Pregel is a system for large-scale graph processing that was developed by Google. It provides a scalable and fault-tolerant platform for graph algorithms using the bulk synchronous parallel (BSP) model. In Pregel, computation is expressed as a series of iterations called supersteps where each vertex performs computation and sends messages to other vertices. This vertex-centric approach allows graph algorithms to be naturally expressed by focusing on local operations. Pregel was designed for scalability across thousands of machines and provides features like checkpointing and recovery for fault tolerance. It has been used for applications such as PageRank, shortest paths, and clustering on large graphs with billions of vertices and edges.
Pentaho Data Integration. Preparing and blending data from any source for analytics. Thus, enabling data-driven decision making. Application for education, specially, academic and learning analytics.
Raspberry PI using Linux. But it is easy to use who does not know Linux. So sometimes Raspberry PI is dangerous. We propose for industry, TOPPERS/SSP is the just you use. If some spec are too small, please try to use TOPPERS/ASP, TOPPERS/HRP2 or TOPPERS/ATK2. We use HAZOP and TRIZ for safety and security analysis.
Raspberry PI using Linux. But it is easy to use who does not know Linux. So sometimes Raspberry PI is dangerous. We propose for industry, TOPPERS/SSP is the just you use. If some spec are too small, please try to use TOPPERS/ASP, TOPPERS/HRP2 or TOPPERS/ATK2. We use HAZOP and TRIZ for safety and security analysis.
3. Green-Marlとは
? A key benefit of PGX is that you may implement algorithms
with no limit. You can easily add your own algorithms using
Green-Marl, a domain-specific language designed for graph
algorithms.
https://docs.oracle.com/cd/E56133_01/2.2.1/tutorials/compile.html
? G. Malewicz et al, "Pregel: A System for Large Scale Graph
Processing", SIGMOD 2010.
? DSL for graph (data analysis). Spark GraphX
? The Green-Marl Language Specification (June 18, 2015)
4. S Hong, H Chafi, E Sedlar, K Olukotun - ACM SIGARCH Computer Architecture News, 2012