Trac September 2014

trac@lists.einsteintoolkit.org

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133 discussions

[Einstein Toolkit] #1653: ExternalLibraries/MPI missing C++ library names
by Einstein Toolkit 15 Sep '14

15 Sep '14

#1653: ExternalLibraries/MPI missing C++ library names -----------------------------------+---------------------------------------- Reporter: barry.wardell | Owner: Type: defect | Status: new Priority: major | Milestone: Component: EinsteinToolkit thorn | Version: development version Keywords: | -----------------------------------+---------------------------------------- The MPI thorn currently uses mpicc to automatically detect the list of libraries to link against. On my machine this causes '-lmpi' to be added to the list of libraries to link. This is wrong in cases where thorns use C++. In that case, '-lmpi_cxx' should also be included. I have tested this using a simple hello world MPI program (code [http://mpitutorial.com/mpi-hello-world/ here]). When I compile this with gcc and '-lmpi' it works fine, but if I compile with g++ I also need to include '-lmpi_cxx'. This is on Mac OS X 10.9 with OpenMPI installed by Homebrew, but I would imagine it could also affect other systems. A simple fix in my case is to replace mpicc with mpic++ in the configure.pl of the MPI thorn. In that case, both libraries are correctly included and I can compile Cactus without any problems. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1653> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #1483: speed up reading metadata of HDF5 files in visit
by Einstein Toolkit 15 Sep '14

15 Sep '14

#1483: speed up reading metadata of HDF5 files in visit -------------------------+-------------------------------------------------- Reporter: rhaas | Owner: Type: enhancement | Status: new Priority: minor | Milestone: Component: Other | Version: development version Keywords: CarpetHDF5 | -------------------------+-------------------------------------------------- The attached patch tries to extract as much information about a dataset from the dataset name as possible. Since accessing attributes is slow but the dataset name comes for free this speeds up opening HDF5 files in VisIt drastically (I had a factor of 6 when I measured it quite a while ago). This is certainly not the nicest way of parsing the string, one could think of sequentially looking for "name=value" constructs in the string and acting based on the name rather than just matching against all possible options. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1483> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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[Einstein Toolkit] #1575: Declare cctkGH as "const cGH*"
by Einstein Toolkit 05 Sep '14

05 Sep '14

#1575: Declare cctkGH as "const cGH*" -------------------------+-------------------------------------------------- Reporter: eschnett | Owner: Type: enhancement | Status: new Priority: major | Milestone: Component: Cactus | Version: development version Keywords: | -------------------------+-------------------------------------------------- cctkGH is declared as "const cGH*" in several places, but DECLARE_CCTK_ARGUMENTS still declares it only as "cGH*". This should be changed. I checked, and some thorns need updating to deal with this. I propose to make this change after the release. -- Ticket URL: <https://trac.einsteintoolkit.org/ticket/1575> Einstein Toolkit <http://einsteintoolkit.org> The Einstein Toolkit

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Trac September 2014