ad required for synchronization that may outweigh the
computatational parallelism.  Therefore, you can only benefit from
threads if your problem is sufficiently large. 
<a name="index-shared_002dmemory-330"></a><a name="index-threads-331"></a>

<ul class="menu">
<li><a accesskey="1" href="Installation-and-Supported-Hardware_002fSoftware.html#Installation-and-Supported-Hardware_002fSoftware">Installation and Supported Hardware/Software</a>
<li><a accesskey="2" href="Usage-of-Multi_002dthreaded-FFTW.html#Usag