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Introduction to week 4

Introduction to week 4
1.1
Welcome to week 4 of Fortran for Scientific Computing. This week we’ll talk a little bit about software engineering aspects of scientific computing. So best practises in coding, writing documentation, that kind of thing. But most importantly, we’ll talk about performance. What determines the performance of an application? How do you measure it? And, how does your programming style influence performance? How can you programme in such a way that you get fast running code? This should be pretty interesting for HPC people, so enjoy.

In this week you will learn about best practices for programming. You will also see how you can document your code, and generate nice-looking HTML or PDF.

Performance is of course very important in scientific computing and you will learn about various aspects that influence the runtime efficiency of an application. Vectorization and caches will be discussed.

You will also learn how to use a profiler to identify the hotspots in your application, so that you know what to concentrate on when you try to improve the efficiency.

Finally, as mentioned in a previous week, file I/O is an important aspect of the overall performance of scientific computations, so you will learn about more efficient ways to read and write your data to files.

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Fortran for Scientific Computing

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