In this merge request a small refactor is done into the OnePredict and ApplyBeam to facilitate further performance optimizations. This particular part of the code it is used by the GainCal to create a predicted sky model that takes into consideration of a beam model. Currently this create in itself a performance optimization although minimal.
The followings are timings considering only 100 time steps with the following characteristics
nchan: 150
ncorrelations: 4
nbaselines: 1711
ntimes: 100
time interval: 2.00278
use thread: true
number of patches: 64
patches clustered: true
number of components: 65
absolute orientation: false
all unpolarized: false
correct freq smearing: falseReference running time
Total DP3 time 69.5 real 607.57 user 45.3 system
2.7% ( 1882 ms) MSReader
95.8% ( 66 s) GainCal gaincal.
91.4% ( 60 s) of it spent in predict
2.8% ( 1865 ms) of it spent in reordering visibility data
5.0% ( 3302 ms) of it spent in estimating gains and computing residuals
0.0% ( 3 ms) of it spent in writing gain solutions to disk
Converged: 91, stalled: 9, non converged: 0, failed: 0
Iters converged: 6, stalled: 9, non converged: 0, failed: 0
1.3% ( 908 ms) MSWriter msout.
0.0% ( 0 ms) Creating task
199.8% ( 1815 ms) Writing (threaded)Avoid cache trashing
Total DP3 time 61.72 real 540.81 user 41.2 system
1.9% ( 1162 ms) MSReader
96.3% ( 59 s) GainCal gaincal.
90.4% ( 53 s) of it spent in predict
3.2% ( 1888 ms) of it spent in reordering visibility data
5.6% ( 3340 ms) of it spent in estimating gains and computing residuals
0.0% ( 1 ms) of it spent in writing gain solutions to disk
Converged: 91, stalled: 9, non converged: 0, failed: 0
Iters converged: 6, stalled: 9, non converged: 0, failed: 0
1.5% ( 936 ms) MSWriter msout.
0.2% ( 1 ms) Creating task
187.7% ( 1758 ms) Writing (threaded)Apply beam to single model direction and add to whole model
Total DP3 time 50.22 real 440.89 user 17.29 system
3.8% ( 1931 ms) MSReader
94.1% ( 47 s) GainCal gaincal.
88.2% ( 41 s) of it spent in predict
3.8% ( 1783 ms) of it spent in reordering visibility data
7.0% ( 3301 ms) of it spent in estimating gains and computing residuals
0.0% ( 4 ms) of it spent in writing gain solutions to disk
Converged: 91, stalled: 9, non converged: 0, failed: 0
Iters converged: 6, stalled: 9, non converged: 0, failed: 0
1.8% ( 893 ms) MSWriter msout.
0.0% ( 0 ms) Creating task
185.1% ( 1654 ms) Writing (threaded)