<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Could you please send the output from ncdump -hs (the s is for compression info, since you have netcdf-4 files). Also send the output from 'q config' and the specs of the OS you are running on. These things are important for solving every problem. <div><br><div>--Jennifer</div><div><div><br><div><br><div><div>On Jul 12, 2010, at 4:42 PM, Colarco, Peter R. (GSFC-6133) wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi-<div><br></div><div>I am running opengrads 2.0.a7.oga.3/x86_64.</div><div><br></div><div>I have a very simple data descriptor file (below) to template a set of large-ish files (gridded 1152 x 721 x 7 points). When I simply "sdfopen" the first file and plot the first variable/first time/first level, I get my result essentially immediately. When I instead "xdfopen" the data descriptor file and try to plot the same, it takes some time (~10 sec) to plot. When I repeat the same sort of thing but operate on several times the difference in performance between the two methods is of course very noticeable.</div><div><br></div><div>The issue seems to be in the "options template" line below; taking that out and explicitly putting the first file in I can "xdfopen" the data descriptor file and plot the first variable essentially instantly. Additional metadata in the data descriptor file (e.g., from make_ctl.sh) does not help or matter as far as I can tell.</div><div><br></div><div>Can anyone suggest a solution to this problem? Am I doing something weird or wrong here?</div><div><br></div><div>Data Descriptor File:</div><div><br></div><div>dset /path/to/my/data/Y2003/M01/MYD04_L2_ocn.aero_tc8_051.qawt.%y4%m2%d2.nc4</div><div><div>options template</div><div>tdef time 248 linear 0z01jan2003 3hr</div><div><br></div><div>Thank you,</div><div>Pete Colarco</div><div><br></div><div><br></div><div><br></div><div> <div><span class="Apple-style-span" style="font-size: 12px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">--------------------------------------------------------------------</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Peter Colarco</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">NASA GSFC</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Code 613.3</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">NASA Goddard Space Flight Center</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Greenbelt, MD 20771</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">301.614.6382 (ph)</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">301.614.5903 (fax)</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; "><a href="mailto:peter.r.colarco@nasa.gov">peter.r.colarco@nasa.gov</a></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; "><a href="http://hyperion.gsfc.nasa.gov/People/Colarco">http://hyperion.gsfc.nasa.gov/People/Colarco</a></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">--------------------------------------------------------------------</font></div><div><br class="webkit-block-placeholder"></div></div></div></span><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"> </div> <br></div></div>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>http://gradsusr.org/mailman/listinfo/gradsusr<br></blockquote></div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>--</div><div>Jennifer M. Adams</div><div>IGES/COLA</div><div>4041 Powder Mill Road, Suite 302</div><div>Calverton, MD 20705</div><div><a href="mailto:jma@cola.iges.org">jma@cola.iges.org</a></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span></div></span> </div><br></div></div></div></div></body></html>