post sobre sustentabilidad de transporte en grandes ciudades

Interesante post sobre sustentabilidad de transporte en grandes ciudades

http://mexicoparalosmexicanos.blogspot.com/2011/08/autopistas-urbanas-su-historia-y.html

master/worker pattern

• A master UE sets up a pool of workers process/threads and a bag of tasks. (Workers are like UE)

• Workers process concurrently tasks from the bag

Each worker continues processing, until all tasks have been processed or some other condition has been reached. In some implementations no explicit master is present.

- It is suitable for non-deterministic execution time of tasks.

- It is used when tasks should be distributed among workers.

- Since creating and terminating processes/threads is expensive workers should be reused.

- Not applicable when tasks are interdependent.

- Usually the number of tasks exceeds the number of UEs.

- Usually number of workers <= PE.

How tasks are assigned to workers?

in Japan the future is behind or in front?

Mae (前) in Japanese menas in front but also means ago, thus is used to refer events in the past as well to point that something is front….

At the beginning this didn’t make sense to me, despite the fact that I am Western person: the past is behind, it already passed; the future is in front, it is coming. Japanese people seems to be confused with this fact, they agree that future is in the front because it is coming but they also say that the past is in the front “in front,前 “…that is not congruent right?. How is possible that both the past and the future are on front….seems like Japanese people have not thought about this until the question arises.

Well if thinking of 前 as Latin “prae” everything makes sense (except for the point that, both present and future being in front), prae means before, but also means in front.

Prae and 前 both refer to spatial dimension: in front, and temporal dimension: before.

Solved