computer science

NEC SX-ACE

NEC SX-ACE is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand NEC SX-ACE rather than just read about it. In short: The SX-ACE is a vector supercomputer based on the NEC SX series by NEC Corporation. It features NEC's first multi-core System on a Chip vector processor design, with four cores.

Key takeaways

NEC SX-ACE belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect NEC SX-ACE to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NEC SX-ACE from memory before moving on to harder problems.

Reference excerpt

The SX-ACE is a vector supercomputer based on the NEC SX series by NEC Corporation. It features NEC's first multi-core System on a Chip vector processor design, with four cores. The SX-ACE runs at 1 GHz, has peak performance of 64 GFLOPS per core, and has 64 gigabytes per second of memory bandwidth per core. Four cores make up a shared-memory node, and 64 nodes can fit in a rack for a total performance of 16 TFLOPS per rack. The SX-ACE was released in 2013. NEC released the successor, the SX-Aurora TSUBASA in 2017. It is used by Earth Simulator 3.

Illustrations

Worked examples

Example 1 — a first encounter with NEC SX-ACE

Start with the simplest possible case. Write down what NEC SX-ACE claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to NEC SX-ACE before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about NEC SX-ACE ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of NEC SX-ACE

In research: NEC SX-ACE appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses NEC SX-ACE in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: NEC SX-ACE is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer-related introductions in 2013, Computer hardware stubs, NEC supercomputers, so understanding it makes those chapters shorter.
In everyday life: Look for NEC SX-ACE outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study NEC SX-ACE in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NEC SX-ACE means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain NEC SX-ACE out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NEC SX-ACE in simple terms?

The SX-ACE is a vector supercomputer based on the NEC SX series by NEC Corporation. It features NEC's first multi-core System on a Chip vector processor design, with four cores.

Why does NEC SX-ACE matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study NEC SX-ACE?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on NEC SX-ACE.