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SAGECal is a very fast, memory efficient and GPU accelerated radio interferometric calibration program. It can handle all source models including points, Gaussians and Shapelets. It can calibrate along hundreds of directions without running out of memory in almost real time. Intel Xeon Phi acceleration is also available. Distributed calibration using MPI and consensus optimization is enabled. Also tools to build/restore sky models are included.
Features
- Levenberg-Marquardt, LBFGS, Riemannian Trust Region, Nesterov's accelerated gradient descent algorithms
- GPU acceleration using CUDA
- Intel Xeon Phi acceleration
- Fast and accurate interferometric calibration
- Gaussian and Student's t noise models
- Shapelet source models
- CASA MS data format supported
- Distributed calibration using MPI - consensus optimization with data multiplexing
- Tools to build sky models and restore sky models to images
- Adaptive update of ADMM penalty (Barzilai-Borwein a.k.a. Spectral method)
Project Samples
License
GNU General Public License version 2.0 (GPLv2)Follow SAGECAL
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