Examples/Examples_device.tex at master · smseo/Examples · GitHub

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\pagebreak
\chapter{Device Routines}
\label{chap:device}

\section{\code{omp\_is\_initial\_device} Routine}

The following example shows how the \code{omp\_is\_initial\_device} runtime library routine
can be used to query if a code is executing on the initial host device or on a
target device. The example then sets the number of threads in the \code{parallel}
region based on where the code is executing.

\cexample{device}{1c}

\fexample{device}{1f}

\section{\code{omp\_get\_num\_devices} Routine}

The following example shows how the \code{omp\_get\_num\_devices} runtime library routine
can be used to determine the number of devices.

\cexample{device}{2c}

\fexample{device}{2f}

\section{\code{omp\_set\_default\_device} and \\
\code{omp\_get\_default\_device} Routines}

The following example shows how the \code{omp\_set\_default\_device} and \code{omp\_get\_default\_device}
runtime library routines can be used to set the default device and determine the
default device respectively.

\cexample{device}{3c}

\fexample{device}{3f}