From any ARC login node, you can explore how to use ARC software by checking the directory /opt/examples
Details on the examples directory are in
https://198.82.212.30/userguide/examples/
All posts by John Vetter Burkardt
Treat Fortran “real” variables as double precision
The gfortran, ifort, and pgf90 compilers can be instructed that variables declared as "real" should actually be stored and handled as double precision quantities. Details are at https://198.82.212.30/userguide/fortran_realsize/
Parallel COMSOL
A COMSOL batch job can run in parallel, using multiple nodes or processors. Information on how to automatically set the appropriate COMSOL command line parameters for parallel execution is available, including an example script, athttps://secure.hosting.vt.edu/www.arc.vt.edu/userguide/comsol/.
Spring 2018 ARC Workshops and Tutorials
ARC will offer many free classes on scientific computing, sponsored by Network Learning Initiatives (NLI) and held in room 1100 Torgersen. NLI encourages you to register for these classes through their web site https://nli.tlos.vt.edu, but unregistered auditors are welcome to sit in.
For a list of dates, times, and titles for the classes, refer to
https://secure.hosting.vt.edu/www.arc.vt.edu/userguide/spring-2018-arc-workshops-and-tutorials/
Get an ARC Account for Your Class
Instructors who wish to introduce their class to high performance computing are welcome to request a class account.
The process for BlueRidge, Cascades, DragonsTooth and NewRiver, is described in https://secure.hosting.vt.edu/www.arc.vt.edu/userguide/get-an-arc-account-for-your-class/ .
Class Accounts on Huckleberry
Instructors interested in arranging access to Huckleberry for their students can find out how to get a class account at
https://secure.hosting.vt.edu/www.arc.vt.edu/userguide/class-accounts-on-huckleberry/ .
GPU Programming with Fortran
Some information on how to prepare and compile a FORTRAN program for use on the ARC GPU's is available in https://secure.hosting.vt.edu/www.arc.vt.edu/userguide/cuda_fortran/
Licensed Software at ARC
A short discussion of licensed software installed on ARC clusters has been posted at :
https://secure.hosting.vt.edu/www.arc.vt.edu/userguide/licensed_software/
Accessing LAPACK from the MKL library
Many user programs reference the LAPACK (Linear Algebra PACKage) library. The ARC software library does not include a standalone compiled version of this library. However, a highly tuned version of the LAPACK library is included in the ATLAS library (along with the BLAS, FFT functions, and many others). The optimized versions of LAPACK functions available through the MKL library typically offer better performance than a user could get from a source code library of LAPACK. For details, refer to https://secure.hosting.vt.edu/www.arc.vt.edu/userguide/lapack_mkl/ .
Accessing LAPACK from the ATLAS library
Many user programs reference the LAPACK (Linear Algebra PACKage) library. The ARC software library does not include a standalone compiled version of this library. However, some of the most useful LAPACK functions are available in the ATLAS library, which contains automatically tuned versions of those functions, as well as every BLAS function. Automatic tuning typically offers better performance than a user could get from a source code library of LAPACK. For details, refer to https://secure.hosting.vt.edu/www.arc.vt.edu/userguide/lapack_atlas/ .