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+Valgrind is a framework for building dynamic analysis tools. There are
+Valgrind tools that can automatically detect many memory management
+and threading bugs, and profile your programs in detail. You can also
+use Valgrind to build new tools.
+
+The Valgrind distribution currently includes six production-quality
+tools: a memory error detector, two thread error detectors, a cache
+and branch-prediction profiler, a call-graph generating cache and
+branch-prediction profiler, and a heap profiler. It also includes
+three experimental tools: a heap/stack/global array overrun detector,
+a different kind of heap profiler, and a SimPoint basic block vector
+generator. It runs on the following platforms: x86/Linux, AMD64/Linux,
+PPC32/Linux, PPC64/Linux, ARM/Linux, x86/MacOSX and AMD64/MacOSX.
+
+Optional dependency: either mpich or openmpi. If one of these is
+found, valgrind will include the MPI wrapper, which allows using
+valgrind with software that uses the MPI message passing standard.
+Note that only one of mpich or openmpi should be installed, as they
+conflict with each other.