Comments (1)
Yes, this is correct. Zone maps are a bit like indexes. Alenka checks if a segments mix and max column values fall within a filter expression. This way we can skip entire segments. And yes, often it requires sorting data based on filter columns.
About the speed of CPU and GPU operations - I believe that many operations are faster on a GPU even when taking into consideration the cost of data transfers and decompression.
from alenka.
Related Issues (20)
- Device Errors HOT 5
- Loading error HOT 2
- Alenka unable to find a table HOT 1
- trivial_copy_n: an illegal memory access was encountered HOT 14
- Project license? HOT 2
- What is the syntax for appending data into a table? HOT 1
- Data partitioning architecture HOT 12
- OpenCL port HOT 4
- Compilation on Windows HOT 2
- Generic Interface for Storage Behavior Layout HOT 1
- Compilation time very long HOT 4
- Benchmarking HOT 3
- License? HOT 1
- Compile problem for strings_sort_device.cu HOT 4
- Is this project live? HOT 1
- Out of memory error HOT 3
- Compile problem HOT 1
- Hardware spec HOT 4
- Case sensitive columns HOT 1
- mgpu::cuda_exception_t "Invalid device function" exception HOT 6
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. ๐๐๐
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google โค๏ธ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from alenka.