for wasting your time. Let it be known that I did search the archives to no avail. :(
Any insight into this would be most appreciated. Thank you, Zeb Barnett ----- Student Research Assistant High Performance Computer Lab Lamar University CONFIDENTIALITY: Any information contained in this e-mail (including attachments) is the property of The State of Texas and unauthorized disclosure or use is prohibited. Sending, receiving or forwarding of confidential, proprietary and privileged information is prohibited under Lamar Policy. If you received this e-mail in error, please notify the sender and delete this e-mail from your system. _______________________________________________ gem5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
