Make a better error message and re-enable the compilation cache for GpuConvMM.

theano/sandbox/cuda/blas.py

@@ -578,9 +578,8 @@ class GpuCorrMM(GpuOp):
         return ['cuda_ndarray.cuh', '<stdio.h>']
 
     def c_code_cache_version(self):
-        return
         # raise this whenever modifying any of the support_code_files
-        return (0, 21)
+        return (0, 22)
 
     def c_support_code_apply(self, node, nodename):
         # REMEMBER TO RAISE c_code_cache_version when changing any of

theano/sandbox/cuda/conv_gemm.cu

@@ -132,8 +132,12 @@ CudaNdarray* corrMM(const CudaNdarray *input,
 	 nOutputPlane != CudaNdarray_HOST_DIMS(output)[1] ||
 	 outputHeight != CudaNdarray_HOST_DIMS(output)[2] ||
 	 outputWidth != CudaNdarray_HOST_DIMS(output)[3]){
-	   PyErr_SetString(PyExc_ValueError,
-           "GpuCorrMM outputs parameter don't have the good shape.");
+	   PyErr_Format(
+	       PyExc_ValueError,
+	       "GpuCorrMM outputs parameter don't have the good shape %d %d %d %d, %d %d %d %d\n",
+	       batchSize, nOutputPlane, outputHeight, outputWidth,
+	       CudaNdarray_HOST_DIMS(output)[0], CudaNdarray_HOST_DIMS(output)[1],
+	       CudaNdarray_HOST_DIMS(output)[2], CudaNdarray_HOST_DIMS(output)[3]);
        return NULL;
      }
      // Create temporary columns