I assume that by "InfoSphere" you mean what used to be called IBM InfoSphere Streams, but what is now just IBM Streams. I do research and development on IBM Str

I assume that by "InfoSphere" you mean what used to be called IBM InfoSphere Streams, but what is now just IBM Streams. I do research and development on IBM Streams (see a sibling comment), and I can say with certainty that it was designed as a distributed, parallel stream processing system from the start. It is a more general computing platform than CEP engines - in fact, we actually implemented a CEP engine as a Streams operator. Product documentation for the operator: https://www.ibm.com/support/knowledgecenter/SSCRJU_4.2.0/com.ibm.streams.toolkits.doc/spldoc/dita/tk$com.ibm.streams.cep/op$com.ibm.streams.cep$MatchRegex.html https://www.ibm.com/support/knowledgecenter/SSCRJU_4.2.0/com... Academic paper: Partition and Compose: Parallel Complex Event Processing. Martin Hirzel. DEBS 2012. http://hirzels.com/martin/papers/debs12-cep.pdf http://hirzels.com/martin/papers/debs12-cep.pdf