FLAGCAL:A flagging and calibration package for radio interferometric   data
  We describe a flagging and calibration pipeline intended for making quick look images from GMRT data. The package identifies and flags corrupted visibilities, computes calibration solutions and interpolates these onto the target source. These flagged calibrated visibilities can be directly imaged using any standard imaging package. The pipeline is written in "C" with the most compute intensive algorithms being parallelized using OpenMP. 
Jayanti Prasad and Jayaram Chengalur
astro-ph.IM