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Using NVMe Block Storage to Optimize HPC (High Performance Computing) Storage for AI Workloads

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Using NVMe Block Storage to Optimize HPC (High Performance Computing) Storage for AI Workloads

It is becoming increasingly important to efficiently orchestrate HPC (High Performance Computing) storage for AI workloads. Artificial Intelligence has blown up and is being used in virtually every industry to push the boundaries of what is possible. 

High-Performance AI Workloads Are Pervasive

AI is advancing healthcare, for example through clinical decision support systems to help prevent stroke. It’s being used in agriculture to enable precision farming and help farmers produce more food, for example through smart drones that water only the parts of a farm that need watering. In finance, guys in suits are using AI to predict the performance of markets and make a lot of money in the process. 

AI has found uses in marketing, banking, gaming, space exploration, autonomous vehicles, and chatbots among other industries. 

All these AI applications are being fuelled by data, and in massive amounts. For instance, consider web intelligence. Companies are using AI-powered solutions to monitor the entire internet in real-time, including the deep web, and keep abreast of all events related to their brand. That way, if a hacker successfully steals their data and attempts to sell it on the dark web, the company will be notified immediately and take action to mitigate damage. 

For that to happen, streams of data from multiple internet sources have to be collated and analyzed quickly. This is the case in other applications as well. 

Fortunately, current processing power can handle such compute-intensive workloads. 

GPUs in Artificial Intelligence 

The effective application of artificial intelligence is dependent on having the right hardware, without which you’ll be limited, frustratingly so. Hardware providers are equipping modern servers with advanced processing, and legacy hardware is being upgraded with chipsets. 

AI needs fast processing. The faster the processing speed, the more the algorithms and processes that can run simultaneously, and the more use we can get from AI-powered systems. 

When it comes to fast processing, nothing fits the bill like a graphics processing unit. (GPU)

GPUs, which were originally used in gaming for graphics rendering, are now being used in conjunction with CPUs to handle AI workloads. A GPU is able to manage huge amounts of data and with the ability to process thousands of threads simultaneously, can execute operations at an advanced speed. 

GPUs excel in pattern matching, content analysis, and image recognition, all of which are essential in today’s AI workloads. 

However, even with the advanced computational capability made possible by GPUs, organizations have been struggling to make the most of them. 

Achieving Optimal ROI With GPUs Has Been a Challenge

The success of modern AI applications is contingent on the ability to process huge amounts of collected and simulated data in the shortest time possible. For such high-performance computing, GPU-based systems have become the go-to setup. 

However, GPUs are incredibly data-hungry, with some being able to process up to 16Gb per second. Traditional storage solutions are incapable of servicing the massive data appetite of GPUs. Bandwidth limitations lead to lower throughput in terms of data transfer. If you can’t get enough data to the GPU, then you can’t maximize its potential and you’ll have a problem with ROI. 

To efficiently utilize GPUs and unleash their potential for AI workloads, more efficient storage and data transfer solutions have to be put in place. Using NVMe storage is one such solution. 

What is NVMe Storage?

NVMe is a storage access protocol that unlocks the potential of SSD storage and the PCIe interface. SSD storage involves the electronic storage of data, as opposed to traditional HDD storage, which stores data sequentially on magnetic disks. SSD enables fast retrieval and storage of data, as there is no sequential access. 

The PCIe interface allows more data to be transferred at a time. Together, SSD and PCIe, used in conjunction with the NVMe protocol, result in faster data transfer, higher throughput, and lower latency. Such a setup is perfect for data-hungry AI applications on a local device. 

However, at the network level, with traditional data transfer mechanisms, the benefits of NVMe are lost. 

To enjoy the speed and performance of local NVMe at the network level, software-defined NVMe block storage has to be implemented. 

NVMe Block Storage 

This is a software-defined solution that aggregates multiple NVMe units across a network, combining them into one block of virtual storage. One of the benefits of this is that it increases the storage available to any AI application. The alternative would be for an NVMe unit to only be dependent on the resources in one node. 

Such a solution is appropriate as AI applications usually run on networked devices. The data being processed is not necessarily generated at the node that’s processing it. Using block NVMe makes it possible to enjoy the speed and performance of local NVMe at the network level. This results in much better performance than traditional alternatives. For example, “CPU tax” is not imposed and memory can be accessed directly, significantly reducing latency. 

By helping eliminate storage and compute overhead, this block storage solution results in huge gains for data processing ability.

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