“I have no hesitation at all in recommending Paul as a CTO coach. I sought him out to help with an apparently disparate and confusing set of problems and in the space of two phone calls he provided much-needed clarity and had astutely identified a few foundational areas for our work. Over our subsequent weekly meetings he offered regular actionable feedback based on his wealth of experience and an uncanny appreciation for the whole system. At every point I felt he was thinking deeply about the specific circumstances I was describing. He was confidence inspiring and confidence building, kind and reassuring but ready with provocative nudges (and a surprising diversity of book recommendations!) when necessary.”
About
I provide…
Experience & Education
Publications
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Seven Concurrency Models in Seven Weeks: When Threads Unravel
Pragmatic Bookshelf
Your software needs to leverage multiple cores, handle thousands of users and terabytes of data, and continue working in the face of both hardware and software failure. Concurrency and parallelism are the keys, and Seven Concurrency Models in Seven Weeks equips you for this new world. See how emerging technologies such as actors and functional programming address issues with traditional threads and locks development. Learn how to exploit the parallelism in your computer’s GPU and leverage…
Your software needs to leverage multiple cores, handle thousands of users and terabytes of data, and continue working in the face of both hardware and software failure. Concurrency and parallelism are the keys, and Seven Concurrency Models in Seven Weeks equips you for this new world. See how emerging technologies such as actors and functional programming address issues with traditional threads and locks development. Learn how to exploit the parallelism in your computer’s GPU and leverage clusters of machines with MapReduce and Stream Processing. And do it all with the confidence that comes from using tools that help you write crystal clear, high-quality code.
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Great Expectations: Better Testing Through DSLs with Ruby and Scala
PragPub
Improve your tests with custom expectations
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Forgive and Remember: Learning from Your Mistakes without Blame
PragPub
Some advice to make debugging a learning experience.
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Debug It!: Find, Repair, and Prevent Bugs in Your Code
Pragmatic Bookshelf
Debug It! will equip you with the tools, techniques, and approaches to help you tackle any bug with confidence. These secrets of professional debugging illuminate every stage of the bug life cycle, from constructing software that makes debugging easy; through bug detection, reproduction, and diagnosis; to rolling out your eventual fix.
Whether you’re writing Java or assembly language, targeting servers or embedded micro- controllers, or using agile or traditional approaches, the same…Debug It! will equip you with the tools, techniques, and approaches to help you tackle any bug with confidence. These secrets of professional debugging illuminate every stage of the bug life cycle, from constructing software that makes debugging easy; through bug detection, reproduction, and diagnosis; to rolling out your eventual fix.
Whether you’re writing Java or assembly language, targeting servers or embedded micro- controllers, or using agile or traditional approaches, the same basic bug-fixing principles apply.
You’ll learn an empirical approach that leverages your software’s unique ability to show you what’s really happening, the importance of finding a reliable and convenient means of reproducing a bug, and how to avoid common pitfalls. You’ll see how to use commonly available tools to automatically detect problems before they’re reported by customers. You’ll construct “self-debugging” software that automatically provides access to crucial internal information and identifies the broken assumptions that lead to bugs. -
Extending JScript
Dr Dobbs
Paul extends Microsoft's JScript scripting engine by adding support for constructors and arrays. In the process, he presents JScriptTest, a program that displays a UI that lets you type and execute JScript source.
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Global Synchronisation in Linda
Concurrency: Practice and Experience
This paper examines the "Distributed Summation" problem, and its solution in Linda. A number of problems with the current set of primitives are examined, and a new primitive, collect, is proposed.
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A behavioural semantics for Linda-2
IEE Software Engineering Journal
Presents a behavioural semantics for the language Linda, written in the specification language Z. The language defined is the dialect commonly referred to as Linda-2. Linda is a co-ordination language, and therefore has to be embedded in a computation language in order to produce a full parallel language. This specification attempts to be (as far as is possible) base language-independent, i.e. as few assumptions as possible are made about the computation language. The author does, however, make…
Presents a behavioural semantics for the language Linda, written in the specification language Z. The language defined is the dialect commonly referred to as Linda-2. Linda is a co-ordination language, and therefore has to be embedded in a computation language in order to produce a full parallel language. This specification attempts to be (as far as is possible) base language-independent, i.e. as few assumptions as possible are made about the computation language. The author does, however, make some assumptions, in particular that the language is typed. He assumes no knowledge of Linda, but an understanding of Z (or, at least, set theory and predicate calculus) is assumed
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