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This document was created to guide users through the compiling and execution of programs for Ruby's Phi coprocessors.  It is not intended to help determine which of the Phi usage models to use.  No special actions are needed for programs running exclusively on the host  For more general information on Ruby and its Phi coprocessors see our Ruby FAQ page.  Only Fortran, C, and C++ code can be compiled to run on the Phi coprocessors.  Code to be run on Ruby or the Xeon Phi coprocessors should be compiled on Ruby.

June 5th, 2014

10:00 a.m.: Coffee and Tea (BALE Conference)

10:15 a.m.: Committee Meetings

    Hardware and Operations (BALE Conference)

Glenn, Oakley

This document shows you how to set soft limits using ulimit command.

Glenn, Oakley



SIESTA is both a method and its computer program implementation, to perform efficient electronic structure calculations and ab initio molecular dynamics simulations of molecules and solids. More information can be found from here.

Glenn, Oakley

The April 2014 HPC Tech Talk (Tuesday, April 22th from 4-5PM) will provide some brief OSC updates, have a user-driven Q&A session, and will close with an invited talk about MPI-3 from the MVAPICH developers from The Ohio State University. To get the WebEX information and add a calendar entry, go here. Slides are available below.

On July 24th, 2014, OSC implemented changes to the Resource Unit (RU) calculation formula. Academic RU allocations are still fully subsidized by the State of Ohio.

Portland Group Compilers

The Portland Group, Inc. (a.k.a. PGI, is a premier supplier of software compilers and tools for parallel computing, known as PGI® products. The Portland Group offers optimizing parallel FORTRAN 2003, C99 and C++ compilers and tools for workstations, servers and clusters running Linux, MacOS or Windows operating systems. These products are available for OSC users across Ohio.

Intel Compilers, Tools, and Libraries

Intel Corporation (, well-known for hardware technology since introducing the world's first microprocessor in 1971, also produces an array of software development products which are available for OSC users across Ohio.