Big Red II

Getting started on Big Red II

Big Red II is Indiana University's main system for high-performance parallel computing. With a theoretical peak performance (Rpeak) of one thousand trillion floating-point operations per second (1 petaFLOPS) and a maximal achieved performance (Rmax) of 596.4 teraFLOPS, Big Red II is among the world's fastest research supercomputers. Owned and operated solely by IU, Big Red II is designed to accelerate discovery in a wide variety of fields, including medicine, physics, fine arts, and global climate research, and enable effective analysis of large, complex data sets (i.e., big data).

Big Red II is a Cray XE6/XK7 supercomputer with a hybrid architecture providing a total of 1,020 compute nodes:

  • 344 CPU-only compute nodes, each containing two AMD Opteron 16-core Abu Dhabi x86_64 CPUs and 64 GB of RAM
  • 676 CPU/GPU compute nodes, each containing one AMD Opteron 16-core Interlagos x86_64 CPU, one NVIDIA Tesla K20 GPU accelerator with a single Kepler GK110 GPU, and 32 GB of RAM

Big Red II runs a proprietary variant of Linux called Cray Linux Environment (CLE). In CLE, compute elements run a lightweight kernel called Compute Node Linux (CNL), and the service nodes run SUSE Enterprise Linux Server (SLES). All compute nodes are connected through the Cray Gemini interconnect.

Following is a selection of IU Knowledge Base documents to help you get started using Big Red II; for additional documentation, search the Knowledge Base. Also, see Supercomputing quick start guides.

On this page:

System overview

Accounts, access, and user policies

Programming environment

Running jobs

X forwarding and interactive jobs

Application-specific help

Getting help

Support for research computing systems and software at Indiana University is provided by various UITS Research Technologies units:

For general inquiries about UITS Research Technologies systems and services, complete and submit the Research Technologies request for help form.