Added check_input flag

theano/configdefaults.py

@@ -489,3 +489,10 @@ AddConfigVar('openmp_elemwise_minsize',
              IntParam(200000),
              in_c_key=False,
          )
+
+AddConfigVar('check_input',
+             "Specify if types should check their input in their C code. "
+             "It can be used to speed up compilation, reduce overhead"
+              "(particularly for scalars) and reduce the number of generated C"
+              "files.",
+             BoolParam(True))

theano/sandbox/cuda/type.py

@@ -294,7 +294,7 @@ class CudaNdarrayType(Type):
             %(name)s = (CudaNdarray*)py_%(name)s;
             //std::cerr << "c_extract " << %(name)s << '\\n';
         """ % locals()
-        if(check_input):
+        if(check_input and theano.config.check_input):
             print >> sio, """
                 if (%(name)s->nd != %(nd)s)
                 {

theano/scalar/basic.py

@@ -273,7 +273,7 @@ class Scalar(Type):
 
     def c_extract(self, name, sub, check_input=True):
         specs = self.dtype_specs()
-        if(check_input):
+        if(check_input and theano.config.check_input):
             pre = """
             if (!PyObject_TypeCheck(py_%(name)s, &%(pyarr_type)s))
             {

theano/tensor/type.py

@@ -438,7 +438,7 @@ class TensorType(Type):
 
     def c_extract(self, name, sub, check_input=True):
         """Override `CLinkerType.c_extract` """
-        if(check_input):
+        if(check_input and theano.config.check_input):
             check = """
             %(name)s = NULL;
             if (py_%(name)s == Py_None) {

theano/tests/test_tutorial.py

@@ -246,7 +246,7 @@ class T_extending(unittest.TestCase):
         double.c_init = c_init
 
         def c_extract(name, sub, check_input=True):
-            if(check_input):
+            if(check_input and theano.config.check_input):
                 pre = """
                 if (!PyFloat_Check(py_%(name)s)) {
                     PyErr_SetString(PyExc_TypeError, "expected a float");
@@ -310,7 +310,7 @@ class T_extending(unittest.TestCase):
                 """ % dict(name = name)
 
             def c_extract(self, name, sub, check_input=True):
-                if(check_input):
+                if(check_input and theano.config.check_input):
                     pre = """
                     if (!PyFloat_Check(py_%(name)s)) {
                         PyErr_SetString(PyExc_TypeError, "expected a float");