Embedded Supercomputing[1] (EmbSup) a relatively new solution which targets fine grain and coarse grain parallelism altogether. This combination thought to be a best way for exploiting fine and coarse grain parallelism by targeting fine grain parallelism towards FPGAs and coarse grained parallelism towards super computers or clusters.
Basically Embedded Supercomputing is a hybrid network of CPU and FPGA hardware, where FPGA acts as external co-processor to CPU. However, this programming model is still evolving and has many challenges.
Original source: https://en.wikipedia.org/wiki/Embedded Supercomputing.
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