While impressive, Oak Ridge is already replacing Titan with a new supercomputer named "Summit" (https://www.olcf.ornl.gov/summit/), which should be operational by 2018. The specification sheet (https://www.olcf.ornl.gov/wp-content/uploads/2014/11/Summit_FactSheet.pdf) claims that Summit will have "five times the computational power" with fewer nodes, 3,400 to Titan's 18,688, which seems to speak to efficiency. Their spec sheet mentions that data communication is a large overhead (similar to what we discussed in class) and that they are working to overcome this with new technology, seemingly on both the hardware and software perspectives.
While impressive, Oak Ridge is already replacing Titan with a new supercomputer named "Summit" (https://www.olcf.ornl.gov/summit/), which should be operational by 2018. The specification sheet (https://www.olcf.ornl.gov/wp-content/uploads/2014/11/Summit_FactSheet.pdf) claims that Summit will have "five times the computational power" with fewer nodes, 3,400 to Titan's 18,688, which seems to speak to efficiency. Their spec sheet mentions that data communication is a large overhead (similar to what we discussed in class) and that they are working to overcome this with new technology, seemingly on both the hardware and software perspectives.