The Zen of Parallel Programming

# The Zen of Parallel Programming - smolnero Source: [https://smolnero.com/posts/the-zen-of-parallel-programming](https://smolnero.com/posts/the-zen-of-parallel-programming) As I continue reading*An Introduction to Parallel Programming*, I cannot help but notice a connection between communication among processors, communication among human beings, and communication within the individual self\. Increasing computational power has allowed us to decode the human genome, improve medical imaging, accelerate web searches, and approach problems that were previously unimaginable\. Climate modeling, protein folding, drug discovery, energy research, and large\-scale data analysis all depend upon enormous computational resources\. But the textbook’s deeper lesson is that adding more processors does not automatically produce more useful work\. A problem must first be divided into parts\. Those parts must communicate, synchronize, and share the workload\. One processor cannot remain overloaded while the others wait\. Nor can every processor compete endlessly for the same resource\. The challenge is no longer simply producing more power\. It is learning how to coordinate the power we already possess\. Perhaps the same is true of human beings\. A person may possess intelligence, emotional depth, physical energy, memory, and creativity, yet still become overwhelmed when these parts are unable to work together\. The mind may say one thing while the body communicates another\. Speech may conceal both\. Memories may continue running like unfinished processes, consuming attention long after the original event has passed\. In*Zen Mind, Beginner’s Mind*, wholehearted activity is compared to a fire that burns completely and leaves no unnecessary trace\. This does not mean forgetting the past or pretending that painful events never happened\. It may mean allowing an experience to be fully felt, understood, and completed, rather than endlessly attaching ourselves to the residue it left behind\. How many experiences continue to consume us because they were never allowed to finish burning? Honest communication is a form of synchronization\. When our thoughts, emotions, bodies, and words communicate truthfully, they can begin to move together\. When they conceal information from one another, the result is internal contention: anxiety, exhaustion, confusion, and eventually burnout\. Parallel programming asks how many separate processors can work as one system without ceasing to be individual processors\. Zen seems to ask a similar question of human life\. Maybe our greatest limitation is not a lack of power, but power divided against itself\.\. ---