If you can spend that much, throwing it all on CPU is honestly a waste.
Even the fastest EPYC setups are way behind GPUs in raw keyrate for secp256k1.
A single RTX 5090 will crush any 192-core CPU in keys/sec, and for less power and less cash.
Unless you’re doing something highly specialized on CPU, brute-forcing with GPU is just smarter. 😄
I tried on some low keys puzzles with /Etayson/BSGS-cuda and my RTX 4080 is slower at sequential search than a single EPYC with 64 cores and bloom filter of about 1T in size.
Indeed, RCKangaroo or any other Kangaroos out there are faster but on puzzles beyond 135 things get complicated.