SCIRun2: a CCA framework for high performance computing. We present an overview of the SCIRun2 parallel component framework. SCIRun2 is based on the common component architecture (CCA) as stated by R. Armstrong et al. (1999) and the SCI Institutes’ SCIRun by C. Johnson and S. Parker (1999). SCIRun2 supports distributed computing through distributed objects. Parallel components are managed transparently over an M×N method invocation and data redistribution subsystem. A meta component model based on CCA is used to accommodate multiple component models such as CCA, CORBA and Dataflow. A group of monitoring components built on top of the TAU toolkit as stated in Advanced Computing Laboratory (1999) evaluate the performance of the other components.