Last call to make your voice heard! Our 2022 Developer Survey closes in less than a week. Take survey.

Questions tagged [cache-oblivious]

Cache-oblivious algorithms perform within a constant factor of the least possible number of memory transfers. They are analyzed on the ideal-cache model which assumes no knowledge of the parameters of the memory hierarchy.

Filter by
Sorted by
Tagged with
1 vote
1 answer
132 views

Practical Data-oblivious Compaction?

Compaction is a particularly weak form of sorting. The problem can be phrased as follows: Given an array $A$ of $N$ cells, with at most $R$ of the cells distinguished (say by a bit), produce an array ...
user avatar
  • 778
2 votes
0 answers
149 views

Hashtable vs cache-oblivious [closed]

I'd like to know more about real performances of data structures, in particular two families attract my interests: hash tables cache oblivious My researches didn't find any "comprehensive" (let me ...
user avatar
  • 185
4 votes
2 answers
232 views

Ordered-file maintenance

I am studying the Advanced Data Structures material and I'd like to implement the Ordered-file maintenance data structure. I have few questions in order to start. The papers rely on a static view, ...
user avatar
  • 185
3 votes
2 answers
209 views

Extended version of the paper "Consistent Hashing and Random Trees" with proofs

I've been reading the following paper: David Karger, Eric Lehman, Tom Leighton, Rina Panigrahy, Mathew Levine, Daniel Lewin, "Consistent Hashing and Random Trees: Distributed Caching Protocols for ...
user avatar
  • 141
15 votes
2 answers
607 views

Exponential Speedup in External Memory

Background The external memory, or DAM model, defines the cost of an algorithm by the number of I/Os it performs (essentially, the number of cache misses). These running times are generally given in ...
user avatar
  • 1,427
9 votes
2 answers
323 views

Starting point for cache-oblivious algorithms?

I'm interesting in learning more about cache-oblivious algorithms and data structures, but there are so many papers out there that I honestly don't know where to start. I've found Prokup's original ...
user avatar
6 votes
1 answer
299 views

Simple and cache-oblivious tries on fixed-length strings

Is there a simple and cache-oblivious data structure that solves the dynamic predecessor problem for strings of length exactly $k$ over an alphabet $A$ in worst-case $O((k\log A)/B + \log n)$ memory ...
user avatar
  • 11k