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The Parallel Interferometric GPU Imager (Pigi) is a novel implementation of the image domain gridding algorithm that is compatible with both NVIDIA and AMD graphics cards. It provides a high-performance implementation capable of gridding hundreds of mega visibilities per second on modest hardware.
Pigi can correct for baseline-, time-, and direction-dependent effects such as the primary beam or ionosphere as part of the (de)gridding process.
Pigi provides end-to-end deconvolution capabilities with a basic iterative cleaning implementation.