I will certainly gets dozens of downvotes for obvious fanboyism, but I'm prepared to take the heat.

For the doubters and the disbelievers that have been wondering what is the relevance of IBM in this day an age: this. This is what IBM is all about.

And it's not just about PFLOPS; each node has 1/2 terabyte of memory, globally addressable across the entire cluster using RDMA over Mellannox 200Gb/s EDR.

It's also P9: 44 cores per node; but most importantly each node drives a couple of V100 through NVlinks, which allows the GPU to share the system's main memory.