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diff --git a/chapter/8/big-data.md b/chapter/8/big-data.md index d121180..55d6b12 100644 --- a/chapter/8/big-data.md +++ b/chapter/8/big-data.md @@ -194,6 +194,7 @@ In BSP model - Barrier synchronization synchs all the processors at the end of every superstep. - A notable feature of the model is the complete control on data through communication between every processor at every superstep. - Though similar to map reduce model, BSP preserves data in memory across supersteps and helps in reasoning iterative graph algorithms. + **Pregel** Pregel is an implementation of classic BSP model by Google (PageRank) to analyze large graphs exclusively. It was followed by open source implementations - Apache’s Giraph and Hama; which were BSP models built on top of Hadoop. |