CARTA key features
CARTA adopts a client-server
architecture which is suitable for visualizing images with large file
sizes (GB to TB) easily obtained from ALMA, VLA, or SKA pathfinder
observations. It is impractical to process such a huge file
with a personal computer or laptop. In a client-server architecture,
computation and data storage are handled by remote enterprise-class servers
or clusters with high performance storage, while processed products are
sent to clients only for visualization with modern web features, such
as GPU-accelerated rendering. This architecture also enables users to
interact with the ALMA and VLA science archives by using CARTA as an interface.
CARTA has two flavors: Desktop version and Server version. The former is suitable for single-user usage with a laptop, a desktop, or a remote server in the "remote" execution mode. The later is suitable for institution-wide deployment to support multiple users with user authentication and addtional server-side features.
Memory-efficient when loading images
With ~1 GB of ram, a 16000 pixel x 16000 pixel image or a 16000 pixel x 16000 pixel x 1000 channel cube (~1 TB in size) can be loaded in seconds.
Parallelization and GPU-accelerated rendering
Parallelization with CPUs is invoked in data processing. GPU-accelerated rendering is adopted for raster images, contour images, and catalog overlays.
Progressive and responsive update of spectral profile
Region spectral profiles are updated progressively and may be cancelled at any time for a better user experience.
Customizable and reusable GUI layouts and preferences
CARTA is equipped with a highly customizable and reusable graphical user interface for various use cases.
Efficient catalogue processing and rendering
Catalogues with a million sources can be loaded and rendered in seconds. Catalogue files are processed with parallelization techniques and are rendered with GPU acceleration.
Efficient visualization with HDF5 (IDIA schema) images
The HDF5 format with the IDIA schema improves the user's experience of viewing large image cubes significantly.
Suitable for single-user usage with a laptop, a desktop or a remote server in the "remote" mode.
Current release: v1.4 (2020/09/17)
(remote mode only)
Installation instructions for macOS and Linux are here.
The user manual is available here.
Previous releases of CARTA can be found here.