Merge pull request #5832 from lamblin/fix_5810

.travis/travis_install.sh

@@ -10,5 +10,5 @@ fi
 
 source activate pyenv
 if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then conda install --yes -q mkl numpy=1.9.1 scipy=0.14.0 nose=1.3.0 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx=1.5.1 mkl-service libgfortran=1; fi
-if [[ $TRAVIS_PYTHON_VERSION == '3.3' ]]; then conda install --yes -q mkl numpy=1.9.1 scipy=0.14.0 nose=1.3.4 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx=1.5.1 mkl-service; fi
+if [[ $TRAVIS_PYTHON_VERSION == '3.3' ]]; then conda install --yes -q mkl numpy=1.9.1 scipy=0.14.0 nose=1.3.4 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 "sphinx<=1.5.1" mkl-service; fi
 source deactivate

theano/tensor/alt_gemm_template.c

@@ -144,6 +144,9 @@ void %(name)s(
     PyObject* opB_transposed = alt_op_%(float_type)s(!to_transpose_B, B, nrowb, ncolb, *LDB);
     PyObject* opB_trans_dot_opA_trans = PyArray_New(&PyArray_Type, 2, computation_dims, %(npy_float)s, computation_strides, computation_pointer, 0, computation_flags, NULL);
     PyArray_MatrixProduct2(opB_transposed, opA_transposed, (PyArrayObject*)opB_trans_dot_opA_trans);
+    /* PyArray_MatrixProduct2 adds a reference to the output array,
+     * which we need to remove to avoid a memory leak. */
+    Py_XDECREF(opB_trans_dot_opA_trans);
     if(*BETA == 0) {
         if(*ALPHA != 1.0)
             alt_numpy_scale_matrix_inplace_%(float_type)s(ALPHA, (PyArrayObject*)opB_trans_dot_opA_trans);

theano/tensor/blas_headers.py

@@ -1032,7 +1032,7 @@ def openblas_threads_text():
 
 def blas_header_version():
     # Version for the base header
-    version = (1,)
+    version = (2,)
     if detect_macos_sdot_bug():
         if detect_macos_sdot_bug.fix_works:
             # Version with fix