Just in Time for the Holidays: Give The Gift of Cray

The name Cray, as in [Seymour Cray] is synonymous with supercomputing. If you hurry, you can bid on a Cray J90/J916 on eBay. You might want to think about where to put it though. It is mounted on a trailer, requires 480V, and the shipping is $3,000!

First introduced in 1994, the J90 was an “entry level” machine. This particular machine supported up to 16 CPUs (each CPU was actually two chips) running at a blazing 100 MHz. The memory system was more impressive, achieving 48 GB/s.

The Cray T90 computer was much faster (and more expensive) but none of …read more

Continue reading Just in Time for the Holidays: Give The Gift of Cray

China develops the World’s Most Powerful Supercomputer without US chips

China beats its own record with the World’s fastest supercomputer.

Sunway TaihuLight, a newly built supercomputer from China, now ranks as the world’s most powerful machine.

During the International Supercomputer Conference in Germany on Monday, Top5… Continue reading China develops the World’s Most Powerful Supercomputer without US chips

Designing a High Performance Parallel Personal Cluster

Kristina Kapanova is a PhD student at the Bulgarian Academy of Sciences. Her research is taking her to simulations of quantum effects in semiconductor devices, but this field of study requires a supercomputer for billions of calculations. The college had a proper supercomputer, and was getting a new one, but for a while, Kristina and her fellow ramen-eating colleagues were without a big box of computing. To solve this problem, Kristina built her own supercomputer from off-the-shelf ARM boards.

Because of the demands of a supercomputer – namely the amount of RAM and pure processing speed – Raspberry Pis and …read more

Continue reading Designing a High Performance Parallel Personal Cluster