Skip to main content

All Questions

Filter by
Sorted by
Tagged with
2 votes
1 answer
85 views

Multithreaded Merge Sort Using ForkJoin Framework

I've implemented a multithreaded merge sort using Java's ForkJoin framework, and I wanted to gather feedback on its correctness, efficiency, and scalability. Here's my implementation: ...
Akash Gupta's user avatar
5 votes
1 answer
1k views

Multi-threaded in-place Mergesort on Java

What is an efficient way to implement the Mergesort algorithm in Java such that it meets the following criteria: Must be multi-threaded. Must retain the Mergesort time complexities. Must be in-place ...
Jeffrey Phillips Freeman's user avatar
2 votes
1 answer
85 views

Parallel curvesort in Java

What? I have designed curvesort, an algorithm that adapts to "smoothness" of data. For example, if the data resembles a sine wave, it is likely that curvesort will sort it fast. This post is about a ...
coderodde's user avatar
  • 31k
5 votes
1 answer
9k views

Parallel merge sort in Java

I have rolled my own parallel merge sort. My performance figures are as follows: Seed: 1457521330571 java.util.Arrays.sort() in 6840 ms. Sorted: true java.util.Arrays.parallelSort() 3777 ms. Sorted: ...
coderodde's user avatar
  • 31k
3 votes
1 answer
1k views

Parallel MSD radix sort in Java

I have this parallel implementation of MSD radix sort, which processes the entries by one particular byte. At each byte index, it has three phases: Count the bucket sizes. Insert each entry to its ...
coderodde's user avatar
  • 31k