Dear Dumux users, yesterday Melanie detected that the combination of gcc 4.5.2, YaspGrid and the compiler option -O3 may yield wrong results for the Dumux trunk based on Dune 2.2. Apparently, the element a reference is referring to is lost during the assembly process, resulting in random results for the element data.
Reducing the optimization level (to -O2 or lower), as well as changing the grid type or the gcc version (we checked 4.3.4, 4.5.4, 4.6.3) all solved the problem. We therefore decided to not investigate this any further unless we also observe it for more compiler/grid/optimization combinations. Kind regards Bernd -- _____________________________________________________________________ Bernd Flemisch phone: +49 711 685 69162 IWS, Universität Stuttgart fax: +49 711 685 60430 Pfaffenwaldring 61 email: [email protected] D-70569 Stuttgart url: www.hydrosys.uni-stuttgart.de _____________________________________________________________________ _______________________________________________ Dumux mailing list [email protected] https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
