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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
One of the world's highest performing plasma particle-in-cell kinetic simulation codes (and a past Gordon Bell Finalist), is written in C/C++. It's open source if you care to check it out. https://github.com/lanl/vpic
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