Would you expect a 400 Hz generator to be larger or smaller than a 60hz generator of the same power and voltage rating Why?
A generator is a generalized type of transformer. So, at high frequency, and same magnetic flux (peak), you can reduce area, and total volume of magnetic circuit, the 400 Hz generator is significantly smaller.
How fast is Cray 2?
1.9 GFLOPS
At 1.9 GFLOPS peak performance, it was the fastest machine in the world when it was released, replacing the Cray X-MP in that spot. It was, in turn, replaced in that spot by the Cray Y-MP in 1988. The Cray-2 was the first of Seymour Cray’s designs to successfully use multiple CPUs.
How much RAM does fugaku have?
Node
| Architecture | Armv8.2-A SVE 512 bit With the following Fujitsu’s extensions: Hardware barrier, Sector cache, and Prefetch |
|---|---|
| Memory | HBM2 32 GiB, 1024 GB/s |
| Interconnect | Tofu Interconnect D (28 Gbps x 2 lane x 10 port) |
| I/O | PCIe Gen3 x16 |
| Technology | 7nm FinFET |
How fast is a Cray supercomputer?
Cray-1 clock speed was 12.5 ns (80 Mhz), and almost all the logic was implemented using one type of ECL NAND gate. Instructions were 16 or 32 bits wide, operating on 24-bit addresses and 64-bit integer and floating point numbers.
Why is the aviation industry operates on 400 Hz power-FCX?
As AC became more prevalent in aircraft, the primary concern was the size and weight of transformers, motors and power supplies. The idea was proposed to use a higher frequency to make the components lighter, since the length of power transmission was small, the increased power loss would be negligent.
Why was the Cray 2 memory system made?
In order to address this internal threat, as well as a series of newer Japanese Cray-1-like machines, the Cray-2 memory system was dramatically improved, both in size as well as the number of “pipes” into the processors.
When did Seymour Cray replace the Cray Y-MP?
It was, in turn, replaced in that spot by the Cray Y-MP in 1988. The Cray-2 was the first of Seymour Cray ‘s designs to successfully use multiple CPUs.
Why was the Cray 2 cooler called Waterfall?
The unique “waterfall” cooler system came to represent high-performance computing in the public eye and was found in many informational films and as a movie prop for some time. Unlike the original Cray-1, the Cray-2 had difficulties delivering peak performance.
https://www.youtube.com/watch?v=RxRiWTZ8fzo