This is an old revision of the document!
Benchmarks for filterbank creation with psrfits2fil
A series of tests were ran on dragnet (drg01), directly (now through slurm), on fits files from a random LOTAAS observation.
Data read/written on the same disk
1-core:354sec
Total time for 16 files:5664sec
4-cores:720sec
Total time for 16 files:2880sec
8-cores:1735sec
Total time for 16 files:3360sec
16-cores:3778sec
Total time for 16 files:3778sec
When writing the filterbank in the same disk with the fits file, the best performance is achieved by having ~4 psrfits2fil instances running.
Input/output on different disks
1-core:329sec
Total time for 16 files:5264sec
4-cores:523sec
Total time for 16 files:2092sec
8-cores:901sec
Total time for 16 files:1802sec
16-cores:1686sec
Total time for 16 files:1686sec
Using all the cores in the dragnet nodes gives the best performance.