1. Global Helioseismology Pipeline Status 11/5/2007

2. Global Helioseismology Lead – Jesper Schou Lead – Jesper Schou Task Task Remap Dopplergrams to heliographic coords. Remap Dopplergrams to heliographic coords. Project heliographic images onto spherical harmonics Project heliographic images onto spherical harmonics Detrend, gapfill, FFT, and peak-bag/ridge-fit spherical-harmonics time series to yield mode parameters/frequencies Detrend, gapfill, FFT, and peak-bag/ridge-fit spherical-harmonics time series to yield mode parameters/frequencies Run inversion code to yield internal sound-speed and internal rotation Run inversion code to yield internal sound-speed and internal rotation

3. Global Helioseismology (cont’d.) Input – Dopplergrams (dataseries hmi.???) Input – Dopplergrams (dataseries hmi.???) Level 2 Output Level 2 Output Spherical-harmonics time-series Spherical-harmonics time-series With gaps, drifting – data saved in hmi.???, cadence is 72 d., size is 832 GB With gaps, drifting – data saved in hmi.???, cadence is 72 d., size is 832 GB Gap-filled, detrended – data saved in hmi.???, cadence is 72 d., size is 832 GB Gap-filled, detrended – data saved in hmi.???, cadence is 72 d., size is 832 GB Mode parameters/frequencies – data saved in hmi.???, cadence is 72 d., size of 3 files is 2.5 MB Mode parameters/frequencies – data saved in hmi.???, cadence is 72 d., size of 3 files is 2.5 MB Internal rotation(r, lat.) – data saved in hmi.???, cadence is 72 d., size is ~25 KB ea. file (number of files not known) Internal rotation(r, lat.) – data saved in hmi.???, cadence is 72 d., size is ~25 KB ea. file (number of files not known) Internal Sound speed(r, lat.) – data saved in hmi.???, cadence is 72 d., size is ??? Internal Sound speed(r, lat.) – data saved in hmi.???, cadence is 72 d., size is ???

4. Global Helioseismology (cont’d.) Code Code “v2helio” (Keh-Cheng, Art) – remap Dopplergrams to heliographic coordinates “v2helio” (Keh-Cheng, Art) – remap Dopplergrams to heliographic coordinates “helio2mlat” (???) – remap heliographic coordinates to ??? “helio2mlat” (???) – remap heliographic coordinates to ??? “qdotprod” (???) – project onto basis vector “qdotprod” (???) – project onto basis vector “retile” (???) – rearrange data in chunks “retile” (???) – rearrange data in chunks (Tim) – fill gaps and detrend time series (Tim) – fill gaps and detrend time series (Jesper) – for low to med l, peak bag (Jesper) – for low to med l, peak bag (???) – for high l, ridge fit (???) – for high l, ridge fit (???) – inversion for internal sound speed (???) – inversion for internal sound speed (Schou) – inversion for internal rotation (Schou) – inversion for internal rotation

5. Global Helioseismology (cont’d.) Processors Processors 72 – Code that remaps, projects, retiles (1 h. ea. processor) 72 – Code that remaps, projects, retiles (1 h. ea. processor) 72 – gap fill/detrend (2+ h. ea. processor) 72 – gap fill/detrend (2+ h. ea. processor) 72 – peak bag/ridge fit (2 h. ea. processor) 72 – peak bag/ridge fit (2 h. ea. processor) 1 – Internal rotation inversion (~2 min. ea. processor) 1 – Internal rotation inversion (~2 min. ea. processor) ??? – sound-speed inversion ??? – sound-speed inversion Status Status All code ready to port, except peak-bagging which needs some improvements; remapping (v2helio) mostly ported All code ready to port, except peak-bagging which needs some improvements; remapping (v2helio) mostly ported Plan/Issues Plan/Issues Need a schedule Need a schedule Not sure which harmonics time-series to save, gap-filled/detrended, or with gaps/drifting Not sure which harmonics time-series to save, gap-filled/detrended, or with gaps/drifting At what resolutions will sound speed be created? At what resolutions will sound speed be created? Is cadence remaining at 72 days? Is cadence remaining at 72 days? Would like to use keywords to automate gap identification Would like to use keywords to automate gap identification Big CPU requirements? Big CPU requirements?