Tesla is not Nvidia’s only HPC processor




Graphics processor firm Nvidia sees a big opportunity for its GPUs in high performance computing (HPC), sometimes referred to as supercomputing.

not have the programmable flexibility of CPUs.

Maybe a decade ago research showed that by using many GPUs in a low latency (ie with high speed interconnect) it was possible to create a powerful number-crunching supercomputer for a fraction of the cost of bespoke HPC hardware.Tesla is not Nvidia’s only HPC processor

Nvidia has seized the opportunity. It designed a new type of high-end GPU called Tesla, which was good at being cascaded in an HPC array.

Part of the Tesla Accelerated Computing Platform, K80 dual-GPU accelerator is designed for number-crunching operations such as machine learning, data analytics, and scientific computing – collectively known as HPC.

In Tesla there are two GPUs per board with 12Gbyte of GDDR5 memory each (12Gbyte/board). Memory bandwidth is 480Gbyte/s.

There are 4,992 CUDA parallel processing cores.

But Nvidia is not only relying on Tesla for its HPC strategy. It has a plan to create an HPC from 2,000 Tegra K1 mobile processors.

Nvidia is working with IDT and Orange Silicon Valley to develop a scalable, low-latency cluster Tegra K1 mobile processors using RapidIO interconnect to create 16Gbit/s data interfaces between processor nodes.

There will be 60 processor nodes on a 19-inch 1U board, with more than 2,000 nodes in a rack.

This can provide computing power of up to 23Tflops per 1U server, or greater than 800Tflops of computing per rack.

This is twice the computing density of the largest supercomputer, Tianhe-2 in China.

 

For more detail: Tesla is not Nvidia’s only HPC processor




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