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cudaUVABandwidth

Benchmarks of speed of using CUDA UVA-transfer vs DMA-controller (CUDA 5.0 and C++03)

Source code requires: CUDA >= 4.0 and C++03

Recomended: CUDA 5.0 and C++03 in MSVS 2010

Comparison bandwidth for memory transfer for blocks 128 Bytes - 128 MB: CPU-RAM -> GPU-RAM -> CPU-RAM:

  • standard MPP-approach with using DMA-controller
  • with GPU-Cores by using Unified Virtual Addressing

Result of benchmarks on GeForce GTX460 SE CC2.1 see in: result.txt

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