Ethereum contract execution

Question

If I write a Ethereum contract something like this (taken from https://solidity.readthedocs.io/en/develop/introduction-to-smart-contracts.html)

pragma solidity ^0.4.0;

contract SimpleStorage {

uint storedData;
function set(uint x) {
    storedData = x;
}

function get() constant returns (uint) {
    return storedData;
} }

if someone called the "set" operation, would it be executed 30 time ( assuming 30 nodes are supporting blockchain, at that point in time). Appreciate confirmation one way or other.

( I know similary question is already been asked, though that is not very clear for me atleast, neither I am able to add comment to that question, hence creating new one)

Answer 1

Suppose someone sends a transaction, set(10);

Generally speaking, each miner will run the function to assess the result and possibly include it in a block.

After it's mined, each full node will run the function to assess the result.

At the end of this process, the nodes will be in agreement about their independent conclusions about the result of the transaction.

Hope it helps.