From 87c22808ee61ecae36afc12be551201a361473ad Mon Sep 17 00:00:00 2001 From: Jim Blandy Date: Thu, 28 Dec 2017 01:45:55 -0800 Subject: [PATCH] Fix links in README.md. --- README.md | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/README.md b/README.md index 165c3e1..a3cb783 100644 --- a/README.md +++ b/README.md @@ -4,18 +4,18 @@ This program plots the Mandelbrot set and writes it out as a PNG file. It uses R Different commits show different implementation strategies: -* [Branch `single-threaded`](https://github.com/jorendorff/rust-mandelbrot/blob/single-threaded/src/main.rs) +* [Branch `single-threaded`](https://github.com/ProgrammingRust/mandelbrot/tree/single-threaded) is the base version of the program. It does all the work on the main thread. -* [Branch `bands`](https://github.com/jorendorff/rust-mandelbrot/commit/bands) +* [Branch `bands`](https://github.com/ProgrammingRust/mandelbrot/tree/bands) splits the plotting area up into eight bands, and assigns one thread to each. This often makes poor use of the threads, because some bands take significantly longer than others to complete: once a fast thread completes its band, its CPU goes idle while its less fortunate brethren are still hard at work. -* [Branch `task-queue`](https://github.com/jorendorff/rust-mandelbrot/commit/task-queue) +* [Branch `task-queue`](https://github.com/ProgrammingRust/mandelbrot/tree/task-queue) gets an almost perfect linear speedup from its threads. It splits the plotting area up into many more bands, and then has threads draw bands from a common pool until the pool is empty. When a thread @@ -23,7 +23,7 @@ Different commits show different implementation strategies: take different amounts of time to render, the problem cited above still occurs, but on a much smaller scale. -* [Branch `lockfree`](https://github.com/jorendorff/rust-mandelbrot/commit/lockfree) +* [Branch `lockfree`](https://github.com/ProgrammingRust/mandelbrot/tree/lockfree) uses Rust's atomic types to implement a lock-free iterator type, and uses that to dole out bands from the pool instead of a mutex-protected count. On Linux, this is no faster than the @@ -31,7 +31,7 @@ Different commits show different implementation strategies: and unlocking an uncontended mutex *is* simply a pair of atomic operations. -* [Branch `rayon`](https://github.com/jorendorff/rust-mandelbrot/commit/rayon) +* [Branch `rayon`](https://github.com/ProgrammingRust/mandelbrot/tree/rayon) uses the Rayon library instead of Crossbeam. Rayon provides a *parallel iterator* API that makes our code much simpler. It looks a lot like Rust code that uses plain old iterators.