<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Hi Daniel Costola, D. wrote: <blockquote cite="midA8F615EE446C9B4D837FB67447C0D997EBADDC@EXCHANGE3.campus.tue.nl" type="cite"> <pre wrap="">I download the version from pre-release_patches on Friday. It compiles well, and there are no errors. The problem is that the training models calculation is strangely slow. I kill the process before the end, after 4.5 hours! Just to have a comparison, we checkout the current version from trunk, and it took only 40 minutes to fully install it. </pre> </blockquote> The cause, I suspect, is the new calculation of diffuse shading. My testing on relatively simple models did not give me cause for concern. However, Jon Hand has pointed out to me the long run-times with exemplar models where these have complex shading devices. To help mitigate this problem I changed the default in ish to an isotropic sky (i.e. one pass of the sky vault per target surface and month-day) rather than anisotropic (each month-day hour reprocessed). While this will reduce the computation load by a factor of 10, it will still lead to long compute times in some cases. Jon and I have discussed the problem and agreed that the solution is to store all zone shading & insolation databases associated with exemplar models in their ascii form (as produced by ish) so that an install will only require an ascii-to-binary conversion. Look out for a posting to this effect in the near future. Regards, Joe <pre class="moz-signature" cols="110">-- Professor J A Clarke email: <a class="moz-txt-link-abbreviated" href="mailto:joe@esru.strath.ac.uk">joe@esru.strath.ac.uk</a> ESRU, Dept. of Mechanical Eng. phone: +44 141 548 3986 University of Strathclyde fax: +44 141 552 5105 Glasgow G1 1XJ, UK <a class="moz-txt-link-freetext" href="http://www.esru.strath.ac.uk/">http://www.esru.strath.ac.uk/</a> </pre> </body> </html>