[python-dtcwt] 169/497: opencl: don't initialise output to zero

[Ghislain Vaillant]

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ghisvail-guest pushed a commit to branch debian/sid
in repository python-dtcwt.

commit bfb4585be0c3f40bc24344bf0cc800ee4c771de5
Author: Rich Wareham <rjw57 at cam.ac.uk>
Date:   Sat Nov 9 13:47:02 2013 +0000

    opencl: don't initialise output to zero
---
 dtcwt/opencl/lowlevel.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dtcwt/opencl/lowlevel.py b/dtcwt/opencl/lowlevel.py
index 75da4fb..047255a 100644
--- a/dtcwt/opencl/lowlevel.py
+++ b/dtcwt/opencl/lowlevel.py
@@ -273,7 +273,7 @@ def axis_convolve_dfilter(X, h, axis=0, queue=None, output=None):
     if output is None:
         output_shape = list(X.shape)
         output_shape[axis] >>= 1
-        output = cl_array.zeros(queue, output_shape, np.float32)
+        output = cl_array.empty(queue, output_shape, np.float32)
 
     return _apply_kernel(X, h, kern, output, axis=axis, elementstep=2)
 
@@ -286,7 +286,7 @@ def axis_convolve_ifilter(X, h, axis=0, queue=None, output=None):
     if output is None:
         output_shape = list(X.shape)
         output_shape[axis] <<= 1
-        output = cl_array.zeros(queue, output_shape, np.float32)
+        output = cl_array.empty(queue, output_shape, np.float32)
 
     return _apply_kernel(X, h, kern, output, axis=axis, elementstep=0.5)
 

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