Single-node partitioned-memory for huge graph analytics: cost and performance trade-offs

Because of cost, non-volatile memory NVDIMMs such as Intel Optane are attractive in single-node big-memory systems. We evaluate performance and cost trade-offs when using Optane as volatile memory for huge-graph analytics. We study two scalable graph applications with different work locality, access patterns, and parallelism. We evaluate single and partitioned address spaces---Memory and AppDirect modes---and compare with distributed executions on GPU-accelerated and CPU-based supercomputers.