diff options
Diffstat (limited to 'matlab')
| -rw-r--r-- | matlab/mex/astra_mex_plugin_c.cpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/matlab/mex/astra_mex_plugin_c.cpp b/matlab/mex/astra_mex_plugin_c.cpp index a279df8..4ed534e 100644 --- a/matlab/mex/astra_mex_plugin_c.cpp +++ b/matlab/mex/astra_mex_plugin_c.cpp @@ -42,6 +42,35 @@ $Id$ using namespace std; using namespace astra; +static void fixLapackLoading() +{ + // When running in Matlab, we need to force numpy + // to use its internal lapack library instead of + // Matlab's MKL library to avoid errors. To do this, + // we set Python's dlopen flags to RTLD_NOW|RTLD_DEEPBIND + // and import 'numpy.linalg.lapack_lite' here. We reset + // Python's dlopen flags afterwards. + PyObject *sys = PyImport_ImportModule("sys"); + if (sys != NULL) { + PyObject *curFlags = PyObject_CallMethod(sys, "getdlopenflags", NULL); + if (curFlags != NULL) { + PyObject *retVal = PyObject_CallMethod(sys, "setdlopenflags", "i", 10); // RTLD_NOW|RTLD_DEEPBIND + if (retVal != NULL) { + PyObject *lapack = PyImport_ImportModule("numpy.linalg.lapack_lite"); + if (lapack != NULL) { + Py_DECREF(lapack); + } + PyObject *retVal2 = PyObject_CallMethod(sys, "setdlopenflags", "O",curFlags); + if (retVal2 != NULL) { + Py_DECREF(retVal2); + } + Py_DECREF(retVal); + } + Py_DECREF(curFlags); + } + Py_DECREF(sys); + } +} //----------------------------------------------------------------------------------------- /** astra_mex_plugin('init'); @@ -55,6 +84,10 @@ void astra_mex_plugin_init() PyEval_InitThreads(); } +#ifndef _MSC_VER + fixLapackLoading(); +#endif + // Importing astra may be overkill, since we only need to initialize // PythonPluginAlgorithmFactory from astra.plugin_c. PyObject *mod = PyImport_ImportModule("astra"); |