NVIDIA ASIC Engineer interview questions

First Screening Round * 2 basic RTL Questions, 1 Scripting * Blocking vs non blocking, reg vs wire * Python scripting question: file I/O, basic string parsing * 2nd RTL question: Basic 2 stage adder, design Verilog module given circuit description * Some resume questions Second Screening Round * Advanced scripting question on retiming registers * RTL question on accumulating data per address * Some theoretical FIFO questions (no code) * Packed vs unpacked arrays in depth Panel Round First Round * Basic scripting question on data conversion and string parsing (CSV) * Open-ended question on finding an error in a mux-based programmable delay circuit * Resume questions Second Round * Designing a 10:1 mux using 3 4:1 muxes * 80:20 to 8:2 module, FIFO depth Third Round (Hiring Manager) * Fibonacci Sequence in Python: Iterative and Recursive * Fibonacci Sequence in Verilog: Serial approach, FSM Design * Detailed discussion about team functions, responsibilities, day-to-day job Fourth Round * 4x4 multiplier in Verilog * Optimize to pipeline multiplies * Optimize to use a single MAC unit and serially feed in data * Second largest sum in a Python list Fifth Round * Debugging a Perl script * A lot of questions about intermediate expressions in Verilog and data-loss