Q:

Easily accessible scientific code that uses LAPACK

I would like to analyze some well-used scientific codes that make heavy use of LAPACK. I.e. I'm looking for codes that both spend a lot of time within LAPACK functions and use LAPACK non-trivially (i.e. calling more than just DGEMM). I would be interested in applications that use either sequential LAPACK or ScaLAPACK or any other implementation that exposes the same interface. 
What are some good examples that are easy to obtain? Ideally they would be open source or available-on-request.

A:

It's hard to know where to start, as there are so many codes out there using LAPACK and your criteria are a bit… subjective (“use LAPACK non-trivially”). I'll throw in some pointers:

you can find here an old survey of LAPACK users, which gives some information into who uses it, and what are they using it for
most quantum chemistry codes out there use LAPACK for their linear algebra (CPMD, CP2K, octopus, to cite only a few open-source codes)
you could also go to the packages list of your favorite Linux distro, and check out what packages depend on lapack

