Hello everybody, welcome to the lecture Architectures of Supercomputers. I am very excited for two

reasons. First of all, this is the lecture with most students I had so far. It's been

increasing over the last years gradually. I think the first lecture was with just about

five or six students. I'm happy about that. It's also the first time that the lecture

actually gets recorded. I'm not sure if that's good because now I have to pay much more attention

about what I'm saying. As I said, I think it's a good thing and I'm excited about that.

I'm very sorry that the beginning was a bit confusing because of the construction works

in the Informatik Hochhaus. I hope that everything will be back to normal in about two weeks.

In this lecture, I would like to give you an overview of what to expect in the rest of

the term. I would like to try to equalize everybody's knowledge so we can start off

with the same foundation. May I ask you guys, who of you has heard in computer architecture

lecture? I'm happy that not everyone is showing his hand because the first part of the lecture

actually is a bit of computer architecture. As I said, I would like to give everyone the

same foundation. Let's start right off. Before we start with the actual content, I would

like to clarify some organizational matters. As you know, the lecture is on Tuesday. Currently

scheduled for 12.15. It would be good for me if we could shift this to 12 o'clock, but

it's not mandatory for me. Does anyone have a problem with starting at 12 o'clock? Goodbye

everyone.

We have a lecture until 11.45, so by the time we get there, it could be a five-minute series.

Then I'll start at 12.05. I'm always a bit worried because sometimes the lecture takes

longer than expected, and I need to catch my bus afterwards to get home in time. Most

of you may know that this is the link. I hope in the new room we'll have a better beamer.

I'm sorry that the contrast is not that good. This is the full link. It's probably a bit

too much to write down. If you go to tinyearl.com slash arcsub14, that should take you to our

homepage.

So that's going to be it.

Okay, this is the link to our lectures.

If you try Google, it should work out as well.

As you know, we'll have an exercises group.

In the exercises, we will do some programming exercises mostly,

mostly to try to see the same effects I've tried to present in the lecture in actual code.

My problem is that the exercise group is I think scheduled for Wednesday from 12 to 2 o'clock,

and I have another exercises group at the same time.

I'm not sure which optimization algorithm in the planning of our lectures decided it was good to expect from me

to teach two exercises simultaneously.

Yeah, but as I said, I don't think it will work out.

So I'd like to try to find a new date, a new time for the exercises to allow most of you to come.

Okay.

Okay, let me see.

This won't work because this is when we have the exercises.

This is where I have another exercise, and I think our original exercise was scheduled for this.

12 to 2.

12 to 2, okay.

So this is also where actually the other exercise is for computational engineering one.

So some of you have already heard that lecture.

May I ask you guys for a show of hands who could make it on Monday from 10 to 12?

Not too many.

Four, five.

Okay, 12 to 2.

Eight, okay, better.