Amazon Web Services launches Nvidia Ampere-powered instances

Amazon Web Services (AWS) has announced the general availability of a new GPU-powered instance called Amazon P4d that is based on Nvidia’s new Ampere architecture, and the two firms are making big performance claims.

AWS has offered GPU-powered instances for a decade now, the most current generation called P3. AWS and Nvidia are both claiming that P4d instances offer three times faster performance, up to 60% lower cost, and 2.5 times more GPU memory for machine learning training and high-performance computing workloads when compared to P3 instances.

The instances reduce the time to train machine-learning models by up to three times with FP16 and up to six times with TF32 compared to the default FP32 precision, according to Nvidia, but can also enable training larger, more complex models.

These are some heavyweight instances, too. P4d instances with eight Nvidia A100 GPUs are capable of up to 2.5 petaflops of mixed-precision performance and 320GB of high-bandwidth GPU memory in one EC2 instance. AWS said P4d instances are the first to offer 400 Gbps network bandwidth with Elastic Fabric Adapter (EFA) and Nvidia GPUDirect RDMA network interfaces to enable direct communication between GPUs across servers for lower latency and higher scaling efficiency.

Each P4d instance also offers 96 Intel Xeon Scalable (Cascade Lake) vCPUs, 1.1TB of system memory, and 8TB of local NVMe storage to reduce single-node training times. By more than doubling the performance of previous generation of P3 instances, P4d instances can lower the cost to train machine learning models by up to 60%.

“As data becomes more abundant, customers are training models with millions and sometimes billions of parameters, like those used for natural language processing for document summarization and question answering, object detection and classification for autonomous vehicles, image classification for large-scale content moderation, recommendation engines for e-commerce websites, and ranking algorithms for intelligent search engines—all of which require increasing network throughput and GPU memory,” AWS said in a statement.