Parallel Processing

Big Data Results

I wanted to revisit the taxi data example that I previously blogged about. I had a 6GB file of 16 million taxi pickup locations and 260...

GIS Analysis of Overlapping Layers

Sure you can solve it with a few for loops, inserting the results into a new table, but that really is a hassle. Also, I have to do it...

QGIS GPU Processing Update

Today my students got to present some of their work at the Maryland Geographic Information Committee Quarterly meeting. On Monday we...

More QGIS/GPU progress – it’s getting faster…

This summer I am working with three talented undergraduates as part of a National Science Foundation (NSF) program called Research...

Parallel Processing with QGIS

Once again, I am continuing my role as a mentor in a National Science Foundation (NSF) Research Experience for Undergraduate program....

From days to seconds: experiences with parallel processing and GIS (Part I, the team)

Many of you know that I have been working with parallel processing for GIS in the form of video card general purpose, graphical...

When More is Less…. lessons from processing large data files

My good friend Stuart Hamilton gave me a fun conundrum to try out. He has a file of province boundaries (400 areas) and lidar derived...

Another Radian Test – Finding the distance between lines and areas

Following up on my previous post with ArcGIS and the Near Table, I created an SQL query in Manifold 8 to do both the near distances and...

Testing Manifold Systems, Ltd. Experimental Parallel Processing Engine (Radian) – along with s

A Poor Man’s Parallel Processor for GIS

In addition to SQL, I also am interested in processing large volumes of spatial data. One of the newest rages in “big data” is Hadoop....