System, Method, and Computer Program Product for Efficient Aggregation of Data Records of Big Data

A computerized method, system, and computer program product can allow for processing by a processor data records (xDRs). The method can include receiving by the processor xDRs, each xDR including a vector of unique data fields, the xDRs forming together a stream. The stream can be stored by the processor in a memory of a general purpose graphic processor unit (GPGPU). An index vector of xDRs can be created by the processor, wherein each xDR is assigned a unique index identifier, and stored by the processor in a memory of the GPGPU. The index vector of xDRs is sorted with respect to at least a key of at least a unique data element selected. The sorted index vector can be stored in the memory of the GPGPU. A selection of at least the unique data field can be performed and aggregation of the stream performed with respect to the selection.