[fluxty]

Had to read your answer twice... "High latency???" But I see you consider 1-2us high latency. :P

It is an interesting question what people who don't have access to a supercomputer, but would like to learn and optimize for HPC-style distributed memory programming should use.

I've found AWS to be pretty nice, except there are no RDMA drivers for the elastic NIC and the BW is a bit low. (25Gbit vs. 100Gbit). For MPI bulk synchronous programs, it's probably a pretty close model, though.

[laumars]

> Had to read your answer twice... "High latency???" But I see you consider 1-2us high latency. :P

Relative to accessing the hardware resources on a host, it very much is. Just as accessing the RAM is slow relative to accessing the L2 cache on a CPU