• Institute of Fluid Mechanics and Heat Transfer

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NAG-library

License Key

The license keys expire after one year. NAG sends a new key, unrequested, to Stefan Braun and Thomas Loimer. Usually, the new key is valid for the newest version. To install the new key, append the lines between ! NAG key begin and ! NAG key end to the file /usr/local/NAG/nag.key. Avoid blank lines!

The e-mail contains an ID number for the machine on which the license is valid. The ID-number can be obtained by running, as root,
  /usr/local/share/NAG/cll6i26dcl/license/bin/linux_x64/khostid.
The license status, here for the product cll6i26dcl, can be queried by calling
  /usr/local/share/NAG/cll6i26dcl/license/bin/linux_x64/klcheck cll6i26dcl.

Installation

Unpack the tar-file, e.g., into /usr/local/src/NAG, and run the install-script therein,

/usr/local/src/NAGnll6i271bl/install.sh -installdir=/usr/local/share/NAG

After installation, try to compile an example, from some temporary directory, and not as root,

/usr/local/share/NAG/nll6i271bl/scripts/nag_example -gnu a00aac

Enviroment variables to ease linking with the library can be set by sourcing nagvars.sh,
  . /usr/local/share/NAG/nll6i271bl/scripts/nagvars.sh

Documentation is downloaded to /usr/local/src/NAG/mk27-1_doc.tgz. Users should also set the environment variable OMP_NUM_THREADS to sensible values, e.g.,
  export OMP_NUM_THREADS=6
depending also on the value contained in OMP_NESTED.