Enabled by Cluster family of EC2 instances, which includes:
- Cluster Compute instances: cc1.4xlarge,cc2.8xlarge
- Cluster GPU instances : cg1.4xlarge
- New c3.large, c3.xlarge, c3.2xlarge, c3.4xlarge and c3.8xlarge
- 10 Gbps Ethernet
- Latency and bandwidth about 10X better than “EC2 Classic”
- Uses jumbo frames between cluster instances
- New EC2 API: Placement Groups. A placement group is a logical cluster
Because HPC instance types have 10 Gbps networks, using 20 volumes attached to an HPC instance you can achieve in the neighborhood of 100 IOPS using 4K PIOPS volumes.
http://www.awsps.com.s3.amazonaws.com/training/computefest/AWS-HPC-BigData-Computefest.pdf
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