The Pipeline or Producer-Consumer Model

In the pipeline model, a stream of data is passed on through a succession of processes, each of which perform some task on it. This simultaneous execution of different programs on a data stream is called stream parallelism. With the exception of the process initiating the pipeline, the arrival of new data triggers the execution of a new task by a process in the pipeline. Each process in the pipeline can be viewed as a consumer of a sequence of data items for the process preceding it in the pipeline and as a producer of data for the process following it in the pipeline.

Hybrid Models

In some cases, more than one model may be applicable to the problem at hand, resulting in a hybrid algorithm model. A hybrid model may be composed either of multiple models applied hierarchically or multiple models applied sequentially to different phases of a parallel algorithm.

3.3 Copy out:

a) key words from every paragraph of the text

b) sentences that convey the main idea of every paragraph.

3.4 Retell the text in your own words using the key words and sentences.

3.5. Working in pairs make up sentences using the expressions below.

I want to make it quite clear that…

I hope I’ve made myself clear…

I believe I’ve made myself clear when I said that…

I must emphasize that…

I want to underline the fact that…

There’s no doubt that…

Let’s get it straight.

I don’t want to leave anyone in any doubt about the fact that…

Everybody should know by now that…

I’d like to return to the previous point…

I’d like to talk about smth that was mentioned earlier…

I’d like to get back to smth that came up earlier in our discussion…

Let’s get back to the original point…

We seem to be getting off the point…

We could return to the question later…

It would be useful to summarize what we’ve said so far.

I can’t answer that.

I’d rather not answer that, if you don’t mind.

I have no idea, I am afraid.

I’m sorry I can’t give you the exact data off-hand.

I need some time to think about it.

Could I say something on that point?

Can I just say something here?

Excuse me, but could I just say something?

Could I just correct one small detail?

May I add something to that?

If I might just add something to what has just been said?

Do you mind if I just interrupt?

If I could just interrupt a moment?

Certainly. Please do. Yes, of course.

Go ahead. Sure.

If you could just allow me to finish…

Just let me finish.

One moment, please.

3.6. Make up a short conversation using the composed sentences. Work in pairs.

Lesson 4

4.1. Listen to the text and say what continuation can be in this article: