A PRESTO-based Parallel Pulsar Search Pipeline Used for FAST Drift Scan
  Data
  We developed a pulsar search pipeline based on PRESTO (PulsaR Exploration and
Search Toolkit). This pipeline simply runs dedispersion, FFT (Fast Fourier
Transformation), and acceleration search in process-level parallel to shorten
the processing time. With two parallel strategies, the pipeline can highly
shorten the processing time in both the normal searches or acceleration
searches. This pipeline was first tested with PMPS (Parkes Multibeam Pulsar
Survery) data and discovered two new faint pulsars. Then, it was successfully
used in processing the FAST (Five-hundred-meter Aperture Spherical radio
Telescope) drift scan data with tens of new pulsar discoveries up to now. The
pipeline is only CPU-based and can be easily and quickly deployed in computing
nodes for testing purposes or data processes.
