I see two issues:


The issue is that the reported and usable L3 Cache is 48.0 MB whereas it should be 64.0 MB.

Each AMD Opteron 6378 has 16MB (2x 8MB) of L3 Cache so four of them has 64MB of L3 Cache:
http://www.cpu-world.com/CPUs/Bulldozer/AMD-Opteron%206378%20-%20OS6378WKTGGHK.html

Look for an option in the BIOS (probably in the CPU/Processor section) that says something like "HT Assist" or "Probe Filter Lookup". If that is enabled then it steals 2MB L3 Cache from each NUMA node or 4MB L3 from each 6378 Opteron which reduces the L3 Cache per 6378 Opteron from 16MB to 12MB and 12MB time four is the 48MB you are seeing.

So find that "HT Assist"/"Probe Filter Lookup" option, disable it, reboot and retest.

If you don't see that setting make sure you are on the latest BIOS version for your motherboard.


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By selecting the coin to be monero you are effectively mining the current algorithm CryptonightR and not RandomX.
You need to reset coin back to null in the config.json file to test RandomX.