• Mitchell, Daniel
• Bastholm, Eric
• Ord, Stephen
• Lenc, Emil
• Van Diepen, Ger
• Whiting, Matthew
• Khoo, Jonathan
• Collins, Daniel
• Wu, Xinyu
• Marquarding, Malte
• Bannister, Keith
• Lahur, Paulus
• Maher, Tony
• Voronkov, Max
• Guzman, Juan

Abstract

ASKAPsoft, the ASKAP Science Data Processor, provides data processing functionality, including:* Calibration * Spectral line imaging * Continuum imaging * Source detection and generation of source catalogs * Transient detectionASKAPsoft is developed as a part of the CSIRO Australian Square Kilometre Array Pathfinder (ASKAP) Science Data Processor component. ASKAPsoft is a key component in the ASKAP system. It is the primary software for storing and processing raw data, and initiating the archiving of resulting science data products into the data archive (CASDA).The processing pipelines within ASKAPsoft are largely written in C++ built on top of casacore and other third party libraries. The software is designed to be parallelised, where possible, for performance.ASKAPsoft is designed to be built and executed in a standard Unix/Linux environment and core dependencies must be fulfilled by the platform. These include, but are not limited to, a C/C++/Fortran compiler, Make, Python 2.7, Java 7 and MPI. More specific dependencies are downloaded by the ASKAPsoft build system and are installed within the ASKAPsoft development tree. Specific to the Debian platform, after a standard installation of Debian Wheezy (7.x) the following packages will need to be installed with apt-get:* g++ * gfortran * openjdk-7-jdk * python-dev * flex * bison * openmpi-bin * libopenmpi-dev * libfreetype6-dev * libpng12-devMore information regarding the building, installation and running of the software can be found in the README file in the root of the file structure that forms this collection.Source code can be accessed via the links in Related Materials section.-----A patch release covering the pipeline scripts and the processing software. The following bugs are fixed:* The pipeline configuration parameter FOOTPRINT_PA_REFERENCE willnow over-ride the value of footprint.rotation in the schedulingblock parset. Additionally, the scheduling block summary metadatafiles (created in the pipeline working directory) are now notregenerated if they already exist.* The metadata collection in the pipeline now does not fail if aFIELD in the measurement set has 'RA' in its name.* There was a memory leak in Selavy, causing an error to be thrownwhen dealing with fitted components, specifically when thenumGaussFromGuess flag was set to false and a fit failed. The codenow falls back to whatever the initial estimate for components was,even if that has fewer than the maximum number indicated bymaxNumGauss.* There was a half-pixel offset enforced in the location of thefitted Gaussian when fitting to the restoring beam whenimaging. This was resulting in a slightly incorrect restoringbeam.* If there are multiple MSs in the SB directory, one can be processedby giving MS_INPUT_SCIENCE its full path, setting the SB_SCIENCEparameter appropriately, and putting DIR_SB="".

Topics

• impedance spectroscopy
• mass spectrometry
• atom probe tomography