To Phil and Pedro: Just woke up, skimmed through your e-mails, and I promise to look at the build issue that Pedro found starting just when I finish this e-mail. Further thoughts below on what Phil said.
On 2016-12-19 17:42-0000 Phil Rosenberg wrote: > Hi Alan > Could you just confirm to me what command you are using to test the timings? Exactly as stated in the commit message (after building the x01c, wxwidgets, and wxPLViewer prerequisite targets). time examples/c/x01c -dev wxwidgets -np; echo "done x01c"; time examples/c/x01c -dev wxwidgets -np;echo "done x01c It is the second of these commands where the pause occurs. At one point I thought as you did that the random number generator would have something to do with it, but is that actually used in the interval where the pause is occurring? The only reference to randomGenerator in the key interval of code is static Rand randomGenerator; // make this static so that rapid repeat calls don't use the same seed Last night I dismissed this possibility, but I guess what you are saying now is this is not a simple declaration of Rand for later on, but this also actually ends up running randomGenerator! Regardless of such speculation on my part, I will try building up some entropy before the above test to see if that affects the pause. I will also try temporarily commenting out randomGenerator from all aspects of the code to see if that totally solves the issue. Then if that step completely proves Phil's hypothesis, figure out a fix that doesn't require a tonne of pure entropy. But the first priority is the above build fix. Phil, later on today (hopefully just an hour or so) I will also start testing your patch for the other issue of getting ready for Plot(). So yesterday we had two long-standing wxwidgets-related issues and today there is a decent prospect of fixing both of them. So I am pretty hopeful right now! Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/intel _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
