Cache access count does not match in metrics.csv and mem.trace

[syifan]

Discussed in #84

^{Originally posted by Soilorian July 16, 2024}
Hello Mr. Sun, hope you are well

during my exploration on mgpu-sim and working with the mem.trace file I've noticed something strange. I was comparing the results of my analysis on this file and the pre made hit and miss count by using the -report-cache-hit-rate flag and I see some differences.
for example, on fir benchmark after building and running the code with the following command

./fir -timing -trace-mem -report-cache-hit-rate

there is a contradiction.

if we see the metrics file we see that for a specific cache like GPU[1].SA[3].L1SCache we see a total of 275 requests

but by simply counting the lines which match end.*GPU[1].SA[3].L1SCache regex pattern in the mem.trace file, we see a total of 320 matches

so either the metrics didn't catch all of the requests going to this cache or mem.trace file contains some redundant requests( I also checked, the requests didn't have the same id so they are not duplicate) what is the reason for this?