WEEK 1 · LESSON 5 · TOPIC 3 OF 21 · Parallelism Reduces Elapsed Time

Parallelism Reduces Elapsed Time

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  1. Overview

Overview

The method is not merely repeated prompting. It is parallel repeated prompting.

Suppose one analysis takes five minutes. Running it three times in sequence takes approximately fifteen minutes. Running three independent agents simultaneously can produce three analyses in approximately the time required for one.

The system spends more compute, but it saves elapsed time and expands coverage.

This trade-off is central to agentic work:

  • Sequential execution minimizes simultaneous resource usage but takes longer.
  • Parallel execution consumes more resources at once but finishes faster and explores more paths.

The correct choice depends on whether the additional coverage and speed justify the token cost.