Why distributed systems and HPC are the most interesting fields to master now

Abhishekcur · x · 2026-10-20

The author argues distributed systems and high-performance engineering are the most interesting fields because they tackle surreal problems that ML systems heavily depend on. Key points: revise OS and computer architecture fundamentals; learn memory, CPU caches, concurrency and networking; writing code is only a small part — understanding data flow, memory usage and bottlenecks matters more; small changes in memory access can yield huge performance gains, and sometimes the problem lies in OS thread scheduling, CPU workload handling, or inter-machine communication rather than the code.

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