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-rw-r--r--include/astra/CudaCglsAlgorithm.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/astra/CudaCglsAlgorithm.h b/include/astra/CudaCglsAlgorithm.h
index 7734d6e..a529bfd 100644
--- a/include/astra/CudaCglsAlgorithm.h
+++ b/include/astra/CudaCglsAlgorithm.h
@@ -101,7 +101,7 @@ public:
bool initialize(CProjector2D* _pProjector,
CFloat32ProjectionData2D* _pSinogram,
CFloat32VolumeData2D* _pReconstruction,
- int _iGPUindex = 0, int _iDetectorSuperSampling = 1,
+ int _iGPUindex = -1, int _iDetectorSuperSampling = 1,
int _iPixelSuperSampling = 1);
/** Get a description of the class.