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Results of OpenCL rectangular-copy from GPU to CPU
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Size of rectangle to be copiedNVIDIA Tesla C2050AMD FirePro V4800
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Contiguous in memoryNon-contiguous in memoryNon-contiguous/contiguousContiguous in memoryNon-contiguous in memoryNon-contiguous/contiguous
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512 x 5120.0016230.0024341.4996919290.003110.0063072.027974277
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1024 x 5120.0059990.0074411.2403733960.0112670.021061.869175468
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2048 x 20480.0223850.0282941.2639714090.042210.081331.926794598
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4096 x 40960.0849710.1140741.342505090.1729261.1594296.70476967
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The OpenCL code was compiled with NVIDIA OpenCL driver version 304.64The OpenCL code was compiled with AMD OpenCL driver version 1.2
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The host code was compiled with g++ 4.6.1
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