Delete gpuarray.init_device and use init_gpu_device like everyone else.

theano/__init__.py

@@ -109,8 +109,10 @@ if config.device.startswith('gpu') or config.init_gpu_device.startswith('gpu'):
 
         theano.sandbox.cuda.tests.test_driver.test_nvidia_driver1()
 
-if config.device.startswith('cuda') or config.device.startswith('opencl') or \
-        config.gpuarray.init_device != '':
+if (config.device.startswith('cuda') or
+        config.device.startswith('opencl') or
+        config.init_gpu_device.startswith('cuda') or
+        config.init_gpu_device.startswith('opencl')):
     import theano.sandbox.gpuarray
 
 # Use config.numpy to call numpy.seterr

theano/configdefaults.py

@@ -73,19 +73,19 @@ class DeviceParam(ConfigParam):
         self.default = default
 
         def filter(val):
-            if val.startswith('cpu') or val.startswith('gpu') \
+            if val == self.default or val.startswith('gpu') \
                     or val.startswith('opencl') or val.startswith('cuda'):
                 return val
             else:
                 raise ValueError(('Invalid value ("%s") for configuration '
                                   'variable "%s". Valid options start with '
-                                  'one of "cpu", "gpu", "opencl", "cuda"'
+                                  'one of "gpu", "opencl", "cuda"'
                                   % (val, self.fullname)))
         over = kwargs.get("allow_override", True)
         super(DeviceParam, self).__init__(default, filter, over)
 
     def __str__(self):
-        return '%s (cpu, gpu*, opencl*, cuda*) ' % (self.fullname,)
+        return '%s (gpu*, opencl*, cuda*) ' % (self.fullname, self.default)
 
 AddConfigVar(
     'device',
@@ -94,14 +94,6 @@ AddConfigVar(
      "on it. Do not use upper case letters, only lower case even if "
      "NVIDIA use capital letters."),
     DeviceParam('cpu', allow_override=False),
-    in_c_key=False,)
-
-AddConfigVar('gpuarray.init_device',
-             """
-             Device to initialize for gpuarray use without moving
-             computations automatically.
-             """,
-             StrParam(''),
     in_c_key=False)
 
 AddConfigVar(
@@ -110,12 +102,7 @@ AddConfigVar(
      "Unlike 'device', setting this option will NOT move computations, "
      "nor shared variables, to the specified GPU. "
      "It can be used to run GPU-specific tests on a particular GPU."),
-    EnumStr('', 'gpu',
-            'gpu0', 'gpu1', 'gpu2', 'gpu3',
-            'gpu4', 'gpu5', 'gpu6', 'gpu7',
-            'gpu8', 'gpu9', 'gpu10', 'gpu11',
-            'gpu12', 'gpu13', 'gpu14', 'gpu15',
-            allow_override=False),
+    DeviceParam('', allow_override=False),
     in_c_key=False)
 
 AddConfigVar(

theano/sandbox/cuda/__init__.py

@@ -535,10 +535,7 @@ def handle_shared_float32(tf):
 # import dependency. So we also test it in the file theano/__init__.py
 if config.device.startswith('gpu'):
     use(device=config.device, force=config.force_device, test_driver=False)
-elif config.init_gpu_device:
-    assert config.device == "cpu", (
-        "We can use the Theano flag init_gpu_device"
-        " only when the Theano flag device=='cpu'")
+elif config.init_gpu_device.startswith('gpu'):
     _logger.warning(("GPU device %s will be initialized, and used if a GPU is "
           "needed. "
           "However, no computation, nor shared variables, will be implicitly "

theano/sandbox/gpuarray/__init__.py

@@ -57,8 +57,9 @@ if pygpu:
             import theano.compile
             theano.compile.shared_constructor(gpuarray_shared_constructor)
             optdb.add_tags('gpuarray_opt', 'fast_run', 'fast_compile')
-        elif config.gpuarray.init_device != '':
-            init_dev(config.gpuarray.init_device)
+        elif (config.init_gpu_device.startswith('cuda') or
+              config.init_gpu_device.startswith('opencl')):
+            init_dev(config.init_gpu_device)
 
         from .basic_ops import (GpuAlloc, GpuContiguous, GpuEye, GpuFromHost,
                                 GpuJoin, GpuReshape, GpuSplit, HostFromGpu)
@@ -70,7 +71,8 @@ if pygpu:
     except Exception:
         error("Could not initialize pygpu, support disabled", exc_info=True)
 else:
-    if (config.gpuarray.init_device != '' or
+    if (config.init_gpu_device.startswith('cuda') or
+            config.init_gpu_device.startswith('opencl') or
             config.device.startswith('opencl') or
             config.device.startswith('cuda')):
         error("pygpu was configured but could not be imported", exc_info=True)