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| Paper: |
Map-making for Large-Format Detector Arrays on CCAT |
| Volume: |
495, Astronomical Data Analysis Software and Systems XXIV (ADASS XXIV) |
| Page: |
293 |
| Authors: |
Marsden, G.; Jenness, T.; Scott, D. |
| Abstract: |
CCAT is a large submillimetre telescope to be built near the ALMA
site in northern Chile. A large-format KID camera, with up to 48,000
detectors at a single waveband sampled at ∼1 kHz, will have a
data rate ∼50 times larger than SCUBA-2, the largest existing
submillimetre camera. Creating a map from this volume of data will be
a challenge, both in terms of memory and processing time required. We
investigate how to extend SMURF, the iterative map-maker used for
reducing SCUBA-2 observations, to a distributed-node parallel system,
and estimate how the processing time scales with the number of nodes
in the system. |
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