# PETSc Options, IO, and System Utilities

PETSc provides a variety of "system" level routines, including parallel file
access, graphics, options management, and synchronized printing to screen.

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Directories
<p><a href="sprng/index.html">sprng</a><br>
<a href="rand/index.html">rand</a><br>
<a href="curand/index.html">curand</a><br>
<a href="rand48/index.html">rand48</a><br>
<a href="rander48/index.html">rander48</a><br>
<a href="random123/index.html">random123</a><br>