Trac January 2016

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92 discussions

[Einstein Toolkit] #1847: FFTW3 fortran interface not working for system installation
by Einstein Toolkit 25 Jan '16

25 Jan '16

#1847: FFTW3 fortran interface not working for system installation ----------------------+----------------------------------------------------- Reporter: knarf | Owner: Type: defect | Status: new Priority: optional | Milestone: Component: Cactus | Version: development version Keywords: | ----------------------+----------------------------------------------------- The FFTW3 thorn is able to detect system installations, but does not add (for example) /usr/include as include path since it is a standard system include path (for C), and could collide with other libraries. This is correct. However, some system fftw3 libraries install the fftw3.f Fortran file also in /usr/include, and expect this to be in the include path for the Fortran compiler. This, however, is not the case for all compilers (since /usr/include is meant for C headers, not Fortran), i.e., for gfortran. This could be seen as bug in the fftw3 installation, but we should provide a workaround. Right now, the FFTW3 thorn does not always provide a working interface for Fortran. Other libraries have similar problems, so I wonder if we could provide a common workaround. We have to add these directories as -I flag to the Fortran compiler, but we must not add it to the C or C++ compilers. I don't see a good way to currently do this within Cactus. Am I right? If so: would it make sense to have Cactus look for a variable, i.e., FFTW3_FINC_DIRS, and to only add those for Fortran compilations? -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1847> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #1852: MoL: Add "RK2-central" scheme
by Einstein Toolkit 09 Jan '16

09 Jan '16

#1852: MoL: Add "RK2-central" scheme -----------------------------------+---------------------------------------- Reporter: eschnett | Owner: Type: enhancement | Status: new Priority: minor | Milestone: Component: EinsteinToolkit thorn | Version: development version Keywords: | -----------------------------------+---------------------------------------- This is an RK2 integrator where the first substep has size dt/2. See <https://bitbucket.org/cactuscode/cactusnumerical/pull-requests/6/mol- add-rk2-central-scheme/diff>. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1852> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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Trac January 2016