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# Third party tools

## Threading Analysis tools

### Intel ThreadChecker

This is a very useful tool that catches actual and potential race conditions in traversed code paths. It requires instrumentation and slows down runtimes significantly. It is available on both Windows and Linux.

### Intel ThreadProfiler

This tool presents a view of thread usage during runtime, showing starts and ends of threaded regions, regions of oversubscription and undersubscription. It works with both native threads and OpenMP, on Windows and Linux.

### Helgrind

A Linux open source threading analysis tool that checks for race conditions in code.

### Intel compiler

Although this might not seem like a threading analysis tool, the Intel compiler does support two very useful compiler warning flags to detect writes or potential writes to static variables, which are a common threading problem:

    warning #1711: assignment to statically allocated variable
    warning #1712: address taken of statically allocated variable

These warnings are enabled as -ww1711 on OSX and Linux, and /Qww1711 on Windows.

## Profiling tools

### Shark

Profiler on OSX. Shark is supplied with CHUD tools as a free optional install.

### Zoom

Statistical call graph profiler that runs on Linux. See http://rotateright.com/

### Intel PTU

Prototype statistical call graph tool, somewhat similar to Shark, available from http://whatif.intel.com .Requires an existing VTune license. Runs on Windows and Linux.

### VTune

Heavyweight profiler from Intel. Call-graphing adds significant overhead in instrumentation and runtime. Available on Windows and Linux.