GPULib
GPULib enables IDL developers to access the high-performance capabilities of modern NVIDIA graphics cards without knowledge of CUDA programming.
TaskDL
TaskDL is a task-farming solution for IDL designed for problems with loosely-coupled, parallel applications where no communication between nodes of a cluster is required.
mpiDL
mpiDL is a library of IDL bindings for Message Passing Interface (MPI) used for tightly-coupled parallel applications.
Remote Data Toolkit
The Remote Data Toolkit is a library of IDL routines allowing for easy access to various scientific data in formats such as OPeNDAP, HDF 5, and netCDF.