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LIGO/Caltech DetChar Software Status Update - July 2007

This document provides an overview of the current status of the DetChar software used in LIGO/Caltech and Virgo projects as of July 25, 2007. It highlights the upcoming software release, detailing changes and improvements made in version gds-2.11.2, including updates on dependencies, functionality enhancements, and monitor stability. The report notes the stable running of approximately 150 monitors at LHO and LLO, outlines improvements in FOMs analysis, and emphasizes the new features and fixes implemented in both online and offline versions of the software.

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LIGO/Caltech DetChar Software Status Update - July 2007

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  1. GDS Software Status John Zweizig LIGO/Caltech LSC/Virgo DetChar Session Cambridge, July 25, 2007 LIGO-G070584-00-Z

  2. Overview • Current Status • New version to be released July 2007 • Changes / Improvements • Schedule

  3. Online Status • dmt-2.11.1 installed on online systems with root-5.14.0 and framecpp-1.8.235 • ~150 monitors + Support process running at LHO (91) and LLO (61) • Running on 10 nodes (~33GHz) at LHO and 5 nodes (~15GHz) at LLO. • Almost everything seems to be running stably • Little manual intervention. • FOMs, trends, Spi, etc running with no problems • But • PlaneMon seems to be allergic to root-5.14 • Many accumulated fixes, changes • New functionality defined

  4. FOMS!!!

  5. Off-line Version (dol-0.4.1) • dol-0.4.1 • Rpms available • built/tested by Adam Miller (UWM) • 32/64-bit implementations • Fedora Core 4 • Installs into /opt/lscsoft/dol/ • Links to lscsoft dependencies. • Available from daswg repository, see http://www.lsc-group.phys.uwm.edu/daswg/download/repositories.html for installation instructions. • 32-bit and 64-bit versions installed (as appropriate) on LIGO clusters and gateway/development

  6. Changes/Improvements • Build scripts / dependencies • Optional LAL dependency • T-domain calibration needed by StrainWatch • New root version: 5.15-08 • New FrameCPP-1.9.0 • New compression methods • Base library • Time constructor made “explicit” • Can't user integer instead of time any more.

  7. Changes II • Heterodyning • TSeries::fShift() • Calculates phase with complex 'phi *= delta' • Fast, but lost precision • complex<float> -> complex<double> • Mixer • Recalculates phase for each sample with 'phi=fmod(phi+delta, twopi) • Slow • Use sincos(), avoid copies, scalar × complex

  8. Changes III • Containers • TSeries • Fix heterodyning (see above) • DVector • Specialize DVectC::mpy() • fSeries • Base class for f-domain containers (DFT, PSD, CSD, ASD) • Future replacements for FSeries, FSpectrum. • More coherent i/f, fewer type limitations. • Test only

  9. Changes IV • Monitors • PDnMon: Monitor to look for inconsistencies in redundant PD signals. • StrainWatch: Monitor t-domain calibration results (uses Xavi's LAL code).

  10. Changes V • SignalProcessing • Mixer • Fix heterodyning (see above) • filter_delay • New class to adjust start time of filter output Tseries (esp. FIR based filters). • Service changes/bugs • Webview • Fix memory leak (partially) • Serve Spectra.

  11. Changes VI • Utilities: seg_calc • New segment manipulation utility • Interpretive command based • Fast! • Could be back-end for GUI • Commands: • Read file (arbitrary column format) • Define new segment type (evaluate) • Write • Execute macro • http://www.ligo.caltech.edu/~jzweizig/Utilities/seg_calc.html

  12. Upgrade Schedule • Online • Version gds-2.11.2 tagged • Dependencies installed at sites • Lal-5.2, root-5.15-08, metaio, • FrameCPP-1.9.0 – configuration broken? • Finish installation, start testing this week • Offline (dol) • Dol-4.3 tag will be based on gds-2.11.2 • Framecpp-1.9.0 rpm ready • Expect dol rpm in order 1 week

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